传统的图像增强方法有灰度变换、直方图修正、直方图均衡、图像平滑和维纳滤波。
The traditional image enhancement approaches include gray-scale transformation, histogram modification, histogram equalization, image smoothing and Wiener filtration.
区域间直方图均衡不同于传统的直方图修正技术，该思想是充分地考虑到人类的视觉特性和边缘在图像视觉中的作用而提出的。
The region histogram equalization is different from traditional histogram modification technology, the idea is based on human vision character and edge effect in image vision.
第三，一旦实际汇率与实际均衡汇率错配，将如何进行制度重构与政策修正。
The third is how to reconstruct the exchange rate system if it exists the misalignment of real exchange rate and real equilibrium exchange rate.
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