Uses of Class
org.opencv.core.Scalar

Packages that use Scalar

Package	Description
org.opencv.aruco
org.opencv.calib3d
org.opencv.core
org.opencv.dnn
org.opencv.face
org.opencv.features2d
org.opencv.imgproc
org.opencv.plot
org.opencv.ximgproc

Uses of Scalar in org.opencv.aruco

Methods in org.opencv.aruco with parameters of type Scalar

Modifier and Type	Method	Description
static void	Aruco.drawDetectedCornersCharuco(Mat image, Mat charucoCorners, Mat charucoIds, Scalar cornerColor)	Draws a set of Charuco corners
static void	Aruco.drawDetectedDiamonds(Mat image, List<Mat> diamondCorners, Mat diamondIds, Scalar borderColor)	Draw a set of detected ChArUco Diamond markers
static void	Aruco.drawDetectedMarkers(Mat image, List<Mat> corners, Mat ids, Scalar borderColor)	Draw detected markers in image

Uses of Scalar in org.opencv.calib3d

Methods in org.opencv.calib3d that return Scalar

Modifier and Type	Method	Description
static Scalar	Calib3d.estimateChessboardSharpness(Mat image, Size patternSize, Mat corners)	Estimates the sharpness of a detected chessboard.
static Scalar	Calib3d.estimateChessboardSharpness(Mat image, Size patternSize, Mat corners, float rise_distance)	Estimates the sharpness of a detected chessboard.
static Scalar	Calib3d.estimateChessboardSharpness(Mat image, Size patternSize, Mat corners, float rise_distance, boolean vertical)	Estimates the sharpness of a detected chessboard.
static Scalar	Calib3d.estimateChessboardSharpness(Mat image, Size patternSize, Mat corners, float rise_distance, boolean vertical, Mat sharpness)	Estimates the sharpness of a detected chessboard.

Uses of Scalar in org.opencv.core

Methods in org.opencv.core that return Scalar

Modifier and Type	Method	Description
static Scalar	Scalar.all(double v)
Scalar	Scalar.clone()
Scalar	Scalar.conj()
static Scalar	Core.mean(Mat src)	Calculates an average (mean) of array elements.
static Scalar	Core.mean(Mat src, Mat mask)	Calculates an average (mean) of array elements.
Scalar	Scalar.mul(Scalar it)
Scalar	Scalar.mul(Scalar it, double scale)
static Scalar	Core.sumElems(Mat src)	Calculates the sum of array elements.
static Scalar	Core.trace(Mat mtx)	Returns the trace of a matrix.

Methods in org.opencv.core with parameters of type Scalar

Modifier and Type	Method	Description
static void	Core.absdiff(Mat src1, Scalar src2, Mat dst)
static void	Core.add(Mat src1, Scalar src2, Mat dst)
static void	Core.add(Mat src1, Scalar src2, Mat dst, Mat mask)
static void	Core.add(Mat src1, Scalar src2, Mat dst, Mat mask, int dtype)
static void	Core.compare(Mat src1, Scalar src2, Mat dst, int cmpop)
static void	Core.copyMakeBorder(Mat src, Mat dst, int top, int bottom, int left, int right, int borderType, Scalar value)	Forms a border around an image.
static void	Core.divide(Mat src1, Scalar src2, Mat dst)
static void	Core.divide(Mat src1, Scalar src2, Mat dst, double scale)
static void	Core.divide(Mat src1, Scalar src2, Mat dst, double scale, int dtype)
static void	Core.inRange(Mat src, Scalar lowerb, Scalar upperb, Mat dst)	Checks if array elements lie between the elements of two other arrays.
static void	Core.max(Mat src1, Scalar src2, Mat dst)
static void	Core.min(Mat src1, Scalar src2, Mat dst)
Scalar	Scalar.mul(Scalar it)
Scalar	Scalar.mul(Scalar it, double scale)
static void	Core.multiply(Mat src1, Scalar src2, Mat dst)
static void	Core.multiply(Mat src1, Scalar src2, Mat dst, double scale)
static void	Core.multiply(Mat src1, Scalar src2, Mat dst, double scale, int dtype)
static void	Core.setIdentity(Mat mtx, Scalar s)	Initializes a scaled identity matrix.
Mat	Mat.setTo(Scalar s)
Mat	Mat.setTo(Scalar value, Mat mask)
static void	Core.subtract(Mat src1, Scalar src2, Mat dst)
static void	Core.subtract(Mat src1, Scalar src2, Mat dst, Mat mask)
static void	Core.subtract(Mat src1, Scalar src2, Mat dst, Mat mask, int dtype)

Constructors in org.opencv.core with parameters of type Scalar

Constructor	Description
Mat(int[] sizes, int type, Scalar s)
Mat(int rows, int cols, int type, Scalar s)
Mat(Size size, int type, Scalar s)

Uses of Scalar in org.opencv.dnn

Methods in org.opencv.dnn with parameters of type Scalar

Modifier and Type	Method	Description
static Mat	Dnn.blobFromImage(Mat image, double scalefactor, Size size, Scalar mean)	Creates 4-dimensional blob from image.
static Mat	Dnn.blobFromImage(Mat image, double scalefactor, Size size, Scalar mean, boolean swapRB)	Creates 4-dimensional blob from image.
static Mat	Dnn.blobFromImage(Mat image, double scalefactor, Size size, Scalar mean, boolean swapRB, boolean crop)	Creates 4-dimensional blob from image.
static Mat	Dnn.blobFromImage(Mat image, double scalefactor, Size size, Scalar mean, boolean swapRB, boolean crop, int ddepth)	Creates 4-dimensional blob from image.
static Mat	Dnn.blobFromImages(List<Mat> images, double scalefactor, Size size, Scalar mean)	Creates 4-dimensional blob from series of images.
static Mat	Dnn.blobFromImages(List<Mat> images, double scalefactor, Size size, Scalar mean, boolean swapRB)	Creates 4-dimensional blob from series of images.
static Mat	Dnn.blobFromImages(List<Mat> images, double scalefactor, Size size, Scalar mean, boolean swapRB, boolean crop)	Creates 4-dimensional blob from series of images.
static Mat	Dnn.blobFromImages(List<Mat> images, double scalefactor, Size size, Scalar mean, boolean swapRB, boolean crop, int ddepth)	Creates 4-dimensional blob from series of images.
void	Net.setInput(Mat blob, String name, double scalefactor, Scalar mean)	Sets the new input value for the network
Model	Model.setInputMean(Scalar mean)	Set mean value for frame.
void	Model.setInputParams(double scale, Size size, Scalar mean)	Set preprocessing parameters for frame.
void	Model.setInputParams(double scale, Size size, Scalar mean, boolean swapRB)	Set preprocessing parameters for frame.
void	Model.setInputParams(double scale, Size size, Scalar mean, boolean swapRB, boolean crop)	Set preprocessing parameters for frame.

Uses of Scalar in org.opencv.face

Methods in org.opencv.face with parameters of type Scalar

Modifier and Type	Method	Description
static void	Face.drawFacemarks(Mat image, Mat points, Scalar color)	Utility to draw the detected facial landmark points

Uses of Scalar in org.opencv.features2d

Methods in org.opencv.features2d with parameters of type Scalar

Modifier and Type	Method	Description
static void	Features2d.drawKeypoints(Mat image, MatOfKeyPoint keypoints, Mat outImage, Scalar color)	Draws keypoints.
static void	Features2d.drawKeypoints(Mat image, MatOfKeyPoint keypoints, Mat outImage, Scalar color, int flags)	Draws keypoints.
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, int matchesThickness, Scalar matchColor)
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, int matchesThickness, Scalar matchColor, Scalar singlePointColor)
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, int matchesThickness, Scalar matchColor, Scalar singlePointColor, MatOfByte matchesMask)
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, int matchesThickness, Scalar matchColor, Scalar singlePointColor, MatOfByte matchesMask, int flags)
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, Scalar matchColor)	Draws the found matches of keypoints from two images.
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, Scalar matchColor, Scalar singlePointColor)	Draws the found matches of keypoints from two images.
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, Scalar matchColor, Scalar singlePointColor, MatOfByte matchesMask)	Draws the found matches of keypoints from two images.
static void	Features2d.drawMatches(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, MatOfDMatch matches1to2, Mat outImg, Scalar matchColor, Scalar singlePointColor, MatOfByte matchesMask, int flags)	Draws the found matches of keypoints from two images.
static void	Features2d.drawMatchesKnn(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, List<MatOfDMatch> matches1to2, Mat outImg, Scalar matchColor)
static void	Features2d.drawMatchesKnn(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, List<MatOfDMatch> matches1to2, Mat outImg, Scalar matchColor, Scalar singlePointColor)
static void	Features2d.drawMatchesKnn(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, List<MatOfDMatch> matches1to2, Mat outImg, Scalar matchColor, Scalar singlePointColor, List<MatOfByte> matchesMask)
static void	Features2d.drawMatchesKnn(Mat img1, MatOfKeyPoint keypoints1, Mat img2, MatOfKeyPoint keypoints2, List<MatOfDMatch> matches1to2, Mat outImg, Scalar matchColor, Scalar singlePointColor, List<MatOfByte> matchesMask, int flags)

Uses of Scalar in org.opencv.imgproc

Methods in org.opencv.imgproc with parameters of type Scalar

Modifier and Type	Method	Description
static void	Imgproc.arrowedLine(Mat img, Point pt1, Point pt2, Scalar color)	Draws a arrow segment pointing from the first point to the second one.
static void	Imgproc.arrowedLine(Mat img, Point pt1, Point pt2, Scalar color, int thickness)	Draws a arrow segment pointing from the first point to the second one.
static void	Imgproc.arrowedLine(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int line_type)	Draws a arrow segment pointing from the first point to the second one.
static void	Imgproc.arrowedLine(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int line_type, int shift)	Draws a arrow segment pointing from the first point to the second one.
static void	Imgproc.arrowedLine(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int line_type, int shift, double tipLength)	Draws a arrow segment pointing from the first point to the second one.
static void	Imgproc.circle(Mat img, Point center, int radius, Scalar color)	Draws a circle.
static void	Imgproc.circle(Mat img, Point center, int radius, Scalar color, int thickness)	Draws a circle.
static void	Imgproc.circle(Mat img, Point center, int radius, Scalar color, int thickness, int lineType)	Draws a circle.
static void	Imgproc.circle(Mat img, Point center, int radius, Scalar color, int thickness, int lineType, int shift)	Draws a circle.
static void	Imgproc.dilate(Mat src, Mat dst, Mat kernel, Point anchor, int iterations, int borderType, Scalar borderValue)	Dilates an image by using a specific structuring element.
static void	Imgproc.drawContours(Mat image, List<MatOfPoint> contours, int contourIdx, Scalar color)	Draws contours outlines or filled contours.
static void	Imgproc.drawContours(Mat image, List<MatOfPoint> contours, int contourIdx, Scalar color, int thickness)	Draws contours outlines or filled contours.
static void	Imgproc.drawContours(Mat image, List<MatOfPoint> contours, int contourIdx, Scalar color, int thickness, int lineType)	Draws contours outlines or filled contours.
static void	Imgproc.drawContours(Mat image, List<MatOfPoint> contours, int contourIdx, Scalar color, int thickness, int lineType, Mat hierarchy)	Draws contours outlines or filled contours.
static void	Imgproc.drawContours(Mat image, List<MatOfPoint> contours, int contourIdx, Scalar color, int thickness, int lineType, Mat hierarchy, int maxLevel)	Draws contours outlines or filled contours.
static void	Imgproc.drawContours(Mat image, List<MatOfPoint> contours, int contourIdx, Scalar color, int thickness, int lineType, Mat hierarchy, int maxLevel, Point offset)	Draws contours outlines or filled contours.
static void	Imgproc.drawMarker(Mat img, Point position, Scalar color)	Draws a marker on a predefined position in an image.
static void	Imgproc.drawMarker(Mat img, Point position, Scalar color, int markerType)	Draws a marker on a predefined position in an image.
static void	Imgproc.drawMarker(Mat img, Point position, Scalar color, int markerType, int markerSize)	Draws a marker on a predefined position in an image.
static void	Imgproc.drawMarker(Mat img, Point position, Scalar color, int markerType, int markerSize, int thickness)	Draws a marker on a predefined position in an image.
static void	Imgproc.drawMarker(Mat img, Point position, Scalar color, int markerType, int markerSize, int thickness, int line_type)	Draws a marker on a predefined position in an image.
static void	Imgproc.ellipse(Mat img, Point center, Size axes, double angle, double startAngle, double endAngle, Scalar color)	Draws a simple or thick elliptic arc or fills an ellipse sector.
static void	Imgproc.ellipse(Mat img, Point center, Size axes, double angle, double startAngle, double endAngle, Scalar color, int thickness)	Draws a simple or thick elliptic arc or fills an ellipse sector.
static void	Imgproc.ellipse(Mat img, Point center, Size axes, double angle, double startAngle, double endAngle, Scalar color, int thickness, int lineType)	Draws a simple or thick elliptic arc or fills an ellipse sector.
static void	Imgproc.ellipse(Mat img, Point center, Size axes, double angle, double startAngle, double endAngle, Scalar color, int thickness, int lineType, int shift)	Draws a simple or thick elliptic arc or fills an ellipse sector.
static void	Imgproc.ellipse(Mat img, RotatedRect box, Scalar color)
static void	Imgproc.ellipse(Mat img, RotatedRect box, Scalar color, int thickness)
static void	Imgproc.ellipse(Mat img, RotatedRect box, Scalar color, int thickness, int lineType)
static void	Imgproc.erode(Mat src, Mat dst, Mat kernel, Point anchor, int iterations, int borderType, Scalar borderValue)	Erodes an image by using a specific structuring element.
static void	Imgproc.fillConvexPoly(Mat img, MatOfPoint points, Scalar color)	Fills a convex polygon.
static void	Imgproc.fillConvexPoly(Mat img, MatOfPoint points, Scalar color, int lineType)	Fills a convex polygon.
static void	Imgproc.fillConvexPoly(Mat img, MatOfPoint points, Scalar color, int lineType, int shift)	Fills a convex polygon.
static void	Imgproc.fillPoly(Mat img, List<MatOfPoint> pts, Scalar color)	Fills the area bounded by one or more polygons.
static void	Imgproc.fillPoly(Mat img, List<MatOfPoint> pts, Scalar color, int lineType)	Fills the area bounded by one or more polygons.
static void	Imgproc.fillPoly(Mat img, List<MatOfPoint> pts, Scalar color, int lineType, int shift)	Fills the area bounded by one or more polygons.
static void	Imgproc.fillPoly(Mat img, List<MatOfPoint> pts, Scalar color, int lineType, int shift, Point offset)	Fills the area bounded by one or more polygons.
static int	Imgproc.floodFill(Mat image, Mat mask, Point seedPoint, Scalar newVal)	Fills a connected component with the given color.
static int	Imgproc.floodFill(Mat image, Mat mask, Point seedPoint, Scalar newVal, Rect rect)	Fills a connected component with the given color.
static int	Imgproc.floodFill(Mat image, Mat mask, Point seedPoint, Scalar newVal, Rect rect, Scalar loDiff)	Fills a connected component with the given color.
static int	Imgproc.floodFill(Mat image, Mat mask, Point seedPoint, Scalar newVal, Rect rect, Scalar loDiff, Scalar upDiff)	Fills a connected component with the given color.
static int	Imgproc.floodFill(Mat image, Mat mask, Point seedPoint, Scalar newVal, Rect rect, Scalar loDiff, Scalar upDiff, int flags)	Fills a connected component with the given color.
static void	Imgproc.line(Mat img, Point pt1, Point pt2, Scalar color)	Draws a line segment connecting two points.
static void	Imgproc.line(Mat img, Point pt1, Point pt2, Scalar color, int thickness)	Draws a line segment connecting two points.
static void	Imgproc.line(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int lineType)	Draws a line segment connecting two points.
static void	Imgproc.line(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int lineType, int shift)	Draws a line segment connecting two points.
static void	Imgproc.morphologyEx(Mat src, Mat dst, int op, Mat kernel, Point anchor, int iterations, int borderType, Scalar borderValue)	Performs advanced morphological transformations.
static void	Imgproc.polylines(Mat img, List<MatOfPoint> pts, boolean isClosed, Scalar color)	Draws several polygonal curves.
static void	Imgproc.polylines(Mat img, List<MatOfPoint> pts, boolean isClosed, Scalar color, int thickness)	Draws several polygonal curves.
static void	Imgproc.polylines(Mat img, List<MatOfPoint> pts, boolean isClosed, Scalar color, int thickness, int lineType)	Draws several polygonal curves.
static void	Imgproc.polylines(Mat img, List<MatOfPoint> pts, boolean isClosed, Scalar color, int thickness, int lineType, int shift)	Draws several polygonal curves.
static void	Imgproc.putText(Mat img, String text, Point org, int fontFace, double fontScale, Scalar color)	Draws a text string.
static void	Imgproc.putText(Mat img, String text, Point org, int fontFace, double fontScale, Scalar color, int thickness)	Draws a text string.
static void	Imgproc.putText(Mat img, String text, Point org, int fontFace, double fontScale, Scalar color, int thickness, int lineType)	Draws a text string.
static void	Imgproc.putText(Mat img, String text, Point org, int fontFace, double fontScale, Scalar color, int thickness, int lineType, boolean bottomLeftOrigin)	Draws a text string.
static void	Imgproc.rectangle(Mat img, Point pt1, Point pt2, Scalar color)	Draws a simple, thick, or filled up-right rectangle.
static void	Imgproc.rectangle(Mat img, Point pt1, Point pt2, Scalar color, int thickness)	Draws a simple, thick, or filled up-right rectangle.
static void	Imgproc.rectangle(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int lineType)	Draws a simple, thick, or filled up-right rectangle.
static void	Imgproc.rectangle(Mat img, Point pt1, Point pt2, Scalar color, int thickness, int lineType, int shift)	Draws a simple, thick, or filled up-right rectangle.
static void	Imgproc.rectangle(Mat img, Rect rec, Scalar color)	use rec parameter as alternative specification of the drawn rectangle: `r.tl() and r.br()-Point(1,1)` are opposite corners
static void	Imgproc.rectangle(Mat img, Rect rec, Scalar color, int thickness)	use rec parameter as alternative specification of the drawn rectangle: `r.tl() and r.br()-Point(1,1)` are opposite corners
static void	Imgproc.rectangle(Mat img, Rect rec, Scalar color, int thickness, int lineType)	use rec parameter as alternative specification of the drawn rectangle: `r.tl() and r.br()-Point(1,1)` are opposite corners
static void	Imgproc.rectangle(Mat img, Rect rec, Scalar color, int thickness, int lineType, int shift)	use rec parameter as alternative specification of the drawn rectangle: `r.tl() and r.br()-Point(1,1)` are opposite corners
static void	Imgproc.remap(Mat src, Mat dst, Mat map1, Mat map2, int interpolation, int borderMode, Scalar borderValue)	Applies a generic geometrical transformation to an image.
static void	Imgproc.warpAffine(Mat src, Mat dst, Mat M, Size dsize, int flags, int borderMode, Scalar borderValue)	Applies an affine transformation to an image.
static void	Imgproc.warpPerspective(Mat src, Mat dst, Mat M, Size dsize, int flags, int borderMode, Scalar borderValue)	Applies a perspective transformation to an image.

Uses of Scalar in org.opencv.plot

Methods in org.opencv.plot with parameters of type Scalar

Modifier and Type	Method	Description
void	Plot2d.setPlotAxisColor(Scalar _plotAxisColor)
void	Plot2d.setPlotBackgroundColor(Scalar _plotBackgroundColor)
void	Plot2d.setPlotGridColor(Scalar _plotGridColor)
void	Plot2d.setPlotLineColor(Scalar _plotLineColor)
void	Plot2d.setPlotTextColor(Scalar _plotTextColor)

Uses of Scalar in org.opencv.ximgproc

Methods in org.opencv.ximgproc with parameters of type Scalar

Modifier and Type	Method	Description
void	FastLineDetector.drawSegments(Mat image, Mat lines, boolean draw_arrow, Scalar linecolor)	Draws the line segments on a given image.
void	FastLineDetector.drawSegments(Mat image, Mat lines, boolean draw_arrow, Scalar linecolor, int linethickness)	Draws the line segments on a given image.