dsp优化精华，通过7个rgb转yuv小程序的优化过程，可以初步了解一下dsp程序优化的精髓，包括浮点转换、定点优化、程序级优化、指令集优化、内存优化、DMA优化、数据拼合终极优化-dsp optimize essence, through turn seven rgb yuv small program optimization process can be a preliminary understanding of the essence of the dsp program optimi

视频图像缩放算法验证，包括浮点和定点算法，可实现任意比例的图像缩放-video rescaling arithmetic verification，including floating point and fixed point arithmetic，any scale can be achieved