It detects the edge information of color printing registration image, calculates ECM of edge image, and extracts the peak value of ECM.
该算法检测彩色套印图像的边缘信息，在边缘图像中计算ECM，并提取ECM中的极值点。
参考来源 - 基于ECM的彩色套印偏差检测算法·2,447,543篇论文数据，部分数据来源于NoteExpress
Finally, the VOPs are extracted from the edge image model sequence.
最后，利用边界图像模型从序列中提取出视频对象平面（VOP） 。
The noise of edge image would be decreased by withdrawing and restrained growing operation.
通过退化和约束生长实现对边缘图的去噪处理。
Finally, the edge image is embedded into the smoothing image, and the final denoising image is gained.
最后，将边缘图像嵌入平滑图像中，得到去噪后的图像。
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