help me in finding functions

equal code for imshowpair(A,B,'diff'); in matlab R2011b

[Image Analyst]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

http://www.mathworks.com/matlabcentral/answers/728-how-do-i-write-a-good-question-for-matlab-answers

Answer 1

[Image Analyst]

imshowpair() is fairly recent. If "which imshowpair" does not list it, then it came after your version.

[Walter Roberson]

The user is asking for equivalent code that will work in R2011b.

With the 'diff' parameter, the part I am least sure of is the color mapping.

Answer 2

[Walter Roberson]

I am going to speculate here that this might work well enough for you:

imagesc( abs( im2double(A) - im2double(B) ) )
colormap(gray(256))

[Mrutyunjay]

Sir, I am a beginner in Image Processing using MatLab and I am trying to write a code which compares and detects the error between two images and marks the particular error portion..,kindly help me