crop image automatically

i want to crop images automatically at the border of image. please help me. here i give two images.

http://i1259.photobucket.com/albums/ii548/msaiful89/gam.jpg

http://i1259.photobucket.com/albums/ii548/msaiful89/IMG_0001.jpg

Answer 1

[Junaid]

let say your image is I, and if you know your know the areas for your image to crop and those remain for all images then following command should work.

Top = 30;% pixel
bottom =10;%pixels from bottom
margin_left = 30;%pixel from left to right
margin_right = 10;%pixel from right to left
I = rand(729,1024); % random matrix with same dimensions as your image;

J =  I(top:size(I,1) - bottom , margin_left:size(I,2) - margin_right);

This should work, you can set the four parameter given above based on your image analysis.

[mohd]

i agree with you. If the border is does not fix. let say i have different image with border is not in same area. what can i do. how to make it automatically set parameter, so that, it can crop every image at the border after detect the border of image.