【工具】apng图像判定调研

Japng - Java APNG 库 ：

https://www.reto-hoehener.ch/japng/apng_library.html

GitHub

Japng: Flexible Java-only PNG reader with APNG and Android support：https://github.com/aellerton/japng

zhuker/apng4j：https://github.com/zhuker/apng4j  [重点]

从Java中的APNG提取png文件:https://www.coder.work/article/5544885