jpeg2dct or cv2

[YuqiangY]

This is a wonderful research idea and thought process.
But I have a question now: Are there many differences between jpeg2dct and cv2.dct with blockwise?
I have used them to do classification on Cifar10, but they have the same results almostly.

[zhangchbin]

Hi@LBJ23233
How do you use cv2.dct with clockwise?