The apples in the images taken under frontlighting and backlighting conditions were recognized.The contour images were gained through the pretreatments such as noise removal, area filling etc.

• 在顺光、逆光等不同情况下对拍摄的苹果图像进行了识别，并对识别后的图像进行消除噪声、区域填充等预处理，获得苹果的轮廓图像。