| 1. | 7 , i mpeg2 adoption the inside compress the calculate way , fundamental similar to mjpeg . the mpeg2 differentiation i contain code rate upper limit , because of but always have the portrait to hurt of , but the mjpeg has no a code rate upper limit , can cope with to the circumstance that the portrait quantity request very the engrave 7 i帧的mpeg2只采用帧内压缩算法,基本和mjpeg相同。区别是i帧的mpeg2有码率上限,因而总是有图象损伤的,而mjpeg没有码率上限,可以应付对图象质量要求很苛刻的情况。 |