opencv for iOS：cvHoughCircles在iPhone和模拟器上的结果不一样

Question

iOS版Opencv库存在问题。使用cvHoughCircles时，模拟器上的结果与iPhone不同。这是代码

  

CvSeq * circles = cvHoughCircles（灰色，//输入图像

                               storage, //Memory Storage
                               CV_HOUGH_GRADIENT, //Detection method
                               2, //Inverse ratio
                               gray->width/8, //Minimum distance between the centers of the detected circles
                               100, //Higher threshold for canny edge detector
                               20, //Threshold at the center detection stage
                               gray->height/6, //min radius
                               gray->height/2 //max radius
                               );

模拟器上的

circles->total = 0，但iPhone上为1。这是图像

非常感谢任何帮助。