Abstract: Image privacy protection and management face many challenges, such as privacy disclosure, copyright dispute, and traceability difficulties, with the development of big data. Reversible data ...

以学习为目的编写的简易jpeg编码器，以看得懂为目标，代码尽可能清晰简洁，不对内存、性能做看不懂的优化，也不实现jpeg更多高级特性。 为什么要做色域转换？因为人眼的视杆细胞（对亮度敏感）的数量远多于视锥细胞（对颜色敏感），因此适当压缩颜色 ...

FFmpeg 8.0 brings GPU-accelerated video encoding via Vulkan – and can now subtitle your videos automatically using integrated speech recognition. We last looked at FFmpeg version 6.1 in late 2023, in ...

Abstract: Huffman codes translate letters from a fixed alphabet to d-ary codewords, achieving optimal compression for a given frequency distribution of letters. There is a well-known greedy algorithm ...