i have code for extracting multiple faces from an image and cropping these extracted faces from image, now i want to save these cropped faces in a folder , how can i do that??

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FaceDetect = vision.CascadeObjectDetector;
BB = step(FaceDetect,I);
for i = 1:size(BB,1)
rectangle('Position',BB(i,:),'LineWidth',3,'LineStyle','- ','EdgeColor','r');
for i = 1:size(BB,1)
J= imcrop(I,BB(i,:));

Accepted Answer

Cam Salzberger
Cam Salzberger on 25 Oct 2017
Hello Saeeda,
You can use imwrite to save images to a file.
imwrite(J, 'E:\g_cropped.jpg')
Cam Salzberger
Cam Salzberger on 27 Oct 2017
That is not an easy problem that someone can simply "guide you" through. There are actually challenges where people can win money for solving that kind of problem.
There are some suggested products and workflows on the MathWorks site, but it will require significant amount of data (classified images) to start with as a baseline. Depending on how you define your problem, you may be able to find papers/work done by others on this problem to advance you further, or you may have to do the majority of it yourself. But either way, I'd start with some scholarly article review.

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