Discrete Cosine Transformation

We release the codes of 2D DCT with Numpy and PyTorch.

Our deployment can process a batch of square images with [B, N, N] shape, rather than process image one by one.

Examples

• Original mask images:

• transformed by cv2.dct:

• transformed by our Numpy deployment:

• transformed by our PyTorch deployment:

• Recover by cv2.idct:

• Recover by our Numpy deployment:

• Recover by our PyTorch deployment: