And the experimental results show that the algorithm not only can reconstruct sub-image with high quality but also provided security assurances.
实验结果证明该算法能以较高质量恢复隐藏子图,并且具备高度的安全性。
参考来源 - 基于Contourlet变换的数字水印优化嵌入算法与性能分析·2,447,543篇论文数据,部分数据来源于NoteExpress
In this paper, a method was introduced to recognize targets in rosette scanning sub-image using model-matching technology.
介绍了用模板匹配的方法在玫瑰扫描亚图像中识别目标。
Furthermore, the size of the sub-image in wavelet domain is a quarter of the source image, so the convergence speed of our method is faster.
此外,高频子图像的大小为原图的四分之一,因此计算量大大减少,算法的收敛速度更快。
Because both vessels and background are locally uniform in retinal images, there must be a threshold which is able to segment vessels precisely in a certain sub-image.
因为视网膜图像中血管和背景在局部范围内都比较均匀,所以在每个子图像中都存在一个局部阈值能够将其中的血管分割出来。
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