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。
Chain coding and its evolutional method are lossless contour coding. Polygon approach contour encoding is loss coding. 形状和位置的无损编码方法有链码编码和基于链码的各种改进方法,有损编码方法有多边形近似替代法;