This paper was a review of the methods of feature extraction and feature selection for spam image identification.
对垃圾图像判别问题中的特征提取和特征选择研究现状进行了总结。
On the hand of text-based features, compare with normal image, spam image usually contains more than text and in order to prevent the text filter contain content obscuring;
在文本方面特征由于垃圾图像需要传递制造者的信息，通常会比正常图像包含有跟多的文字内容，同时为了阻碍过滤器对图像文字特征的提取通常会包含有混淆内容；
不是垃圾的虚拟图像……。
We need to research on the image spam.
这就需要对图像型垃圾邮件进行研究。
Robots may post lots of spam comments into your database. You can add a verification code image or a math equation to avoid this.
于是便动手写了一个插件，不仅可以采用数学等式验证，更可以使用图片验证码。
Robots may post lots of spam comments into your database. You can add a verification code image or a math equation to avoid this.
于是便动手写了一个插件，不仅可以采用数学等式验证，更可以使用图片验证码。
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