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  • Get used color names from image

    - by atmorell
    Hello, I would like to check what colors is present in a image. This will be stored in the database and used for a search form. (red=1, green=1, blue=0, yellow=1, black=1, white=1 etc.) img = Magick::Image.read('phosto-file.jpg').first img = img.quantize(10 h = img.color_histogram pp h {red=12815, green=18494, blue=15439, opacity=0=>13007, red=44662, green=47670, blue=51967, opacity=0=>18254, red=17608, green=43331, blue=48321, opacity=0=>11597, red=21105, green=25865, blue=39467, opacity=0=>10604, red=15125, green=36629, blue=22824, opacity=0=>10223, red=52102, green=42405, blue=10063, opacity=0=>12928, red=39043, green=28726, blue=40855, opacity=0=>7728, red=10410, green=8880, blue=7826, opacity=0=>13795, red=25484, green=25337, blue=24235, opacity=0=>7351, red=44485, green=12617, blue=11169, opacity=0=>14513} How do I convert the 10 values to color names? red, green, NOMATCH, yellow, black, white etc. Only need the rough color name - not LimeGreen but Green etc. Best regards. Asbjørn Morell

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  • Simple HTML problem with href

    - by pallab
    I am trying to create images hyperlinked to some URL's and hyperlinks donot seem to work. I am using the code as given below at http://windchimes.co.in/index_w%20-%20Copy.html Can you tell me why the hyperlinks to the icons are not workking? <td width="29" style="padding-bottom: 42px;><a href="http://windchimes.co.in/blog" target="_blank"><img align="middle" title="blog" alt="blog" src="http://dl.dropbox.com/u/529534/windchimes/icon-blog.gif"></a></td><td width="29" style="padding-bottom: 42px;> <a href="http://www.linkedin.com/groups?gid=120310" target="_blank"><img align="middle" title="linkedin" alt="linkedin" src="http://dl.dropbox.com/u/529534/windchimes/icon-linkedin.gif"></a></td><td width="29" style="padding-bottom: 42px;> <a href="http://www.facebook.com/group.php?gid=72425590275" target="_blank"><img align="middle" title="facebook" alt="facebook" src="http://dl.dropbox.com/u/529534/windchimes/icon-facebook.gif"></a></td><td width="29" style="padding-bottom: 42px;> <a href="http://twitter.com/windchimesindia" target="_blank"><img align="middle" title="twitter" alt="twitter" src="http://dl.dropbox.com/u/529534/windchimes/icon-twitter.gif"></a></td><td width="29" style="padding-bottom: 42px;> <a href="http://www.youtube.com/user/Windchimesindia" target="_blank"><img align="middle" title="Youtube" alt="Youtube" src="http://dl.dropbox.com/u/529534/windchimes/icon-youtube.gif"></a><td>

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  • jQuery Actual image diamension

    - by Mithun
    I have a 1024x768 image <span class="frame"> <img alt="Image" title="Image" src="http://localhost/zapav/site/assets/questions/D41120CA-7164-11DF-A79E-F4CE462E9D80_Green_Sea_Turtle.jpg"> </span> and the below CSS sets the image width to .frame img{ width:425px; } And the jQuery code $('.uploaded_image img').attr("width"); returns 425 How can i retrieve the actual width of the image 1024 in JavaScipt?

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  • Wordpress Template HTML CSS Layout Confusion

    - by Jess McKenzie
    I am having huge confusion with a template that I have purchased and I am trying to modify to handle a widget contact form. I am getting close with this but I have now muddled up the CSS or I have a feeling every page has a different CSS structure. The General Layout: What I Manage To Get: HTML View Source: <div id="innerright"> <div id="home" class="page"> <div id="homeslides"> <div class="welcomeslide"> <h1 class="large">Welcome</h1> </div> </div><!-- end home slides --> </div><!-- end page --> <div id="portfolio" class="page"> <div class="verticalline"> <div class="scrollprevnext"></div> </div> <div class="pageheader"> <h3><span>P</span>ortfolio</h3> </div><!--end pageheader --> <div id="portfolioscroller" class="scrollerenabledpage"> <div class="content"> <h5>Recent Work</h5> <ul class="thumb"> <li><a rel="precision_gallery" href="" title=""><img alt="" src="" /></a></li> </ul> </div> </div><!--end v scroll inner--> </div><!-- end page --> <div id="contact" class="page"> <div class="verticalline"> <div class="scrollprevnext"></div> </div> <div class="pageheader"> <h3><span>C</span>ontact</h3> </div><!--end pageheader --> <div id="contactscroller"> <h5>Get In Touch</h5> <div id="contactform">content</div> </div><!--end v scroll inner--> </div><!-- end page --> </div><!--end innerright--> CSS: CSS index.php: <!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title><?php bloginfo('name'); ?></title> <link rel="stylesheet" type="text/css" href="<?php echo get_template_directory_uri(); ?>/style.css" /> <link rel="stylesheet" type="text/css" href="<?php echo get_template_directory_uri(); ?>/fancybox/jquery.fancybox-1.3.4.css" media="screen" /> <?php // jquery will be included by wp_head function as well as scripts and styles by third party plugins wp_head(); ?> <script type="text/javascript" src="<?php echo get_template_directory_uri(); ?>/js/plugins.js"></script> <script type="text/javascript" src="<?php echo get_template_directory_uri(); ?>/js/script.js"></script> <script type="text/javascript" src="<?php echo get_template_directory_uri(); ?>/fancybox/jquery.fancybox-1.3.4.pack.js"></script> <?php // background image if one has been set via options if (function_exists('get_option_tree')) { $background_image = get_option_tree('precision_background_image'); //$background_image = ''; $background_color = get_option_tree('precision_background_color'); if ($background_color != '') { echo '<style>body { background-color:'.$background_color.'; }</style>'; } } ?> <script type="text/javascript"> jQuery(document).ready(function($) { $('.page').each(function(index, element) { $(this).css('left', index * 500); }); <?php // if background is set via the OptionTree then load it first if ($background_image != '') { ?> $.vegas({ src:'<?php echo $background_image; ?>', fade:1000, complete:function() { $("#wrapper").fadeIn(1000); $("#bgpanel").fadeIn(1000); $('#mainslide').crossSlide( { speed: 15, fade: 1 }, [ <?php echo $slides; ?> ] ) $('#homeslides').bxSlider({ mode: 'fade', auto: true, controls:false, speed:1000, pause:5000 }); } }); <?php } else { // if no background has been set then fade-in the page ?> $("#wrapper").fadeIn(1000); $("#bgpanel").fadeIn(1000); $('#mainslide').crossSlide( { speed: 15, fade: 1 }, [ //ENTER YOUR MAIN SLIDESHOW IMAGES HERE\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ <?php echo $slides; ?> ] ) $('#homeslides').bxSlider({ mode: 'fade', auto: true, controls:false, speed:1000, pause:5000 }); <?php } ?> //BX SLIDER INNER PAGE SCROLLERS//////////////////////// $('.scrollerenabledpage').each(function(index, element) { $('#' + $(this).attr('id')).bxSlider({ mode: 'vertical', easing: 'easeInOutQuint', auto: false, controls: true, prevImage:'<?php echo get_template_directory_uri(); ?>/images/up.png', nextImage:'<?php echo get_template_directory_uri(); ?>/images/down.png', infiniteLoop: false, hideControlOnEnd: true, pager: true, pagerType:'short', pagerShortSeparator:'of', speed:800, }); }); //END BX SLIDER INNER PAGE SCROLLERS///////////////// $('#submit').click(function(e) { e.preventDefault(); $('form').submit(); }); // contact form $('form').submit(function(e) { $('#main').append('<img src="<?php echo get_template_directory_uri(); ?>/images/loader.gif" class="loaderIcon" alt="Loading..." />'); $.post("<?php bloginfo('wpurl'); ?>/wp-admin/admin-ajax.php", {action:'precision_contact_form_handler', uname:$('input#uname').val(), uemail:$('input#uemail').val(), ucomments:$('textarea#ucomments').val()}, function(data) { $('#main img.loaderIcon').fadeOut(1000); if (data.status == "success") { $('#response').html("Forum has been successfully submitted."); } else { if (data.response != '') { $('#response').html(data.response); } else { $('#response').html("An error occurred while submitting the form. Please try again."); } } }, "json"); return false; }); }); //hides contact form labels when a field gets focus function initOverLabels () { if (!document.getElementById) return; var labels, id, field; labels = document.getElementsByTagName('label'); for (var i = 0; i < labels.length; i++) { if (labels[i].className == 'overlabel') { id = labels[i].htmlFor || labels[i].getAttribute('for'); if (!id || !(field = document.getElementById(id))) { continue; } labels[i].className = 'overlabel-apply'; if (field.value !== '') { hideLabel(field.getAttribute('id'), true); } field.onfocus = function () { hideLabel(this.getAttribute('id'), true); }; field.onblur = function () { if (this.value === '') { hideLabel(this.getAttribute('id'), false); } }; labels[i].onclick = function () { var id, field; id = this.getAttribute('for'); if (id && (field = document.getElementById(id))) { field.focus(); } }; } } }; function hideLabel(field_id, hide) { var field_for; var labels = document.getElementsByTagName('label'); for (var i = 0; i < labels.length; i++) { field_for = labels[i].htmlFor || labels[i].getAttribute('for'); if (field_for == field_id) { labels[i].style.textIndent = (hide) ? '-1000px' : '0px'; return true; } } } window.onload = function () { setTimeout(initOverLabels, 50); }; </script> <?php if (function_exists('get_option_tree')) { $precision_font_family_1 = get_option_tree('precision_font_family_1'); ?> <link href='http://fonts.googleapis.com/css?family=<?php echo $precision_font_family_1; ?>' rel='stylesheet' type='text/css'> <?php } ?> <style> h1, h2 { font-family:<?php echo $precision_font_family_1; ?>; } </style> </head> <body> <div id="wrapper"> <div id="innerleft"> <div id="header"> <?php if (function_exists('get_option_tree')) { $site_logo = get_option_tree('precision_site_logo'); ?> <a href="/" title="<?php bloginfo('name');?>"><img src="<?php echo $site_logo; ?>" alt="<?php bloginfo('name');?>" /></a> <?php } ?> </div><!--end header--> <?php if (function_exists('get_option_tree')) { $precision_slideshow_image = get_option_tree('precision_slideshow_image'); } ?> <ul id="nav"><!--Navigation--> <?php //instead of using wp_nav_menu, we use wp_get_nav_menu_items so that we can store the data in array and re-use it again //wp_nav_menu(array('theme_location' => 'precision-main-menu', 'container' => 'false')); $slt_menuItems = wp_get_nav_menu_items( "precision-main-menu" ); $menusItems = array(); foreach ($slt_menuItems as $slt_menuItem) { $page_title = $slt_menuItem->title; $menuItem = new stdClass; $menuItem->title = $page_title; $menuItem->page_id = $slt_menuItem->object_id; $menusItems[] = $menuItem; ?> <li id="<?php echo strtolower($page_title); ?>nav"><a href="#<?php echo strtolower($page_title); ?>"><?php echo $page_title; ?></a></li> <?php } ?> </ul> <div id="socialMedia"> <ul class="social"> <?php if (function_exists('get_option_tree')) { $twitter_link = get_option_tree('precision_twitter_link'); $facebook_link = get_option_tree('precision_facebook_link'); $gplus_link = get_option_tree('precision_gplus_link'); $delicious_link = get_option_tree('precision_delicious_link'); $flickr_link = get_option_tree('precision_flickr_link'); $vimeo_link = get_option_tree('precision_vimeo_link'); $youtube_link = get_option_tree('precision_youtube_link'); $linkedin_link = get_option_tree('precision_linkedin_link'); ?> <!-- start linkedin icon --> <?php if($linkedin_link != ''){ ?> <li><a href="<?php echo $linkedin_link;?>" title="Follow <?php bloginfo('name'); ?> on Linkedin"><img src="<?php echo get_template_directory_uri();?>/images/social-icons/linkedin.png" width="49" height="64" alt="<?php bloginfo('name'); ?> Linkedin"/></a><li> <?php } ?> <!-- end linkedin icon --> <!--start twitter icon--> <?php if ($twitter_link != '') { ?> <li><a href="<?php echo $twitter_link; ?>" title="Follow <?php bloginfo('name'); ?> on Twitter"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/twitter.png" width="49" height="64" alt="<?php bloginfo('name'); ?> Twitter" /></a></li> <?php } ?> <!--end twitter icon--> <!--start facebook icon--> <?php if ($facebook_link != '') { ?> <li><a href="<?php echo $facebook_link; ?>" title="Follow <?php bloginfo('name'); ?> on Facebook"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/facebook.png" width="49" height="64" alt="<?php bloginfo('name'); ?> Facebook" /></a></li> <?php } ?> <!--end facebook icon--> <!--start google plus icon--> <?php if ($gplus_link != '') { ?> <li><a href="<?php echo $gplus_link; ?>"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/google_plus.png" width="16" height="16" alt="google+" /></a></li> <?php } ?> <!--end google plus icon--> <!--start delicious icon--> <?php if ($delicious_link != '') { ?> <li><a href="<?php echo $delicious_link; ?>"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/delicious.png" width="16" height="16" alt="delicious" /></a></li> <?php } ?> <!--end delicious icon--> <!--start flickr icon--> <?php if ($flickr_link != '') { ?> <li><a href="<?php echo $flickr_link; ?>"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/flickr.png" width="16" height="16" alt="flickr" /></a></li> <?php } ?> <!--end flickr icon--> <!--start vimeo icon--> <?php if ($vimeo_link != '') { ?> <li><a href="<?php echo $vimeo_link; ?>"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/vimeo.png" width="16" height="16" alt="vimeo" /></a></li> <?php } ?> <!--end vimeo icon--> <!--start youtube icon--> <?php if ($youtube_link != '') { ?> <li><a href="<?php echo $youtube_link; ?>"><img src="<?php echo get_template_directory_uri(); ?>/images/social-icons/youtube.png" width="16" height="16" alt="youtube" /></a></li> <?php } ?> <!--end youtube icon--> <?php } ?> </ul> </div> </div><!--end innerleft--> <div id="innerright"> <?php if (function_exists('get_option_tree')) { $precision_home_page_option = get_option_tree('precision_home_page'); $precision_home_page = strtolower(get_the_title($precision_home_page_option)); if ($precision_home_page == '') { $precision_home_page = 'home'; } $precision_contact_page_option = get_option_tree('precision_contact_page'); $precision_contact_page = strtolower(get_the_title($precision_contact_page_option)); if ($precision_contact_page == '') { $precision_contact_page = 'contact'; } } foreach ($menusItems as $menuItem) { ?> <div id="<?php echo strtolower($menuItem->title); ?>" class="page"> <?php if (strtolower($menuItem->title) == $precision_home_page) { ?> <div id="homeslides"> <?php $page_data = get_page($menuItem->page_id); $content = apply_filters('the_content', $page_data->post_content); echo $content; ?> </div><!-- end home slides --> <?php } else { ?> <div class="verticalline"> <div class="scrollprevnext"></div> </div> <div class="pageheader"> <h3><span><?php echo substr($menuItem->title, 0, 1); ?></span><?php echo substr($menuItem->title, 1); ?></h3> </div><!--end pageheader --> <?php $classes = ''; if (strtolower($menuItem->title) == $precision_contact_page) { ?> <div id="<?php echo strtolower($menuItem->title); ?>scroller"> <?php $page_data = get_page($menuItem->page_id); $content = apply_filters('the_content', $page_data->post_content); echo $content; ?> </div><!--end v scroll inner--> <?php } else { $classes = 'scrollerenabledpage'; ?> <div id="<?php echo strtolower($menuItem->title); ?>scroller" class="<?php echo $classes; ?>"> <?php $page_data = get_page($menuItem->page_id); $content = apply_filters('the_content', $page_data->post_content); echo $content; ?> </div><!--end v scroll inner--> <?php } } ?> </div><!-- end page --> <?php } ?> </div><!--end innerright--> <div id="footer"> <p>&copy; <a href="/"><?php bloginfo('name');?></a> | <?php echo date('Y');?></p> </div> </div><!--end wrapper--> </div> <!--Live Preview--> </body> </html>

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  • pass objective c object and primitive type into a void *

    - by user674669
    I want to pass 2 variables: UIImage * img int i into another method that only takes a (void *) I tried making a C struct containing both img and i struct MyStruct { UIImage *img; int i; } but xcode gives me an error saying "ARC forbids Objective-C objects in structs or unions" The next thing I tried is to write an objective-c class MyStruct2 containing img and i, alloc-initing an instance of it and typecasting it as (__bridge void*) before passing it to the method. Seems little involved for my use case. Seems like there should be a better way. What's the simplest way to achieve this? Thank you. Edit based on comments: I have to use void * as it is required by the UIView API. I created a selector as mentioned by UIVIew API + (void)setAnimationDidStopSelector:(SEL)selector Please see documentation for setAnimationDidStopSelector at http://developer.apple.com/library/ios/#documentation/uikit/reference/UIView_Class/UIView/UIView.html . It says ... The selector should be of the form: - (void)animationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context I want to pass both img and i into the (void *)context argument.

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  • How can I set drawable to a ListView in android

    - by sxingfeng
    I am writing a app for android 1.5. I want to use a complex listview to display my data. I want to show a ImageView of a drawable object in my List item. I learned from a demo: ------> listData.put("Img", listData.put("Img", R.drawable.XXX)); listData.put("Time", "100"); listItems.add(listData); It can display correctly, however, I want to change Img at runtime, The image maybe generated at run-time, so I change the code as follow, but it falls. Can anyone help me ? many thanks! protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.item_list); itemListView = (ListView) findViewById(R.id.listview); ArrayList<HashMap<String, Object>> listItems = new ArrayList<HashMap<String, Object>>(); for(int i = 0;i <XXX.size(); ++i) { HashMap<String, Object> listData = new HashMap<String, Object>(); ---------> 1) listData.put("Img", new Drawable(XXX)); 2) listData.put("Time", "100"); 3) listItems.add(listData); } SimpleAdapter listItemAdapter = new SimpleAdapter(this, listItems, R.layout.listitem, new String[] { "Img", "Time"}, new int[] { R.id.listitem_img, R.id.listitem_time }); itemListView.setAdapter(listItemAdapter); listitem.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:paddingBottom="4dip" android:paddingLeft="12dip" android:paddingRight="12dip"> <ImageView android:paddingTop="12dip" android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/listitem_img" /> <TextView android:layout_height="wrap_content" android:textSize="20dip" android:layout_width="wrap_content" android:id="@+id/listitem_time" /> </LinearLayout>

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  • Setting an XAML Window always on top (but no TopMost property)

    - by Brian Scherady
    I am developing an application based on OptiTrack SDK (from NaturalPoint). I need to run the application window as "Always on Top". The window is designed in XAML and is controled in the class "CameraView" but it does not seem to include a "TopMost" property or equivalent. Attached are the code of "CameraView.xaml.cs" and the code of "CameraView.xaml" that are part of OptiTrack SDK (NaturalPoint) called "Single_Camera_CSharp_.NET_3.0". One could expect the class CameraView to contain properties or members to set the position of the window on the screen or to set it to TopMost but as far as searched I found nothing. I wonder what I should do. Thank you, Brian ================ "CameraView.xaml.cs" using System; using System.IO; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Navigation; using System.Drawing.Imaging; using System.Drawing.Drawing2D; using System.Windows.Threading; namespace TestProject { public partial class CameraView { private const int NP_OPTION_OBJECT_COLOR_OPTION = 3; private const int NP_OPTION_VIDEO_TYPE = 48; private const int NP_OPTION_NUMERIC_DISPLAY_ON = 71; private const int NP_OPTION_NUMERIC_DISPLAY_OFF = 72; private const int NP_OPTION_FETCH_RLE = 73; private const int NP_OPTION_FETCH_GRAYSCALE = 74; private const int NP_OPTION_FRAME_DECIMATION = 52; private const int NP_OPTION_INTENSITY = 50; private const int NP_OPTION_SEND_EMPTY_FRAMES = 41; private const int NP_OPTION_THRESHOLD = 5; private const int NP_OPTION_EXPOSURE = 46; private const int NP_OPTION_SEND_FRAME_MASK = 73; private const int NP_OPTION_TEXT_OVERLAY_OPTION = 74; // public delegate void OnCameraViewCreate(CameraView camera); // public static OnCameraViewCreate onCameraViewCreate; private System.Drawing.Bitmap raw = new System.Drawing.Bitmap(353, 288, System.Drawing.Imaging.PixelFormat.Format32bppArgb); private int mFrameCounter; private int mDisplayCounter; private DispatcherTimer timer1 = new DispatcherTimer(); private bool mVideoFrameAvailable = false; private int mNumeric = -1; private bool mGreyscale = false; private bool mOverlay = true; public CameraView() { this.InitializeComponent(); timer1.Interval = new TimeSpan(0, 0, 0, 0, 10); timer1.Tick += new EventHandler(timer1_Tick); } public int Numeric { get { return mNumeric; } set { mNumeric = value % 100; if (mNumeric = 0) { if (Camera != null) Camera.SetOption(NP_OPTION_NUMERIC_DISPLAY_ON, value % 100); } } } private bool CameraRunning = false; private OptiTrack.NPCamera mCamera; public OptiTrack.NPCamera Camera { get { return mCamera; } set { if (mCamera == value) return; //== Don't do anything if you're assigning the same camera == if (mCamera != null) { //== Shut the selected camera down ==<< if (CameraRunning) { CameraRunning = false; mCamera.Stop(); mCamera.FrameAvailable -= FrameAvailable; } } mCamera = value; if (mCamera == null) { mNumeric = -1; } else { serialLabel.Content = "Camera "+mCamera.SerialNumber.ToString(); //mNumeric.ToString(); } } } private void FrameAvailable(OptiTrack.NPCamera Camera) { mFrameCounter++; try { OptiTrack.NPCameraFrame frame = Camera.GetFrame(0); int id = frame.Id; if (CameraRunning) { GetFrameData(Camera, frame); } frame.Free(); } catch (Exception) { int r = 0; r++; } } private void GetFrameData(OptiTrack.NPCamera camera, OptiTrack.NPCameraFrame frame) { BitmapData bmData = raw.LockBits(new System.Drawing.Rectangle(0, 0, raw.Width, raw.Height), ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb); int stride = bmData.Stride; System.IntPtr bufferPtr = bmData.Scan0; unsafe { byte* buffer = (byte*)(void*)bufferPtr; camera.GetFrameImage(frame, bmData.Width, bmData.Height, bmData.Stride, 32, ref buffer[0]); } raw.UnlockBits(bmData); mVideoFrameAvailable = true; } private void timer1_Tick(object sender, EventArgs e) { if (CameraRunning && mVideoFrameAvailable) { mVideoFrameAvailable = false; cameraImage.Source = Img(raw); mDisplayCounter++; } } private System.Windows.Media.ImageSource Img(System.Drawing.Bitmap img) { System.Drawing.Imaging.BitmapData bmData = img.LockBits(new System.Drawing.Rectangle(0, 0, img.Width, img.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppPArgb); System.Windows.Media.Imaging.BitmapSource bitmap = System.Windows.Media.Imaging.BitmapSource.Create( img.Width, img.Height, 96, 96, PixelFormats.Bgra32, System.Windows.Media.Imaging.BitmapPalettes.WebPalette, bmData.Scan0, bmData.Stride * bmData.Height, bmData.Stride); img.UnlockBits(bmData); return bitmap; } private void startStopButton_Click(object sender, RoutedEventArgs e) { if (CameraRunning) StopCamera(); else StartCamera(); } public void StartCamera() { if (Camera != null) { mFrameCounter = 0; mDisplayCounter = 0; Camera.FrameAvailable += FrameAvailable; Camera.SetOption(NP_OPTION_VIDEO_TYPE, 0); Camera.SetOption(NP_OPTION_FRAME_DECIMATION, 1); Camera.SetOption(NP_OPTION_INTENSITY, 0); Camera.SetOption(NP_OPTION_EXPOSURE, 10); Camera.SetOption(NP_OPTION_THRESHOLD, 50); Camera.SetOption(NP_OPTION_OBJECT_COLOR_OPTION, 0); SetOverlayOption(); SetGreyscaleOption(); timer1.Start(); Camera.Start(); CameraRunning = true; this.Numeric = mNumeric; startStopButton.Content = "Stop Camera"; } } private void SetGreyscaleOption() { if(mGreyscale) Camera.SetOption(NP_OPTION_VIDEO_TYPE, 1); else Camera.SetOption(NP_OPTION_VIDEO_TYPE, 0); } private void SetOverlayOption() { if(mOverlay) Camera.SetOption(NP_OPTION_TEXT_OVERLAY_OPTION, 255); else Camera.SetOption(NP_OPTION_TEXT_OVERLAY_OPTION, 0); } public void StopCamera() { if (Camera != null) { Camera.Stop(); timer1.Stop(); CameraRunning = false; Camera.FrameAvailable -= FrameAvailable; Camera.SetOption(NP_OPTION_NUMERIC_DISPLAY_OFF, 0); startStopButton.Content = "Start Camera"; } } private void greyscaleButton_Click(object sender, RoutedEventArgs e) { if(mGreyscale) mGreyscale = false; else mGreyscale = true; SetGreyscaleOption(); } private void OverlayButton_Click(object sender, RoutedEventArgs e) { if(mOverlay) mOverlay = false; else mOverlay = true; SetOverlayOption(); } private void exposureSlider_ValueChanged(object sender, RoutedEventArgs e) { if (mCamera!=null) { mCamera.SetOption(NP_OPTION_EXPOSURE, (int) this.exposureSlider.Value); } } private void thresholdSlider_ValueChanged(object sender, RoutedEventArgs e) { if (mCamera != null) { mCamera.SetOption(NP_OPTION_THRESHOLD, (int)this.thresholdSlider.Value); } } private void optionsButton_Click(object sender, RoutedEventArgs e) { if (!propertyPanel.IsVisible) propertyPanel.Visibility = Visibility.Visible; else propertyPanel.Visibility = Visibility.Collapsed; } } } ================ "CameraView.xaml"

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  • jQuery DOM element creation vs innerHTML

    - by Mohammad
    While having one of my questions answered, cletus mentioned that when creating elements in jQuery it's better to use direct DOM element creation, instead of innerHTML. I tried googling it but I wasn't able to find a good article with comparisons. I've provided this code bellow as an example and I was wondering if someone could help me rewrite it in direct DOM element creation form in hope that i would also learn the difference afterwards. var img = $(this); img.append('<p class="cap"><a href="'+img.parent().attr('href')+'">'+ img.attr('title')+'</p></a>'); Thanks so much.

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  • Java: Reading images and displaying as an ImageIcon

    - by 11helen
    I'm writing an application which reads and displays images as ImageIcons (within a JLabel), the application needs to be able to support jpegs and bitmaps. For jpegs I find that passing the filename directly to the ImageIcon constructor works fine (even for displaying two large jpegs), however if I use ImageIO.read to get the image and then pass the image to the ImageIcon constructor, I get an OutOfMemoryError( Java Heap Space ) when the second image is read (using the same images as before). For bitmaps, if I try to read by passing the filename to ImageIcon, nothing is displayed, however by reading the image with ImageIO.read and then using this image in the ImageIcon constructor works fine. I understand from reading other forum posts that the reason that the two methods don't work the same for the different formats is down to java's compatability issues with bitmaps, however is there a way around my problem so that I can use the same method for both bitmaps and jpegs without an OutOfMemoryError? (I would like to avoid having to increase the heap size if possible!) The OutOfMemoryError is triggered by this line: img = getFileContentsAsImage(file); and the method definition is: public static BufferedImage getFileContentsAsImage(File file) throws FileNotFoundException { BufferedImage img = null; try { ImageIO.setUseCache(false); img = ImageIO.read(file); img.flush(); } catch (IOException ex) { //log error } return img; } The stack trace is: Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:58) at java.awt.image.ComponentSampleModel.createDataBuffer(ComponentSampleModel.java:397) at java.awt.image.Raster.createWritableRaster(Raster.java:938) at javax.imageio.ImageTypeSpecifier.createBufferedImage(ImageTypeSpecifier.java:1056) at javax.imageio.ImageReader.getDestination(ImageReader.java:2879) at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:925) at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:897) at javax.imageio.ImageIO.read(ImageIO.java:1422) at javax.imageio.ImageIO.read(ImageIO.java:1282) at framework.FileUtils.getFileContentsAsImage(FileUtils.java:33)

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  • correcting fisheye distortion programmatically

    - by Will
    I have some points that describe positions in a picture taken with a fisheye lens. I've found this description of how to generate a fisheye effect, but not how to reverse it. How do you calculate the radial distance from the centre to go from fisheye to rectilinear? My function stub looks like this: Point correct_fisheye(const Point& p,const Size& img) { // to polar const Point centre = {img.width/2,img.height/2}; const Point rel = {p.x-centre.x,p.y-centre.y}; const double theta = atan2(rel.y,rel.x); double R = sqrt((rel.x*rel.x)+(rel.y*rel.y)); // fisheye undistortion in here please //... change R ... // back to rectangular const Point ret = Point(centre.x+R*cos(theta),centre.y+R*sin(theta)); fprintf(stderr,"(%d,%d) in (%d,%d) = %f,%f = (%d,%d)\n",p.x,p.y,img.width,img.height,theta,R,ret.x,ret.y); return ret; } Alternatively, I could somehow convert the image from fisheye to rectilinear before finding the points, but I'm completely befuddled by the OpenCV documentation. Is there a straightforward way to do it in OpenCV, and does it perform well enough to do it to a live video feed?

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  • Text box creates gap when floated left in IE7

    - by Sixfoot Studio
    Hi, I've got a left rounded corner box - textbox - right rounded corner box which all make up part of a search box. All's well in FF, Chrome, IE8 but not IE7. I've checked it using the debug tool and and I have tried a number of options, none of which want to work at the moment, so I am hoping someone might know what this issue (bug) might be please? Here's a snippet of my code: <div class="roundBox4"> <img src="../App_Themes/MyChoice2010/Images/reality-box-top.gif" width="228" height="8" /><img src="../App_Themes/MyChoice2010/Images/reality-box-locate.gif" width="228" height="49" /> <asp:ContentPlaceHolder ID="Box4Content" runat="server"> </asp:ContentPlaceHolder> <div class="locateABroker"> <img src="../App_Themes/MyChoice2010/Images/locate-broker-left.gif" class="locateBrokerLeft" height="19" width="3" /><asp:TextBox ID="TextBox1" CssClass="locateBrokerCenter" runat="server"></asp:TextBox><img src="../App_Themes/MyChoice2010/Images/locate-broker-right.gif" height="19" width="3" class="locateBrokerRight" /> <a href="" class="locateBrokerSubmit">Submit</a><img src="../App_Themes/MyChoice2010/Images/box-arrow.gif" class="linkArrow" width="8" height="14" /> </div>

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  • Cropping image with ImageScience

    - by fl00r
    ImageScience is cool and light. I am using it in my sinatra app. But I can't understand how can I crop image with not square form and how can I make thumbnail with two dimensions. As I found on ImageScience site: ImageScience.with_image(file) do |img| img.cropped_thumbnail(100) do |thumb| thumb.save "#{file}_cropped.png" end img.thumbnail(100) do |thumb| thumb.save "#{file}_thumb.png" end img.resize(100, 150) do |img2| img2.save "#{file}_resize.png" end end I can crop thumb and resize thumb only with ONE dimension but I want to use two, as in RMagick. For example I want to crop 100x200px box from image, or I want to make thumbnail with width or height not bigger then 300 (width) or 500 (height) pixels.

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  • How to loop through LI items in UL, get specific attributes, and pass them via $.ajax data

    - by Ahmed Fouad
    Here is my HTML code: <ul id="gallery"> <li id="attachment-32" class="featured"><a href="..." title=""><img src="..." alt="" /></a></li> <li id="attachment-34"><a href="..." title=""><img src="..." alt="" /></a></li> <li id="attachment-38"><a href="..." title=""><img src="..." alt="" /></a></li> <li id="attachment-64"><a href="..." title=""><img src="..." alt="" /></a></li> <li id="attachment-75"><a href="..." title=""><img src="..." alt="" /></a></li> <li></li> </ul> Here is my sample ajax request: $.ajax({ url: '/ajax/upload.php', type: 'POST', data: { ... }, success: function(data){ } }); Here is what I want to achieve. How to get the attachment number in ID attribute for every LI inside the gallery UL only when an ID attr is there and pass them via ajax data in this way: { attached : '32,34,38,64,75' } if there is a better way of doing this let me know I want to pass the list items which contain attachments to process. How to get the list item LI which has class of featured e.g. { featured_img : .. } and pass the attachment ID number if featured LI exists, and if none of list items is featured pass featured_img with 0. So i know how to process it via php in the request. Any help is appreciated. Thank you.

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  • CSS: Horizontal scrolling with overflow-x

    - by ams
    Hello fellow programmers, I was wondering if there still isn't a good way to get a div to stretch and scroll horizontally, according to the images inside. -After all, it is 2011 now! The mega-width does the trick, but leaves an empty mega-space if not filled with images. If filled too much, images don't display. Same for the jQuery. The situation below is the best I can do after hours of Googling, but it isn't reliable enough. Thanks for your time. Ams * { margin:0; padding:0; } #one { width:200px; height:250px; overflow-x:auto; overflow-y:hidden; } #two { width:10000em; } #two img { float:left; } $(document).ready(function(){ var total=0; $(".calc").each(function(){ total += $(this).outerWidth(true); }); $("#two").css('width',total); alert(total); }); <div id="one"> <div id="two"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> <img src="images/testimage3.jpg" width="480" height="192" class="calc"> </div> </div>

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  • ios saving uilabel and uiimageview as uiimage

    - by Ashraf Hussein
    I'm trying to add text to an image bu adding a uilabel as subview to a uiimageview I already did that but I want to save them as an image I'm using render in context but it's not working here's my code UIImage * img = [UIImage imageNamed:@"IMG_1650.JPG"]; float x = (img.size.width/imageView.frame.size.width) * touchPoint.x; float y = (img.size.height/imageView.frame.size.height) * touchPoint.y; CGPoint tpoint = CGPointMake(x, y); UIFont *font = [UIFont boldSystemFontOfSize:30]; context = UIGraphicsGetCurrentContext(); UIGraphicsBeginImageContextWithOptions(img.size, YES, 0.0); [[UIColor redColor] set]; for (UIView * view in [imageView subviews]){ [view removeFromSuperview]; } UILabel * lbl = [[UILabel alloc]init]; [lbl setText:txt]; [lbl setBackgroundColor:[UIColor clearColor]]; CGSize sz = [txt sizeWithFont:lbl.font]; [lbl setFrame:CGRectMake(touchPoint.x, touchPoint.y, sz.width, sz.height)]; lbl.transform = CGAffineTransformMakeRotation( -M_PI/4 ); [imageView addSubview:lbl]; [imageView bringSubviewToFront:lbl]; [imageView setImage:img]; [imageView.layer renderInContext:UIGraphicsGetCurrentContext()]; [lbl.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage * nImg = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); UIImageWriteToSavedPhotosAlbum(nImg, nil, nil, nil); THX

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  • What would I use to remove escaped html from large sets of data.

    - by Elizabeth Buckwalter
    Our database is filled with articles retrieved from RSS feeds. I was unsure of what data I would be getting, and how much filtering was already setup (WP-O-Matic Wordpress plugin using the SimplePie library). This plugin does some basic encoding before insertion using Wordpress's built in post insert function which also does some filtering. I've figured out most of the filters before insertion, but now I have whacko data that I need to remove. This is an example of whacko data that I have data in one field which the content I want in the front, but this part removed which is at the end: <img src="http://feeds.feedburner.com/~ff/SoundOnTheSound?i=xFxEpT2Add0:xFbIkwGc-fk:V_sGLiPBpWU" border="0"></img> <img src="http://feeds.feedburner.com/~ff/SoundOnTheSound?d=qj6IDK7rITs" border="0"></img> &lt;img src=&quot;http://feeds.feedburner.com/~ff/SoundOnTheSound?i=xFxEpT2Add0:xFbIkwGc-fk:D7DqB2pKExk&quot; Notice how some of the images are escape and some aren't. I believe this has to do with the last part being cut off so as to be unrecognizable as an html tag, which then caused it to be html endcoded. Another field has only this which is now filtered before insertion, but I have to get rid of the others: &lt;img src=&quot;http://farm3.static.flickr.com/2183/2289902369_1d95bcdb85.jpg&quot; alt=&quot;post_img&quot; width=&quot;80&quot; (all examples are on one line, but broken up for readability) Question: What is the best way to work with the above escaped html (or portion of an html tag)? I can do it in Perl, PHP, SQL, Ruby, and even Python. I believe Perl to be the best at text parsing, so that's why I used the Perl tag. And PHP times out on large database operations, so that's pretty much out unless I wanted to do batch processing and what not. PS One of the nice things about using Wordpress's insert post function, is that if you use php's strip_tags function to strip out all html, insert post function will insert <p> at the paragraph points. Let me know if there's anything more that I can answer. Some article that didn't quite answer my questions. (http://stackoverflow.com/questions/2016751/remove-text-from-within-a-database-text-field) (http://stackoverflow.com/questions/462831/regular-expression-to-escape-html-ampersands-while-respecting-cdata)

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  • Many DIVs inside parent DIV, CSS height issue

    - by Benjamin
    Hi everyone, I am putting together a dynamic photo gallery and getting stuck trying to place thumbnails. Basically I am trying to place each thumbnail and caption in its own DIV, floated to the left. The thumbnails are working just as I want them to but for some reason the parent DIV refuses to cover the height of the thumbnail area. Here is the CSS I am using.. #galleryBox { width: 650px; background: #fff; margin: auto; padding: 5px; text-align: center; } .item { display: block; margin: 10px; padding: 10px; float: left; background: #353535; min-width: 120px; } .label { display: block; color: #fff; } I have tried height: auto and that hasn't done anything. Here is what I am trying to style: <div id="galleryBox" class="ui-corner-all"> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> <div class="item ui-corner-all"> <img src="http://tapp-essexvfd.org/images/ajax-loader.gif" alt="test"/><br/> <p><span class="label">Testing</span></p> </div> </div> Thanks!

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  • text not wrapping around some floated images, wraps in IE & FF but not chrome, safari

    - by Hartley
    This is unlike anything I've read about and I've been totally scratching my head for the last few hours trying to figure out what's going on. I have a hand-coded site @ hartbro.com Part of the site is a blog, in which I include pictures. Here's the HTML code around one of the images that's causing trouble. <a href="blogcontent/090811.jpg" class="img"> <img src="blogcontent/090811.jpg" alt="Downed trees" width="25%" class="floatright" /></a> The storm left as quickly as it came. The sky cleared up and we were glad that the oppressive heat had let up. What I've noticed is that, on some of the blog entries that include more than one image, the 2nd image isn't really floating like its supposed to be, with the text wrapping around it. I figure its got to be some sort of conflict with some CSS that I have that's causing the problem but I just can't figure out what it is. I don't understand how it works in FF & IE but not Chrome or Safari?? Here's all of the relevant CSS, let me know if you need anything else. Thanks in advance. img{ margin:10px; } img.floatleft{ float:left; } img.floatright{ float:right; } edit: here's an screen-shot of what's happening.

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  • Parent CSS (jQuery)

    - by Glister
    There is <dl> with padding-top <dl style="padding-top: 150px;"> <dt>text</dt> <dd><img width="150" height="150" src="..." /></dd> <dt>text 2</dt> <dd><img width="150" height="250" src="..." /></dd> <dt>text 3</dt> <dd><img width="150" height="350" src="..." /></dd> </dl> The difference between images - height. Trying to write a script, which will change a height of the <dl>, when <dd> is clicked. Height should be taken from the height attribute of the dd img. Tryed this, but it doesn't work: $("#posters dd").click(function(){ var parent_padding = $(this).find("img").attr("height"); $(this).parent().css({"padding-top":parent_padding}); }); Thanks.

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  • image hover animate

    - by Ryan Max
    Hello. I have the following jQuery script that makes an orange transparent hover effect cover the image when it's rolled over. How do I make it so this script will animate in and out (with a fade?) $(document).ready(function() { $('#gallery a').bind('mouseover', function(){ $(this).parent('li').css({position:'relative'}); var img = $(this).children('img'); $('<div />').text(' ').css({ 'height': img.height(), 'width': img.width(), 'background-color': 'orange', 'position': 'absolute', 'top': 0, 'left': 0, 'opacity': 0.5 }).bind('mouseout', function(){ $(this).remove(); }).insertAfter(this); }); });

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  • Need a explanation for the matlab code snippet

    - by Mask
    %# load a grayscale image img = imread('coins.png'); %# display the image figure imshow(img,[]); %# false-color colormap('hot') The above code is from here: http://stackoverflow.com/questions/2592755/infrared-image-processing-in-matlab/2592793#2592793 But I don't understand how figure(What's the difference with/without it?) and colormap(How does it affect the already shown img?) work?

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  • XSL Template - reducing replication

    - by Chris
    Hey Sorry about the extremely vague question title (any suggestions for improvements welcome) I have an XSL document that, currently, has lots of replication that I want to reduce. Here is the following XML snippet I am working with <Unit Status="alive"> I am currently using the following XSL to show images based on the status of the Unit <xsl:choose> <xsl:when test="@Status = 'alive'"> <img src="/web/resources/graphics/accept.png" /> </xsl:when> <xsl:when test="@Status = 'missingUnit'"> <img src="/web/resources/graphics/error.png" /> </xsl:when> <xsl:when test="@Status = 'missingNode'"> <img src="/web/resources/graphics/exclamation.png" /> </xsl:when> <xsl:when test="@Status = 'unexpectedUnit'"> <img src="/web/resources/graphics/exclamation_blue.png" /> </xsl:when> <xsl:otherwise> <!-- Should never get here --> <img src="/web/resources/graphics/delete.png" /> </xsl:otherwise> </xsl:choose> How do I put this code in a template or stylesheet that will allow me to stop copying / pasting this everywhere. Thanks

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  • Inverted colours in tiff to PDF conversion

    - by spiderdijon
    I'm sure I'm making some kind of silly mistake here, but when converting a tiff file to PDF, the colours become reversed. I can't figure out why. Here's my code: PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("Image.pdf", FileMode.Create)); System.Drawing.Bitmap bm = new System.Drawing.Bitmap(@"C:\Temp\338814-00.tif"); int total = bm.GetFrameCount(FrameDimension.Page); document.Open(); PdfContentByte cb = writer.DirectContent; for (int k = 0; k < total; ++k) { bm.SelectActiveFrame(FrameDimension.Page, k); MemoryStream ms = new MemoryStream(); bm.Save(ms, ImageFormat.Tiff); Image img = Image.GetInstance(ms.ToArray()); img.ScalePercent(72f / (float)img.DpiX * 100); img.SetAbsolutePosition(0, 0); cb.AddImage(img); document.NewPage(); } document.Close(); Thanks.

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  • Why does my Ajax function returns my entire code?

    - by JDelage
    I'm playing with sample code from the book "Head first Ajax". Here are the salient pieces of code: Index.php - html piece: <body> <div id="wrapper"> <div id="thumbnailPane"> <img src="images/itemGuitar.jpg" width="301" height="105" alt="guitar" title="itemGuitar" id="itemGuitar" onclick="getDetails(this)"/> <img src="images/itemShades.jpg" alt="sunglasses" width="301" height="88" title="itemShades" id="itemShades" onclick="getDetails(this)" /> <img src="images/itemCowbell.jpg" alt="cowbell" width="301" height="126" title="itemCowbell" id="itemCowbell" onclick="getDetails(this)" /> <img src="images/itemHat.jpg" alt="hat" width="300" height="152" title="itemHat" id="itemHat" onclick="getDetails(this)" /> </div> <div id="detailsPane"> <img src="images/blank-detail.jpg" width="346" height="153" id="itemDetail" /> <div id="description"></div> </div> </div> </body> Index.php - script: function getDetails(img){ var title = img.title; request = createRequest(); if (request == null) { alert("Unable to create request"); return; } var url= "getDetails.php?ImageID=" + escape(title); request.open("GET", url, true); request.onreadystatechange = displayDetails; request.send(null); } function displayDetails() { if (request.readyState == 4) { if (request.status == 200) { detailDiv = document.getElementById("description"); detailDiv.innerHTML = request.responseText; }else{ return; } }else{ return; } request.send(null); } And Index.php: <?php $details = array ( 'itemGuitar' => "<p>Pete Townshend once played this guitar while his own axe was in the shop having bits of drumkit removed from it.</p>", 'itemShades' => "<p>Yoko Ono's sunglasses. While perhaps not valued much by Beatles fans, this pair is rumored to have been licked by John Lennon.</p>", 'itemCowbell' => "<p>Remember the famous \"more cowbell\" skit from Saturday Night Live? Well, this is the actual cowbell.</p>", 'itemHat' => "<p>Michael Jackson's hat, as worn in the \"Billie Jean\" video. Not really rock memorabilia, but it smells better than Slash's tophat.</p>" ); if (isset($_REQUEST['ImageID'])){echo $details[$_REQUEST['ImageID']];} ?> All this code does is that when someone clicks on a thumbnail, a corresponding text description appears on the page. Here is my question. I have tried to bring the getDetails.php code inside Index.php, and modify the getDetails function so that the var url be "Index.php?ImageID="... . When I do that, I get the following problem: the function does not display the snippet of text in the array, as it should. Instead it reproduces the entire code - the webpage, etc - and then at the bottom the expected snippet of text. Why is that?

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