老外写的开源图形图像处理软件，包含很多滤镜，虽没有photoshop的功能强大，但比windows自带画图功能强大的多但很多关键源码已被封死，已组件形式包含在其中，vs2005编译-An open source graphics image processing software by foreigners, including a lot of filters, although not more powerful than photoshop, but better than windows