CutMix Area Lambda

Problem

Compute the lambda implied by a CutMix box.

The pasted box covers (x2 - x1) * (y2 - y1) of an image_h x image_w image, so lam = 1 - area / (image_h * image_w), with negative side lengths counting as zero. Return the value rounded to 4 decimal places.

Test cases

case 1

in: [[0,0,2,2],4,4]

expected: 0.75

case 2

in: [[0,0,4,4],4,4]

expected: 0

case 3

in: [[1,1,2,2],4,4]

expected: 0.9375

case 4

in: [[3,3,2,2],4,4]

expected: 1

Starter codePython

def cutmix_area_lambda(box, image_h, image_w):
    # Your code here
    pass

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