该文讨论了传统直方图均衡化算法的不足。 在分析人眼对图像亮度的感知 是呈对数关系的基础上．提出了基 于这一视觉特性的直方图均衡化算法的改进方法。该法过把对比度在人眼识别范围外的像素依据视觉特性进行调整．来提高图像细节信息的表现能力。实验证明了该改进方法的有效性-The paper discusses the traditional histogram equalization algorithm deficiencies. Analysis of the human eye in the perception of the image brightness is logarithmic relationship basis. Proposed based on the visual characteristics of the histogram equalization algorithm method. The law had to recognize the contrast outside the scope of the human eye based on visual characteristics of pixels to adjust. To improve the performance of image detail information capacity. Experimental results show the effectiveness of the modified method