Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
我需要保存彩色图像再转换成灰度图像，这个彩色图像后面处理的时候也需要用到。该怎么解决呢？我现在是彩色图像转换成灰度图像后彩色图像也没了