How to divide intensity values of one grayscale image to the intensity values of another grayscale image??

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Hamza Ahmed 2014-9-2

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评论： Hamza Ahmed 2014-9-2

Please help! I have two gray scale images. I want to divide each pixel value of one image with the corresponding pixel value of the other gray scale image.

Simply put, how to divide pixels of one gray scale image to the other?

Thanks.

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Answer 1

Image Analyst 2014-9-2

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If they're uint8, be sure to cast to double first or else you'll get clipping.

ratioImage = double(image1) ./ double(image2);

To display, use []:

imshow(ratioimage, []);

You can cast back to uint8 if you want, but that will lose fractions less than 1, so it should only be done when you know all the numbers will be well above 1.

ratioImage = uint8(ratioImage);