改进矢量中值滤波在图像处理中的应用研究

The Application Research of Modified Vector Median Filtering in Image Processing

针对传统矢量中值滤波计算量大且复杂的问题,通过分析彩色图像滤波的一般方法,提出了彩色图像矢量中值滤波的改进算法.经与传统矢量中值滤波和理想滤波器实验结果对比可知,该算法不仅具有矢量中值滤波法去噪、保边缘和不增加新颜色的优点,而且具有计算量小、算法简单和易于实现的优点.此算法已应用于葡萄病害图像处理,并在Visual C++软件平台上进行验证,结果证明该方法可行,在完成病害图像增强的同时,对噪声有较好的抑制作用.

Aiming at the problems of high computational complexity of traditional vector median filtering, a modified and effective algorithm is presented by analyzing the general algorithm of color image filtering, The results of traditional vector median filtering and ideal filtering are compared, and we know that the modified algorithm has not only many advantages such as eliminating noise, keeping edge and adding no new color, etc, but also has advantages such as small amount of calculation, and is simple and easy to realize. This modified algorithm has been applied in processing grape disease image, and it is proved to be feasible by Visual C ＋ ＋. It Is good at not only enhancing the disease image but also restraining noise.