摘要
文章提出了一种针对图象分块处理拼接痕迹的检测方法。文章将对灰度变化敏感的梯度检测方法和对图象对比度有拉伸作用的直方图均衡方法进行了有效结合,提出了梯度直方图均衡方法。经过程序对算法的验证,图象分块处理后的拼接痕迹被明显地体现出来,并且能按照显示出的痕迹来测量原图的分块大小。实验证明此种方法对于检测分块图象处理痕迹有着良好效果。
This dissertation proposes a detection method for image blocking processing trace. This dissertation combines gradient detection which is sensitive to gray becoming with histogram balance which is effective to contrast extruding, and proposes a gradient histogram balance method. Through the verification of this algorithm, the splicing trace left by image blocking processing appearances obviously, and me blocking size can be measured according to the appeared trace. This processing way is verified to be effective to detect the image blocking processing trace.
出处
《电子技术（上海）》
2011年第11期8-9,共2页
Electronic Technology
关键词
分块处理
拼接痕迹
灰度
梯度直方图
image blocking processing
splicing trace
gray
gradient histogram
