说明：  圖片檔案格式的轉換其實很簡單,應為所有轉換格式的演算法都包在cvLoadImage(),cvSaveImage()裡啦,對OpenCV而言,可以不用去知道如何去實作它的圖檔格式而做到直接開啟的功能,而他讀到的檔案甚至連它的相關資訊全都包在IplImage資料結構裡
(Image file format conversion is very simple, they should convert the format for all algorithms are wrapped in cvLoadImage (), cvSaveImage () where啦, for OpenCV, it may be do not have to know how to implement image file format to do it to direct the function to open, and he read the file or even all of its information wrapped in IplImage data structure li)