A new image enhancement algorithm based on histogram statistics was proposed inallusion to characteristic that gray image may be described quantificationally by statistical matrix. The algorithm can enhance or reserve automatically gray values according to enhancement condition. So, details in the dark image are enhanced. Experimental results show that the algorithm can enhance details expected in the image.%针对图像的灰度特征可以通过统计矩进行定量描述的特点,提出了一种基于直方图统计学图像增强算法.该算法根据图像的全局灰度均值、方差及不同像素点子块灰度均值、方差,对符合增强条件的各像素进行增强,而对亮区不需增强的像素进行保留.因此,图像暗区的细节得以增强.实验结果表明,该算法增强了图像中所希望得到的细节.
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