Why I display this error?

Hi, I converted two RGB images into the respective two images of itensity. Now I have to subtract the tip (pixel by pixel), but because when I subtract between the two intensity images previously generated, I get this error message "Matrix dimensions must agree."?

Answer 1

[Jan]

It sounds like the images have different sizes. Use imresize to adjust the dimensions.

A more detailed answer is possible, if you post your code.