I have been dabbling trying to make a look-up table mapping for this tedious for-loop but I wasn't successful. Here is the code and explanation of what I am trying to do:
My 'kk' is in order of millions for this loop is somehow time consuming.
Basically, I have a matrix called 'aa'.
'aa' is some Nx4 matrix where each row has mapping values.
What I want to do is going through row by row of matrix 'aa' and map image value 'img' to its corresponding place in image 'imageModified'.
Let's say aa=[ 50 40 60 70 ; 2 56 28 10 ; .... ]
So what I want to do is: map img(50,40) value to location imgModified(60,70). Map map img(2,56) value to location imgModified(28,10). And do that for 'aa' N rows.
Thank you in advance,