dct

README

dct

dct performs forward and inverse discrete cosine transforms.

Documentation

Overview

Package dct implements forward and reverse discrete cosine transforms. The algorithm is based on the information at: https://www.mathworks.com/help/images/ref/dct2.html and https://www.mathworks.com/help/images/ref/idct2.html.

Index

• func F(src, dst *mat.Dense) *mat.Dense
• func I(src, dst *mat.Dense) *mat.Dense

Functions

func F

func F(src, dst *mat.Dense) *mat.Dense

F computes the forward discrete cosine transform of src and places it in dst, also returning dst. If dst is nil, a new matrix is allocated and returned.

func I

func I(src, dst *mat.Dense) *mat.Dense

I computes the inverse discrete cosine transform of src and places it in dst, also returning dst. If dst is nil, a new matrix is allocated and returned.