We present a JPEC-compliant method for the efficient compression of compound documents using variable quantization, based on the DCT activity of each 8/spl times/8 block, our scheme automatically adjusts the quantization scaling factors so that test blocks are compressed at higher quality than image blocks. Results from three different quantization mappings are also reported.
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机译：我们提出了一种符合JPEC的方法，可使用可变量化有效地压缩复合文档，基于每个8 / spl times / 8块的DCT活动，我们的方案会自动调整量化比例因子，以便以更高的质量压缩测试块比图像块。还报告了来自三个不同量化映射的结果。
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