hi everyone i want to change some pixels values based on special condition. for instance if value of a pixel is 75, set it to zero or some another values. i use opencv in c++ and use IPLimage for processing images in program. i want to use this idea for detect unnecessary areas and eliminate them. thank you.
Simply said, you need to work yourself into getting familiar with OpenCV like @berak suggested. Questions like this can be solved by simply performing 1 or 2 tutorials and getting the hang of everything. That said, the following pseudocode needs to be formed to your problem but it illustrates the desired functionality.
Mat image;
for(int i = 0; i < image.rows; i++){
for(int j=0; j < image.cols; j++){
//apply condition here
if(image.at<type>(i,j) == threshold){
image.at<type>(i,j) = 255;
}
}
}Good luck!
Asked: Jul 10 '14
Seen: 24,105 times
Last updated: Jul 11 '14
now try again, please; explain it to a 5 year old (and avoid IplImages, they died in 2010)
(if you did not find out yet, what replaced them, - there's work for you...)
in grayscale images any pixels have values between 0 and 255, OK? i want to get this values and set them by desired values.
start reading here, and ofc here
thanks a lot! i find my answer. i am new in opencv and this tutorials is great for me.