The paper analyzed the JPEG compressing method with losing information and several classical methods of edge distilling in brief.

简要分析了有损JPEG压缩算法和几种经典的边缘提取算法；

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This makes JPEG very poor for compressing text that needs to remain readable.

这使得JPEG非常不适于压缩需要保持字迹清晰的文本。

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In the direction of this scheme, a watermark algorithm is proposed which can resist the JPEG lossy compressing and images uniting question. The test results prove its both characters.

在该方案的指导下，提出了一种抗jpeg压缩和图像合并的水印算法，通过试验，证明该算法具有很强的抗压缩性和抗合并性。

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Although the Jpeg format later caught on because it is better at compressing photographs, Gif's technique remains superior at tackling images containing large areas of uniform colour when no more than 256 different colours are used in the whole picture.

BBC: Webby Awards