How to find pixel coordinates in batch

I have an array of 3 columns of R,G,B values and 100 rows for different pixels of one image. I need to find the coordinates of similar valued pixels of each element of the array in separate clusters in large number of images in distributed/parallel manner. How do I implement it?

Answer 1

[KSSV]

doc find .

[Anupam Saikia]

I mean to ask, find for every element of the array in all the images in parallel processing.

[KSSV]

put a parfor loop.