Python版:OpenCV提供了众多图像处理算子和函数,涵盖了各种任务和技术。以下是OpenCV中一些常用的50个算子和函数:
cv2.imread
:用于读取图像文件。cv2.imshow
:用于显示图像。cv2.imwrite
:用于保存图像。cv2.cvtColor
:用于颜色空间转换。cv2.split
:将多通道图像拆分为单通道。cv2.merge
:将多个单通道图像合并成多通道。cv2.resize
:用于调整图像大小。cv2.flip
:用于翻转图像。cv2.rotate
:用于旋转图像。cv2.GaussianBlur
:应用高斯模糊。cv2.Canny
:执行Canny边缘检测。cv2.Sobel
:用于Sobel边缘检测。cv2.Laplacian
:用于Laplacian边缘检测。cv2.threshold
:应用阈值二值化。cv2.adaptiveThreshold
:应用自适应阈值二值化。cv2.contour
:查找图像中的轮廓。cv2.drawContours
:绘制轮廓。cv2.findContours
:查找轮廓并标记。cv2.moments
:计算图像的矩。cv2.matchTemplate
:模板匹配。cv2.HoughLines
:使用霍夫变换检测直线。cv2.HoughCircles
:使用霍夫变换检测圆。cv2.warpAffine
:应用仿射变换。cv2.getPerspectiveTransform
:获取透视变换矩阵。cv2.warpPerspective
:应用透视变换。cv2.erode
:腐蚀操作。cv2.dilate
:膨胀操作。cv2.morphologyEx
:形态学操作。cv2.filter2D
:应用自定义卷积核。cv2.add
:图像相加。cv2.subtract
:图像相减。cv2.multiply
:图像相乘。cv2.divide
:图像相除。cv2.bitwise_and
:按位与操作。cv2.bitwise_or
:按位或操作。cv2.bitwise_not
:按位取反操作。cv2.bitwise_xor
:按位异或操作。cv2.calcHist
:计算直方图。cv2.equalizeHist
:直方图均衡化。cv2.connectedComponents
:图像连通组件分析。cv2.putText
:在图像上绘制文本。cv2.addWeighted
:图像加权叠加。cv2.resize
:调整图像大小。cv2.getAffineTransform
:获取仿射变换矩阵。cv2.getRotationMatrix2D
:获取旋转变换矩阵。cv2.getPerspectiveTransform
:获取透视变换矩阵。cv2.line
:绘制线条。cv2.rectangle
:绘制矩形。cv2.circle
:绘制圆。cv2.ellipse
:绘制椭圆。
对应的C++版本:
以下是上述50个OpenCV函数的C++对应函数名称:
cv2.imread
:cv::imread
cv2.imshow
:cv::imshow
cv2.imwrite
:cv::imwrite
cv2.cvtColor
:cv::cvtColor
cv2.split
:cv::split
cv2.merge
:cv::merge
cv2.resize
:cv::resize
cv2.flip
:cv::flip
cv2.rotate
:通常使用cv::getRotationMatrix2D
和cv::warpAffine
来实现旋转。cv2.GaussianBlur
:cv::GaussianBlur
cv2.Canny
:cv::Canny
cv2.Sobel
:cv::Sobel
cv2.Laplacian
:cv::Laplacian
cv2.threshold
:cv::threshold
cv2.adaptiveThreshold
:cv::adaptiveThreshold
cv2.findContours
:cv::findContours
cv2.drawContours
:cv::drawContours
cv2.findContours
:cv::findContours
cv2.moments
:cv::moments
cv2.matchTemplate
:cv::matchTemplate
cv2.HoughLines
:cv::HoughLines
cv2.HoughCircles
:cv::HoughCircles
cv2.warpAffine
:cv::warpAffine
cv2.getPerspectiveTransform
:cv::getPerspectiveTransform
cv2.warpPerspective
:cv::warpPerspective
cv2.erode
:cv::erode
cv2.dilate
:cv::dilate
cv2.morphologyEx
:cv::morphologyEx
cv2.filter2D
:cv::filter2D
cv2.add
:cv::add
cv2.subtract
:cv::subtract
cv2.multiply
:cv::multiply
cv2.divide
:cv::divide
cv2.bitwise_and
:cv::bitwise_and
cv2.bitwise_or
:cv::bitwise_or
cv2.bitwise_not
:cv::bitwise_not
cv2.bitwise_xor
:cv::bitwise_xor
cv2.calcHist
:cv::calcHist
cv2.equalizeHist
:cv::equalizeHist
cv2.connectedComponents
:cv::connectedComponents
cv2.putText
:cv::putText
cv2.addWeighted
:cv::addWeighted
cv2.resize
:cv::resize
cv2.getAffineTransform
:cv::getAffineTransform
cv2.getRotationMatrix2D
:cv::getRotationMatrix2D
cv2.getPerspectiveTransform
:cv::getPerspectiveTransform
cv2.line
:cv::line
cv2.rectangle
:cv::rectangle
cv2.circle
:cv::circle
cv2.ellipse
:cv::ellipse