Meanwhile, effect of quantization to edge excursion is analyzed and studied and the error of excursion is given.
同时，还分析研究了量化精度对图像边缘的移位影响，给出了移位误差。
2
And this paper classifies the popular methods, the main ideas are as follows: edge preserving, vector quantization, wavelet transform, interpolation kernel, Fractal technology and edge model.