计算机科学 ›› 2015, Vol. 42 ›› Issue (2): 103-107.doi: 10.11896/j.issn.1002-137X.2015.02.022
胡浩,郁滨,沈刚
HU Hao, YU Bin and SHEN Gang
摘要： 针对像素不扩展视觉密码的边缘恢复失真问题,在分析图像边缘特征的基础上,通过构造LP算子,设计了一种具有可变膨胀倍数的边缘增强算法,并给出了边缘增强的像素不扩展视觉密码方案的设计方法。实验结果表明,该方法有效地改善了边缘的恢复质量,并显著提高了整幅图像的视觉效果。
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