im2col

Convert an image to pixel per row format

out = im2col(im) is a matrix (NxP) where each row represents a single of the image im (HxWxP). The pixels are in image column order (ie. column 1, column 2 etc) and there are N=WxH rows.

out = im2col(im, mask) as above but only includes pixels if:

• the corresponding element of MASK (HxW) is non-zero
• the corresponding element of MASK (N) is non-zero where N=HxW
• the pixel index is included in the vector MASK

See also

col2im

Machine Vision Toolbox for MATLAB © 1990-2014 Peter Corke.