适用于已给定颜色处理的彩色矢量最小距离误差扩散算法

提出了一种彩色矢量最小距离误差扩散算法.较常规误差扩散算法而言,可更好地处理编织过程中将彩色图像分解成由已给定颜色组成的离散图像的问题.该算法将每个像素点的RGB值作为一个矢量,采用矢量误差扩散系数矩阵计算像素点的误差和矢量,分别计算像素点原RGB矢量值与误差和矢量的和值与每个已给定颜色矢量的矢量距离,选矢量距离最小的已给定颜色矢量作为输出.仿真结果表明,采用该算法可将连续色调彩色图像转换到已给定的颜色色系,处理结果有较好的视觉效果并满足编织要求.

The Least Distance of Vectors Color Error Diffusion Method Used in Given Colors System

The least distance of vectors color error diffusion algorithm is provided. It is better than the traditional color error diffusion methods in the intertwining process, which decomposes the color image into the discrete image that composed by the given colors. The algorithm, which takes each pixel RGB values as a vector, applies vector error diffusion coefficient matrix to calculating the vector error summation. And then get the sum vector of the original RGB pixel value and the vector error summation. It separately calculates the distance between the sum vector and each given color vectors, and selects the least distance vector from the given color vectors as output. The simulation results show that the algorithm converted a continuous tone color image to the given colors system, its handling of the results is more consistent with human visual properties and meets the demands of the intertwining process.