myimagelib.corrLib.divide_windows

myimagelib.corrLib.divide_windows(img, windowsize=[20, 20], step=10)

Divide an image into windows with specified size and step. Size and step can be different, so that we generate a downsampled image with either overlap or gaps.

>>> from myimagelib.corrLib import divide_windows
>>> X, Y, I = divide_windows(img, windowsize=[20, 20], step=10)
Parameters:

  • img (2d array) – image

  • windowsize (list(int)) – window size in x and y

  • step (int) – distance between the centers of adjacent windows

Returns:

X,Y,I – I is the downsampled image, while X, Y are the corresponding coordinates in x an y

Return type:

2d arrays