two dimensional Principal component analysis

how can i write code of 2D PCA transform for image processing.i intend to use this transform in image compression as well as for denoising purpose.pls help me sir..

[Shubhobrata]

Sir. I am looking for the code of 2D-PCA. Please help.

[Image Analyst]

See code in my answer here.

Answer 1

[Daniel Shub]

You can preform PCA on a set of images by converting them to vectors, getting the principal components, and then converting those components back to a image

doc reshape

Basically, PCA doesn't care about the relative positions of elements in the input array.