影像校正

當你在聽演講時，可能會坐在非正面面對講台的位置，
這時可以用相機拍下投影片，程式能自動抓取投影片並校正 When you listen to the speech, could sit in the front face of the position of non-podium,
At this time can be captured with the camera slides, the program can automatically grab slide and corrected