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Published on 2010-03-23T17:02:30Z
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How can I subtract one image from another using openCV?
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I am a beginner at opencv.
I have this task:
Make a new image
Put a certain image in it at 0,0
Convert the certain image to gray scale
put the grayscaled image next to it ( at 300, 0 )
This is what I did.
I have a class imagehandler that has constructor and all the functions.
cv::Mat m_image
is…
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PLEASE SEE THE ADDITIONS AT THE BOTTOM! The first problem is solved in Linux, not under Windows and Cygwin yet, but there is a new problem. Please see below!
I am currently trying to compile OpenCV for Android NDK so that I can use it in my apps. For this I tried to follow this guide:
http://www…
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Hello
I'm trying to get adaptive thresholding working in the python binding to opencv
(the swig one - cannot get opencv 2.0 working as I am using a beagleboard as the cross compiling is not working yet). I have a greyscale image (ccg.jpg) and the following code
import opencv
from opencv import…
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Since I'm more comfortable using Eclipse, I thought I'd try converting my project from Visual Studio. Yesterday I tried a very simple little test. No matter what I try, make fails with "multiple target patterns". (This is similar to this unanswered question.)
I have three files:
Application.cpp:
using…
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Hello All,
I am trying to learn image processing and obviously opencv is one of the best options. Usually synaptic does all my installing work for me so I just checked the repos. But in the repos there is only on libcv1 and it is listed as 1.0.0-6.2ubuntu1. Does that mean it is version 1.0 of opencv…
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I'm working on a simple subtraction problem, but unfortunately it keeps returning NaN
Here is the function
function subtraction(a, b) {
var regexp = /[$][,]/g;
a = a.replace(regexp, "");
b - b.replace(regexp, "");
var _a = parseFloat(a);
var _b = parseFloat(b);
…
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Hello,
I need to subtract 0.5 from number a and set the answer to number b. My code looks like it would work but I'm not sure what I'm doing wrong. The error I get Is on the subtraction line, the error says incompatible type for argument 1 of 'decimalNumberBySubtracting:'.
Heres my header: (Note:…
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I'm doing background subtraction using opencv. The problem is the foreground object is not always detected correctly. To deal with this I would like to use four or five images, and take their average as the background image. How can I do that?
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Hi, I have one sheet for products purchased and another one that sold. I want to make a pivot table from two sheet to get current inventory for each product. But options are only sum, average etc there is no subtraction. How could I do that? I am using Excel 2007. Thanks
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I have two Sets. Set<B> b is the subset of Set<A> a. they're both very huge Sets.
I want to subtract b from a , what's the best practice to do this common operation ?
I've written to many codes like this , and I don't think it's efficient. what's your idea ?
for(int i = 0 ; i <…
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