HOW TO CROP MULTIPLE IMAGES

I have multiple images in .bmp format and i need to crop them. the parameters of cropping[Xmin,Ymin,width,height] are present in the text file. please help me doing this. THANK YOU

[Adam]

read the .bmp files:

doc imread

read the text file if you need it automated. No idea what format that is in but e.g.

doc textscan

can be used for this or other functions in the See Also of that.

Crop the image which can presumably just be done with basic indexing operations:

doc colon

Save them if needed

doc imwrite

Answer 1

[Image Analyst]

This is a FAQ, so read the FAQ for code samples: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Inside the loop, put imcrop() and imwrite().

[HARSHA DARA]

i am having all the parameters of the images in single excel file and text file (each line having parameters of each image). and all the images in single file numbered 1,2,3,4,.....please provide me with the exact code for this.Thank you.

[Image Analyst]

You want me to copy and paste code from the FAQ here for you? It's simply this:

[num, strings, raw] = xlsread(filename)
files = dir(....
for k = .....
    % FAQ code
    croppedImage = imcrop(.....
    imwrite(croppedImage, newFilename);
end

That's essentially it. I'm sure you can get it. You just have to get your cropping parameters and decide upon a new filename.