VB彩色图像转换为灰度图像，先打开文件并显示在Picture1中，保存转换后的图像，保存为位图文件(*.bmp)|*.bmp，其它格式未测试，不知是否行的通，打开一张JPG格式图片，点击转换按钮，程序右侧即显示转换的图像，处理过程有点慢，请慢慢等待处理结果-VB convert color images to grayscale image, first open the file and displayed in Picture1, save the converted image, save it as a bitmap file (* bmp.) |.* Bmp, other formats are not tested, I do not know whether do the same, open a JPG format picture, click the Convert button on the right to display the image conversion program that is, the process is quite slow, slowly waiting for the results