Real image compression (JPEG, PNG) uses different techniques (DCT, entropy coding), but quadtrees capture the same principle: spend your bits where the detail is, not uniformly across the whole image.
Bidoof started as a joke. Then it became a legend.，更多细节参见51吃瓜
。业内人士推荐WPS官方版本下载作为进阶阅读
Random-generator or custom URL slugs。爱思助手下载最新版本对此有专业解读
Андрей Шеньшаков