Feature Map Channel Std

Problem

Compute the population standard deviation of each channel in an H x W x C feature map.

Return one value per channel rounded to 4 decimal places.

case 1

in: [[[[0,10],[20,30]],[[1,1],[1,1]]]]

expected: [8.3815,11.8427]

case 2

in: [[[[5,5],[5,5]]]]

expected: [0,0]

case 3

in: [[[[1,2],[5,2]],[[2,2],[2,2]]]]

expected: [1.5,0]

Starter codePython

def channel_std(feature):
    # Your code here
    pass

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