Overlapping Sliding Windows Over Image

My objective is to have a sliding window slide over an image in overlapping steps so that I can run a classifier in each window and detect if an interesting object is there. For th

Solution 1:

Alright so I figured out what the issue was.

This code didn't cause overlaps:

grid_h_max =(imgheight/winh)
grid_w_max= (imgwidth / winw)
win = sliding_window(img, window_size, shiftSize=None, flatten=False) 

Dividing the entire image dimensions with those of the window dimensions are obviously going to give non-overlapping results.

To get the right number of windows per dimension, I simply allow the sliding_window function to tell me itself what the number of windows is, vertically and horizontally:

win = sliding_window(img, window_size, shiftSize=None, flatten=False) 
grid_h_max = win.shape[0]
grid_w_max = win.shape[1]

This gave me approximately 5000 windows again.