Checkmark 是数字水印中应用的攻击测试软件，是每个在做数字水印的人的必须使用的工具，这个文章告诉你怎么使用checkmark-Checkmark is the application of digital watermarking attacks testing software, are each at digital watermarking to do the people have to use a tool, this article tell you how to use c

checkmark是一款数字水印攻击测试软件，很实用的软件！-checkmark is a digital watermarking attack testing software, very useful software!

checkmark software for watermarking

matlab语言简单的实现对号和错号的识别，可以判断手写的对号和错号。-matlab language simple implementation checkmark and wrong identification number, can determine handwritten check mark and wrong numbers.