Vulkan/CUDA/HIP/OpenCL/Level Zero/Metal Fast Fourier Transform library

Serveral digital image watermark algorithms implement with C++/OpenCV

🖼️ 🕵️ Forgery Detection on Images

DCT-based image denoising algorithm

2D DFT and 2D DCT of images

The program implements forward and inverse version of 2D Discrete Fourier Transform (FFT), Discrete Cosine Transform, Discrete Walsh-Hadamard Transform and Discrete Wavelets Transform (lifting scheme) in C/C++. The output of transforms is displayed for a given input image.

Image Compression using Huffman Coding

Renewed DCTFilter filter for VapourSynth (with arbitrary sized DCT and github actions based static build for Windows)

Create image manipulation techniques e.g. resizing to half , color conversion. And also providing the JPEG compression technique from the first step which is performing the DCT and the Zigzag and RLE(run length encoding) and the inverse for each one, all written in c++.

Fast discrete cosine transform algorithms (C++) (dct.hpp)

CS 423 Computer Vision - Assignment 1

dct-iv via fft

GPU-accelerated JPEG compressor

A robust C library for embedding and extracting invisible text watermarks in various image formats. It uses DCT-based algorithms for high robustness against cropping and tampering, featuring multi-format support, a command-line tool, and an easy-to-integrate library API.基于 DCT 的鲁棒文本水印 C 语言库，支持多种图片格式，抗裁剪涂抹，含命令行工具。

C/C++ wrapper library for fft-related computations on various targets

Discrete Cosine Transform optimized by using NVIDIA Tensorcores 🎶 🔛 📶