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Jpeg压缩算法

于 2022-04-30 发布 文件大小:534.29 kB
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Jpeg图像压缩算法,包含jpeg编码以及解码程序。 1.JPEG编码可以用一句话概括:添加符号(游程长度、占用位数等)用霍夫曼编码,幅度值用修改的二进制正常编码。 2.包括两个主程序,分别执行JPEG编解码、给出相关参数结果。Jpeg没有对整体系数进行位移,而Jpeg2则在编码前,将整个数据减去128,这样可能可以提高性能。但是对这幅图像而言,Jpeg2性能比

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