可以玩h5的网站,淘宝客优惠卷网站模板,九曲网站建设,网站布局f函数名功能说明cv2.imread()读取图像文件cv2.imshow()显示图像窗口cv2.imwrite()保存图像文件cv2.cvtColor()颜色空间转换cv2.resize()图像缩放cv2.flip()图像翻转cv2.rectangle()绘制矩形cv2.circle()绘制圆形cv2.line()绘制直线cv2.putText()绘制文本cv2.bitwise_and()与操作…函数名功能说明cv2.imread()读取图像文件cv2.imshow()显示图像窗口cv2.imwrite()保存图像文件cv2.cvtColor()颜色空间转换cv2.resize()图像缩放cv2.flip()图像翻转cv2.rectangle()绘制矩形cv2.circle()绘制圆形cv2.line()绘制直线cv2.putText()绘制文本cv2.bitwise_and()与操作cv2.bitwise_or()或操作cv2.bitwise_not()非操作cv2.bitwise_xor()异或操作cv2.add()加法运算cv2.subtract()减法运算cv2.multiply()乘法运算cv2.divide()除法运算cv2.threshold()图像阈值处理cv2.adaptiveThreshold()自适应阈值处理cv2.inRange()指定范围内的像素值提取cv2.erode()腐蚀操作cv2.dilate()膨胀操作cv2.morphologyEx()形态学操作cv2.blur()均值模糊cv2.GaussianBlur()高斯模糊cv2.medianBlur()中值模糊cv2.bilateralFilter()双边滤波cv2.Canny()边缘检测cv2.Sobel()Sobel算子边缘检测cv2.Laplacian()Laplacian算子边缘检测cv2.HoughLines()霍夫直线检测cv2.HoughCircles()霍夫圆检测cv2.findContours()查找轮廓cv2.drawContours()绘制轮廓cv2.approxPolyDP()多边形逼近cv2.minAreaRect()最小外接矩形cv2.minEnclosingCircle()最小外接圆cv2.matchTemplate()模板匹配cv2.goodFeaturesToTrack()角点检测cv2.cornerHarris()角点检测cv2.CascadeClassifier()级联分类器cv2.detectMultiScale()对象检测cv2.createCLAHE()创建自适应直方图均衡化对象cv2.equalizeHist()直方图均衡化cv2.warpAffine()仿射变换cv2.getRotationMatrix2D()获取旋转矩阵cv2.getPerspectiveTransform()获取透视变换矩阵cv2.warpPerspective()透视变换cv2.getPerspectiveTransform()获取透视变换矩阵cv2.remap()图像重映射cv2.resize()图像缩放cv2.getAffineTransform()获取仿射变换矩阵cv2.boundingRect()获取轮廓的边界矩形cv2.minAreaRect()获取轮廓的最小外接矩形cv2.minEnclosingCircle()获取轮廓的最小外接圆cv2.arcLength()计算轮廓的周长cv2.contourArea()计算轮廓的面积cv2.pointPolygonTest()判断点与轮廓关系cv2.convexHull()计算轮廓的凸包cv2.isContourConvex()判断轮廓是否凸性cv2.boxPoints()获取旋转矩形的四个顶点cv2.fitEllipse()拟合椭圆cv2.minEnclosingTriangle()获取点集的最小外接三角形cv2.fillPoly()填充多边形cv2.polylines()绘制多边形线段cv2.isPointInPoly()判断点是否在多边形内cv2.resize()图像缩放cv2.VideoCapture()打开视频文件或设备cv2.VideoWriter()创建视频写入对象cv2.VideoCapture().read()读取视频帧cv2.waitKey()等待键盘输入cv2.destroyAllWindows()关闭所有图像窗口cv2.getTrackbarPos()获取滑动条位置cv2.createTrackbar()创建滑动条cv2.setMouseCallback()设置鼠标回调函数cv2.getStructuringElement()获取结构元素cv2.distanceTransform()距离变换cv2.remap()图像重映射cv2.getOptimalNewCameraMatrix()获取最优相机矩阵cv2.initUndistortRectifyMap()初始化畸变校正映射cv2.undistort()畸变校正cv2.SIFT_create()创建SIFT特征检测器cv2.SURF_create()创建SURF特征检测器cv2.ORB_create()创建ORB特征检测器cv2.drawKeypoints()绘制关键点cv2.drawMatches()绘制匹配结果cv2.findHomography()寻找单应性矩阵cv2.Rodrigues()旋转向量和旋转矩阵之间的相互转换cv2.solvePnP()求解透视投影问题cv2.findEssentialMat()寻找本质矩阵cv2.findFundamentalMat()寻找基础矩阵cv2.stereoRectify()立体校正cv2.reprojectImageTo3D()重投影深度图像cv2.drawContours()绘制轮廓cv2.polylines()绘制多边形线段cv2.fillPoly()填充多边形cv2.line()绘制直线cv2.circle()绘制圆形cv2.ellipse()绘制椭圆cv2.putText()绘制文本cv2.addWeighted()权重叠加cv2.split()分离通道cv2.merge()合并通道cv2.cvtColor()颜色空间转换cv2.resize()图像缩放cv2.getRotationMatrix2D()获取旋转矩阵cv2.getAffineTransform()获取仿射变换矩阵
