从二值图像延伸到灰度图像，我们根据小波变换后小波系数的特点，将行程编码算法进行了改进，结合小波变换对灰度图像进行编码。
We code the gray images combined improved run-length encoding algorithm with wavelet transform according to the characteristics of the wavelet transform coefficients.
行程编码(RLE)压缩算法需要非常少的处理器时间，适用于在连续位置重复许多相同字节值的数据。
The run length encoding (RLE) compression algorithm requires very little processor time and works well for data that has lots of the same byte value repeated in consecutive locations.
本文引入并用微机实现了泛漫算法，它可以方便地实现从矢量数据到以物体为中心的行程编码的转换和存贮。
With the help of microcomputer, this paper introduces and realizes the flood algorithm, which can convert vector data to object - centred run length encoding rapidly and store it conveniently.
同时，给出了编码和译码的算法，并且与等值线编码和一维行程编码的压缩效果进行了比较。
The comparison of the compression efficiency between the new method and those of the contour encoding and one-dimensional run length encoding is also made.
同时，给出了编码和译码的算法，并且与等值线编码和一维行程编码的压缩效果进行了比较。
The comparison of the compression efficiency between the new method and those of the contour encoding and one-dimensional run length encoding is also made.
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