改进的最小亮度分布标准彩色图像误差扩散算法

针对彩色图像最小亮度分布标准处理方法中的图像细节轮廓损失问题，提出了一种基于边缘检测的最小亮度分布标准误差扩散改进算法．算法首先对彩色图像进行边缘检测处理，提取图像的边缘点信息，然后依次提取彩色图像像素点．若像素点是图像的边缘点，则进行RGB颜色空间的固定阈值比较取值处理．若像素点是非边缘点，则进行最小亮度分布标准处理．最后采用基于HVS模型构造出的误差扩散系数对彩色图像进行误差扩散处理．仿真结果表明该算法能够较好地减少彩色图像的细节损失。

An Improved Color Image Error Diffusion Method Based on Minimal Brightness Variation Criterion

An improved minimal brightness variation criterion error diffusion method based on edge detection is proposed to solve the problem of the loss of color image detail contour caused by the minimal brightness variation criterion.With the proposed method the color image edge points were detected at first,and then each point of color image was picked up.If the point is the edge point,the point was compared with fixed threshold in RGB color space to get the halftone result;if the point isn't the edge point,the mi...