Random Resized Crop (Seeded)

Problem

Perform a seeded random resized crop with aspect ratio 1.

Seed the random module, draw an area fraction uniformly from [scale_min, scale_max], set side = round(sqrt(fraction * H * W)) clipped to [1, min(H, W)], sample the top-left uniformly in the remaining range, then crop a side x side region and nearest-neighbor resize it to out_h x out_w.

Test cases

case 1

in: [[[1,2,3],[4,5,6],[7,8,9]],2,2,0.5,0.5,1]

expected: [[2,3],[5,6]]

case 2

in: [[[1,2,3],[4,5,6],[7,8,9]],2,2,0.25,1,7]

expected: [[2,3],[5,6]]

case 3

in: [[[0,1,2,3],[4,5,6,7],[8,9,10,11],[12,13,14,15]],2,3,1,1,3]

expected: [[0,1,2],[8,9,10]]

Starter codePython

def random_resized_crop(image, out_h, out_w, scale_min, scale_max, seed):
    # Your code here
    pass

3 test cases · run your code against them in the editor