How can i crop multiple images

Hello, I have, with the help of regionprops, drawn a bounding box around the parts I would like to crop. Could anyone tell me how i can crop the images and store it. Thank you. Edit: I am trying to crop handwritten characters.

Answer 1

[MathReallyWorks]

Hello shru,

Use this code for properly cropping the regions and saving them in a folder:

 grayImage = imread('shapes.png');
[rows, columns, numberOfColorBands] = size(grayImage);
if numberOfColorBands > 1
  grayImage = grayImage(:, :, 2);
end

 binaryImage = grayImage > 128;
binaryImage = imclearborder(binaryImage);
binaryImage = bwareaopen(binaryImage, 1000);
labeledImage = bwlabel(binaryImage, 8);
[labeledImage, numberOfBlobs] = bwlabel(binaryImage);
blobMeasurements = regionprops(labeledImage, 'BoundingBox');

 for m=1:numberOfBlobs
BB(m,:) = blobMeasurements(m).BoundingBox;
end

 txt=['A' 'B' 'C' 'D' 'E' 'F' 'G' 'H' 'I' 'J' 'K']; 
% txt is Random matrix of character for naming the files for saving them

 for i=1:numberOfBlobs
imagen = imcrop(grayImage, [BB(i,1)-5 BB(i,2)-5 BB(i,3)+10 BB(i,4)+10]);
figure,
imshow(imagen);
saveas(gcf,txt(i),'jpg'); %All cropped images are stored with the names A,B,C,D etc.
end

original image:

Result:

[shru s]

Beautiful piece of code. Thank you. But the thing is, I am trying to crop out handwritten characters. So this method is not helping me do that.

[Image Analyst]

Printed or script? You forgot to attach your image.