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• computing matting Laplacian matrix of an Image

  - by ajith

  hi everyone, i need to compute Laplacian Matrix-L for an image(nXn) in opencv...computing goes as follows.......... dij - 1/|wk|{[1+1/(e/|wk|+s2)][(Ii-µk)*(Ij -µk)]}.... for all(i,j)?wk,summing over k yields (i,j)th element of L. where Here dij is the Kronecker delta,µk and s2k are the mean & variance of intensities in the window wk around k,and |wk| is the number of pixels in this window.wk is 3X3 window... here am not clear about 2 things... 1.what ll be the size of L?nXn or (nXn)X(nXn)?? 2.how to select Ii and Ij separately in 2D image?

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• MVP on Asp.Net WebForms

  - by Nicolas Irisarri

  I'm not clear about this.... When having a gridview on the View, is the controller who has to set up the Data source, columns, etc? or I just have to expose the DataBinding stuff, fire it from the controller and let the html/codebehind on the view handle all the rendering and wiring up? To be more precise: on the view should I have private GridView _gv public _IList<Poco> Source { get {_gv.DataSource;} set {_gv.DataSource = value; _gv.DataBind();} } Or should it be (from http://stackoverflow.com/questions/153222/mvp-pattern-passive-view-and-exposing-complex-types-through-iview-asp-net-web) private GridView _datasource; public DataSource { get { return _datasource; } set { _datasource = value; _datasource.DataBind(); } } Maybe I'm having it all wrong .... Where can I find an example that is not a "Hello world" example on MVP for ASP.Net???

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• android customize gallery focus problem

  - by Faisal khan

  Gallery With reference to the following link http://www.anddev.org/novice-tutorials-f8/a-android-widget-gallery-example-t332-60.html In above link they are actually animating selected item of the gallery but i want to change the picture when it is selected, for that i am having following code. Problem is when i use roller ball to scroll gallery from left to right or right to left to right after scroll on image focus automatically shift to next widget. public class SizingGallery extends Gallery{ public SizingGallery(Context context, AttributeSet attrs) { super(context, attrs); } @Override protected boolean getChildStaticTransformation(View child, Transformation t) { t.clear(); ImageView selectedChild = (ImageView) getSelectedView(); ImageView iv = (ImageView) child; BrowseMapCategoryRow cr = (BrowseMapCategoryRow) iv.getTag(); //Following line change the image resource that causing defocus gallery iv.setImageResource((iv == selectedChild)?cr.getSelectedImgSrc():cr.getUnSelectedImgSrc()); return true; } }

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• Dumping mod_perlified variables--what's the local namespace?

  - by Kev

  I have a mod_perl script: use strict; use warnings FATAL => 'all'; use 5.010001; my $face = 'ugly'; use Data::Dump qq(pp); die pp($ModPerl::ROOT::ModPerl::Registry::C_3a_www_test_2epl::face); It dies undef at C:/www/test.pl line 8. I was expecting "ugly" at C:/www/test.pl line 8. If instead I die pp(%ModPerl::ROOT::ModPerl::Registry::C_3a_www_test_2epl::); ...after restarting the service to clear any cached variables, face is not even listed. I could have sworn this code was working the last time I used it...I wrote a whole die hook around this way of naming local variables so that I could get at certain local variables to dump debug information. What's the local namespace?

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• Setting background views depending on user settings

  - by munchine

  I've got an app where the background needs to be set depending on user preference. The user can change this at any time via settings tab. I've got it working by checking NSUserDefaults in viewWillAppear and setting self.view.backgroundColor. This is really clunky. The right approach (I thought) is to set the background in the root view and for every views that gets on the stack inherit the background. So in viewDidLoad, I've got self.view.backgroundColor = [UIColor clearColor]; I would have thought this should work. But all I get is a clear background. Any guidance is greatly appreciated.

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• Application with two UITabBarControls

  - by kovpas

  Hello, I want to create an app, whith the following structure: UITabBarController ..UINavigationController ....UITabBarController So, in other words, I want to load first UITabbarController as my main ViewController, that appears on application start, in its' first tab there's a UINavigationController with a table, which shows another UITabBarController by pressing on a table cell. I started Tab Based application, set first tab to UINavigationController, and its ViewController to my TableViewController. I also created second UITabBarController in Interface Builder. Created a separate class for this controller. Everything works fine at start - my first UITabBarController is shown perfectly, but when I'm trying to push my second UITabBarController, using my UINavigationController, it looks like nothing is loaded from a .xib file - there are just an empty TabBar and NavigationBar pushed. Seems, that something is wrong with an architecture, but I can't figure out the problem. Thanks in advance and I'm sorry for my poor English. Please let me know if something is not clear, I'll try to rephrase it :).

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• problem with hand tracking, opencv

  - by JP Talusan

  I am currently creating an opencv program that identifies a hand in an image and then gets the contour of the hand only, in order for us to get the center (x,y)m in pixels, of the hand. The problem is that whenever the image or video includes an arm or a face, we can't split or separate the hand from the contours of the arm or the face. We are currently using an HSV flesh colored histogram to get the contours of the hand. is there a way to separate them, i just need the hand. also if the picture includes only a hand and some part of the arm. How can we isolate the palm itself from the rest of the picture. all we need is a clear center of the palm. thanks in advanced.

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• how i can get AspNetAccessProvider?

  - by loviji

  Hello, in my asp.net web application i used ASPNetSQLProvider for membership. Now i need use ASPNETAccessProvider. I wrote in webconfig file: <membership defaultProvider="AccessMembershipProvider" > <providers> <clear /> <add name="AccessMembershipProvider" type="System.Web.Security.AccessMembershipProvider" connectionStringName="AccessConnection" /> </providers> </membership> and trying to create user, and code fails : Could not load type 'System.Web.Security.AccessMembershipProvider'. How can i fix this?

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• Difference between Singleton implemention using pointer and using static object

  - by Anon

  EDIT: Sorry my question was not clear, why do books/articles prefer implementation#1 over implementation#2? What is the actual advantage of using pointer in implementation of Singleton class vs using a static object? Why do most books prefer this class Singleton { private: static Singleton *p_inst; Singleton(); public: static Singleton * instance() { if (!p_inst) { p_inst = new Singleton(); } return p_inst; } }; over this class Singleton { public: static Singleton& Instance() { static Singleton inst; return inst; } protected: Singleton(); // Prevent construction Singleton(const Singleton&); // Prevent construction by copying Singleton& operator=(const Singleton&); // Prevent assignment ~Singleton(); // Prevent unwanted destruction };

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• Use WatiN for automation upload file on the website

  - by MrDuDuDu

  I need upload file on the website. But Have a problem, i can't choose file automatic in code. Always browser show me choose file window. What wrong in my code? IE ie = new IE("https://www.xxxx.com/WFrmlogin.aspx"); FileUploadDialogHandler uploadHandler = new FileUploadDialogHandler(@"D:\065-6405_URGENT.xls"); ie.WaitForComplete(); ie.TextField(Find.ById("txtUser")).TypeText("login"); ie.TextField(Find.ById("txtPassWord")).TypeText("***"); ie.Button(Find.ById("btnok")).Click(); ie.WaitForComplete(); ie.GoTo("https://www.orientspareparts.com/inq/WFrmUpOption.aspx"); ie.WaitForComplete(); ie.DialogWatcher.Clear(); ie.AddDialogHandler(uploadHandler); // This code show choose file dialog ie.FileUpload(Find.ById("FilUpload")).ClickNoWait(); ie.Button(Find.ById("butUpload")).Click(); ie.WaitForComplete();

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• C# HMAC Implementation Problem

  - by Emanuel

  I want my application to encrypt a user password, and at one time password will be decrypted to be sent to the server for authentication. A friend advise me to use HMAC. I wrote the following code in C#: System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding(); byte[] key = encoding.GetBytes("secret"); HMACSHA256 myhmacsha256 = new HMACSHA256(key); byte[] hashValue = myhmacsha256.ComputeHash(encoding.GetBytes("text")); string resultSTR = Convert.ToBase64String(hashValue); myhmacsha256.Clear(); How to decode the password (resultSTR, in this case)? Thanks.

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• Win32 scrolling examples

  - by Christopher

  Could anyone point me to (or provide?) some nice, clear examples of how to implement scrolling in Win32? Google brings up a lot of stuff, obviously, but most examples seem either too simple or too complicated for me to be sure that they demonstrate the right way of doing things. I use LispWorks CAPI (cross-platform Common Lisp GUI lib) in my current project, and on Windows I have a hard-to-figure-out bug relating to scrolling; basically I want to do some tests directly via the Win32 API to see if I can shed some light on the situation. Many thanks, Christopher

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• using zend form decorators

  - by pradeep

  <div class="field50Pct"> <div class="fieldItemLabel"> <label for='First Name'>First Name:</label> </div> <div class="fieldItemValue"> <input type="text" id="firstname" name="firstname" value="" /> </div> </div> <div class="clear"></div> I want the code to appear like this in source code . how do i write the same thing in zend using decorators ? The element is like $firstname = new Zend_Form_Element_Text('FirstName'); $firstname->setLabel('FirstName') ->setRequired(true) ->addFilter('StripTags') ->addFilter('StringTrim') ->addErrorMessage('Error in First Name') ->addValidator('NotEmpty');

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• How to create a protocol at runtime in Objective-C?

  - by Jared P

  Hi, First of all, I want to be clear that I'm not talking about defining a protocol, and that I understand the concept of @protocol someprotocol - (void)method; @end I know that the Obj-C runtime allows creation of classes at RUNTIME, as well as its ivars and methods. Also available for creation are SEL-s. I think I'm just missing something, but does anyone know what function to call to create a protocol at runtime? The main reason for this is for conformsToProtocol: to work, so just adding the appropriate methods doesn't really cut it.

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• Rename "Event" object in jQuery FullCalendar plug-in

  - by Jeff

  GREAT PLUGIN!!! BUT... choice of word "Event" to mean a "calendar entry" was particularly unfortunate This is a wonderfully well-written plug in, and I've really impressed people here at work with what this thing can do. The documentation is astonishingly thorough and clear. Congratulations to Adam! HOWEVER, this plug-in refers to entries in the calendar as "Events" -- this has caused a lot of confusion in my development team's conversations, because when we use the word "Event" we think of things like onmouseover, click, etc. We would really prefer a term like CalendarEvent or CalendarEntry. I am not all that experienced with jQuery yet, so am wondering if there is a simple way to alias one of those terms to this plug-in's Event/Events object? (I know we could recode the plug-in directly, but our code will then break when we download an update.) Thanks!

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• Creating a CD-burning feature for a music player based on Java

  - by jjanggoo

  Hi, I'm trying to create a CD-burning feature for a Java-based music player for my school project. Since I'm new to real-life programming (I've only learned to write codes on AP Computer Science A level), I don't know how I can apply the concepts I learned from APCS A to this task. A friend of mine who is studying computer science at graduate school told me to "look up the cd player control functions and add methods in those classes to read in data that you want to write to the CD, write it to a buffer, write everything in the buffer to the CD itself, clear the buffer and then write a new chunk of data into the buffer," but I can't quite grasp what this means, and tt's really hard to contact her right now because she's busy working on her dissertation. Can someone from this forum please guide me through & explain the general concepts? Thank you!

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• How to draw semi-transparent text on a graphics object?

  - by awe

  I want to draw a text with 32 bit transparency on a graphics object. When I try, I only get black color in the result. If I try to draw a line with the same semitransparent color, it works perfectly. I have this code: lBitmap As New Bitmap(32, 32, PixelFormat.Format32bppArgb) lGraphic As Graphics = Graphics.FromImage(lBitmap) lGraphic.SmoothingMode = SmoothingMode.HighQuality lGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic lGraphic.Clear(Color.Transparent) Dim lTestTransparencyColor As Color = Color.FromArgb(100, 140, 0, 230) lGraphic.DrawLine(New Pen(lTestTransparencyColor), 0, 0, 32, 32) lBrush As New SolidBrush(lTestTransparencyColor) lGraphic.DrawString("A", New Font("Arial", 12), lBrush, 0, 0) Dim lImage As Image = lBitmap lImage.Save("D:\Test.png", Imaging.ImageFormat.Png) The line is drawn with the transparency applied correctly, but the text is black with no transparency. I was thinking it may be that SolidBrush does not support transparency, but I found a predefined brush named Transparent (Brushes.Transparent) that was a SolidBrush when I looked at it in debug. I tried to use Brushes.Transparent as the brush when drawing the text, and it was successfully not showing at all. That means I get full transparency to work, but not partial transparency.

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• Appengine Apps Vs Google bot web crawler

  - by sandeep koduri

  i built an appengine web app cricket.hover.in. The web app consists of about 15k url's linked in it, But even after a long time of my launch, no pages are indexed on google. Any base link place on my root site hover.in are being indexed with in minutes. but i placed the same link home page of root site a long back. but its of no use. can any one analyse , if there is any issue with cricket.hover.in or if bots have any issues with Google app engine actually tested the url using labs app of webmaster tools of google there the return is fine and html is clear. but when tested the same (cricket.hover.in) at the following urls its showing different results of failure www.dnsqueries.com/en/googlebot_simulator.php www.smart-it-consulting.com/internet/google/googlebot-spoofer/ but if i test some of my php or word press links at the above url's the results are good and fine. please help me with this.

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• jquery Fullcalendar : dynamic events function asp.net mvc

  - by Eran

  Hi, I'm integrating Fullcalendar into my app. Consider a manager interface where he can select an employee and then view this employee's calendar. Now basically I'm using the following jquery code in my view: <script type="text/javascript"> $(document).ready(function() { $("#calendar").fullCalendar({ defaultView: 'agendaWeek', isRTL: true, axisFormat: 'HH:mm', editable: true, events: "/Scheduler/CalendarData" }); }); </script> Now I would like to have the controller function assigned to the events to retrieve the specific user selected by the manager: events: "/Scheduler/CalendarData/<current_user_name> Is there any way to retrieve the selected employee user name from the view (or rather pass it to the view from the controler) and then pass it onto the bound events function? I hope I was clear enough... Thanks in Advance, Eran

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• How to page while maintaining the querystring values in ASP.Net Mvc 2

  - by Picflight

  I am using the pager provided by Martijin Boland to implementing paging in my Asp.Net Mvc 2 application. My form uses the GET method to send all parameters to the querystring, it is a search form with several form elements. <% using (Html.BeginForm("SearchResults", "Search", FormMethod.Get)) {%> On the SearchResults View I am trying to implement paging: <div class="pager"> <%= Html.Pager(Model.PageSize, Model.PageNumber, Model.TotalItemCount, new { Request.QueryString })%> </div> The Html.Pager has some overloads which I am not too clear on how to use. The Request.QueryString makes the querystring look like this: http://localhost:1155/Search/SearchResults?QueryString=Distance%3D10%26txtZip%3D%26cb&page=2 Should it not be like this? http://localhost:1155/Search/SearchResults?Distance=20&txtZip=10021&page=2

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• delphi idhttp post related question

  - by paul

  hello All im new to delphi. and also almost new to programming world. i was made some simple post software which using idhttp module. but when execute it , it not correctly working. this simple program is check for my account status. if account login successfully it return some source code which include 'top.location =' in source, and if login failed it return not included 'top.location =' inside account.txt is follow first and third account was alived account but only first account can check, after first account other account can't check i have no idea what wrong with it ph896011 pk1089 fsadfasdf dddddss ph896011 pk1089 following is source of delphi if any one help me much apprecated! unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient, IdHTTP, IdCookieManager, ExtCtrls; type TForm1 = class(TForm) Button1: TButton; IdHTTP1: TIdHTTP; Memo1: TMemo; IdCookieManager1: TIdCookieManager; lstAcct: TListBox; result: TLabel; Edit1: TEdit; Timer1: TTimer; procedure Button1Click(Sender: TObject); //procedure FormCreate(Sender: TObject); //procedure FormClose(Sender: TObject; var Action: TCloseAction); private { Private declarations } public AccList: TStringList; IdCookie: TIdCookieManager; CookieList: TList; StartCnt: Integer; InputCnt: Integer; WordList: TStringList; WordNoList: TStringList; WordCntList: TStringList; StartTime: TDateTime; end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); var i: Integer; //temp: String; lsttemp: TStringList; sl : tstringlist; //userId,userPass: string; begin InputCnt:= 0; WordList := TStringList.Create; CookieList := TList.create; IdCookie := TIdCookieManager.Create(self); if FileExists(ExtractFilePath(Application.ExeName) + 'account.txt') then WordList.LoadFromFile(ExtractFilePath(Application.ExeName) + 'account.txt'); WordNoList:= TStringList.Create; WordCntList := TStringList.Create; lsttemp := TStringList.create; sl :=Tstringlist.Create; try try for i := 0 to WordList.Count -1 do begin ExtractStrings([' '], [' '], pchar(WordList[i]), lsttemp); WordNoList.add(lsttemp[0]); //ShowMessage(lsttemp[0]); WordCntList.add(lsttemp[1]); //ShowMessage(lsttemp[1]); sl.Add('ID='+ lsttemp[0]); sl.add('PWD=' + lsttemp[1]); sl.add('SECCHK=0'); IdHTTP1.HandleRedirects := True; IdHTTP1.Request.ContentType := 'application/x-www-form-urlencoded'; memo1.Text:=idhttp1.Post('http://user.buddybuddy.co.kr/Login/Login.asp',sl); if pos('top.location =',Memo1.Text)> 0 then begin application.ProcessMessages; ShowMessage('Alive Acc!'); //result.Caption := 'alive acc' ; sleep(1000); Edit1.Text := 'alive acc'; lsttemp.Clear; Memo1.Text := ''; //memo1.Text := IdHTTP1.Get('https://user.buddybuddy.co.kr/Login/Logout.asp'); Sleep(1000); end; if pos('top.location =', memo1.Text) <> 1 then begin application.ProcessMessages; ShowMessage('bad'); Edit1.Text := 'bad'; //edit1.Text := 'bad'; lsttemp.Clear; memo1.Text := ''; sleep(1000) ; end; Edit1.Text := ''; end; finally lsttemp.free; end; StartCnt := lstAcct.items.Count; StartTime := Now; finally sl.Free; end; end; end.

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• Query only the first detail record for each master record

  - by Neal S.

  If I have the following master-detail relationship: owner_tbl auto_tbl --------- -------- owner --- owner auto year And I have the following table data: owner_tbl auto_tbl --------- -------- john john, corvette, 1968 john, prius, 2008 james james, f-150, 2004 james, cadillac, 2002 james, accord, 2009 jeff jeff, tesla, 2010 jeff, hyundai, 1996 Now, I want to perform a query that returns the following result: john, corvette, 1968 jeff, hyundai, 1996 james, cadillac, 2002 The query should join the two tables, and sort all the records on the "year" field, but only return the first detail record for each master record. I know how to join the tables and sort on the "year" field, but it's not clear how (or if) I might be able to only retrieve the first joined record for each owner. Three related questions: Can I perform this kind of query using LINQ-to-SQL? Can I perform the query using T-SQL? Would it be best to just create a stored procedure for the query given its likely complexity?

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• "TypeError: draw() takes exactly 1 non-keyword argument (3 given)"

  - by Amorack

  I wrote this code to open a window with Pyglet in Python... import pyglet from pyglet import window class Window(pyglet.window.Window): def __init__(self): super(Window, self).__init__() myLabel = pyglet.text.Label("Prototype") windowText = myLabel.draw(Window, "Hello World", font_name = "Times New Roman", font_size = 36, color = (193, 205, 193, 255)) def on_draw(self): self.clear() self.label.draw() if __name__ == '__main__': window = Window() pyglet.app.run() however every time I run it I get this error: TypeError: draw() takes exactly 1 non-keyword argument (3 given) AFAIK the "(3 given)" means the problem is with the font_size or color arguments but I'm not sure. Could someone explain what's wrong and help me make this work?

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• OpenGL Wrapper in .Net

  - by Ngu Soon Hui

  This question is similar to the one here. But I feel that the answers recommended ( such as Tao and OpenTK) are not good enough because they are just a direct port from OpenGL, with no OOP design, and hard to use. What I'm looking for is a .Net OpenGL wrapper that is written in clear OOP principles, easy to use ( easy to apply textual and lighting, easy to debug etc), able to rotate the 3D diagram with mouse ( a feature that is critically missing from OpenGL and TAO), and the ability to export to other file formats ( such as dwg or dxf or Google Map file format). Any suggestion? Both Open source or commercial components would do.

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• copy text (Indian language- GUjarati) from word document to web page text area problem.

  - by Avinash

  Hi all, I am developing one site in Indian language (Gujarati). My problem is as below: My client wants that they able to copy Gujarati text from word document and paste into the Text area. But when i copy text from word doc and paste into text area the its get converted to the English letters. http://www.chanakyanipothi.com/gujchanakya/Gopika.ttf Above is the link of fonts which I am using. I can provide you the demo code for you to make some work on it. Is there any special thing which I am missing. Hope I am clear to you. I am running in PHP and apache. Thanks Avinash

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