Hi,
I want to change pixel value in random way! (pixel-shuffling)
For example,
if I use CIFAR10 data,
then I could get [3,32,32] pixel tensors, and each pixel can get integer value between [0~255]
What I want to do is
I want to make new mapping! for 256 values. This can be named pixel-shuffling.
for example, [0,1,2,255] → randint(255) =>  [244,3,0,255]
I want to ask you if there is better way to do pixel-shuffling.
I only can think for-loop to change each pixel value like below…
(X is given input [batch_size, 3,32,32])
(key is mapping dictionary {0:244, 1:3, , previous_value: result_value,}
    result_X  = X
    for batch_i in range(X.shape[0]):
        for channel_j in range(X.shape[1]):
            for row_k in range(X.shape[2]):
                for col_l in range(X.shape[3]):
                    previous = X[batch_i][channel_j][row_k][col_l]
                    previous = previous.item()
                    result_X[batch_i][channel_j][row_k][col_l] = key[previous]

is there effective ways to do pixel-shuffling ?