使用openCV偵測橢圓,並於外矩形框中畫記實線. 不同於範例之偵測方式.外舉行框可旋轉角度表示.-Use openCV ellipse detection, and in line outside the rectangular box drawing documentary. Different from the examples of detection methods. Outside the box can be held

分水岭算法的自动标记，改进了一下，效果一般 -Automatic marking of watershed algorithm