说明：  该文档是一个word文档，需要稍作调整即可使用的C文档，主要是想图像上写数字，然后用于方便调试中间结果的一个小模块，在实际当想要知道图像里面的中间结果，方便查看的时候，可以将其显示到图像上，方便查看，比如对比度算法的结果，就可以看看这幅图像的对比度是多少。
(This document is a word document, it is necessary to make a little adjustment can use C document, main is to want to write Numbers in the image, then convenient for debugging the intermediate results of a small module, in the middle of the actual when want to know the inside of the image as a result, the easy view, it can be displayed on the image, convenient check, contrast the results of the algorithm, for example, you can see how much is the contrast of the image.)