OpenCvSharp Documented Class Library

OpenCvSharp Documented Class Library

AdaptiveThresholdTypes Enumeration

AgastFeatureDetector Class

AgastFeatureDetector.DetectorType Enumeration

AKAZEDescriptorType Enumeration

Algorithm Class

AlgorithmParamType Enumeration

BackgroundSubtractor Class

BackgroundSubtractorGMG Class

BackgroundSubtractorKNN Class

BackgroundSubtractorMOG Class

BackgroundSubtractorMOG2 Class

BFMatcher Class

BorderTypes Enumeration

BOWImgDescriptorExtractor Class

BOWKMeansTrainer Class

BOWTrainer Class

BroxOpticalFlow Class

ButtonTypes Enumeration

CalibrateCRF Class

CalibrateDebevec Class

CalibrationFlags Enumeration

CameraChannels Enumeration

CapturePosAviRatio Enumeration

CaptureType Enumeration

CascadeClassifier Class

ChessboardFlags Enumeration

CircleSegment Structure

CmpTypes Enumeration

ColorConversionCodes Enumeration

ColormapTypes Enumeration

ConnectedComponents Class

ConnectedComponents.Blob Class

ConnectedComponentsAlgorithmsTypes Enumeration

ConnectedComponentsTypes Enumeration

ContourApproximationModes Enumeration

ConvertImageModes Enumeration

CovarFlags Enumeration

CpuFeatures Enumeration

CriteriaType Enumeration

Cv2.FishEye Class

Cv2.PartitionPredicate(T) Delegate

CvErrorCallback Delegate

CvTrackbar Class

DctFlags Enumeration

DecompTypes Enumeration

DenseOpticalFlowExt Class

DescriptorMatcher Class

DetectionROI Class

DftFlags Enumeration

DisposableCvObject Class

DisposableObject Class

DistanceMaskSize Enumeration

DistanceTransformLabelTypes Enumeration

DistanceTypes Enumeration

DistributionType Enumeration

DMatch Structure

DrawMatchesFlags Enumeration

DualTVL1OpticalFlow Class

EdgePreservingMethods Enumeration

EM.StartStep Enumeration

EM.Types Enumeration

ErrorCode Enumeration

EssentialMatMethod Enumeration

ExceptionStatus Enumeration

FarnebackOpticalFlow Class

FastFeatureDetector Class

FASTType Enumeration

Feature2D Class

FileNode.Types Enumeration

FileNodeIterator Class

FileStorage Class

FileStorage.Mode Enumeration

FileStorage.States Enumeration

FindCirclesGridFlags Enumeration

FishEyeCalibrationFlags Enumeration

FlannBasedMatcher Class

FlipMode Enumeration

FloodFillFlags Enumeration

FormatType Enumeration

FourCC Structure

FrameSource Class

FundamentalMatMethod Enumeration

GemmFlags Enumeration

GeneralizedHough Class

GeneralizedHoughBallard Class

GeneralizedHoughGuil Class

GFTTDetector Class

GrabCutClasses Enumeration

GrabCutModes Enumeration

HaarDetectionType Enumeration

HausdorffDistanceExtractor Class

HersheyFonts Enumeration

HierarchyIndex Class

HistCompMethods Enumeration

HistogramNormType Enumeration

HOGDescriptor Class

HomographyMethods Enumeration

HoughMethods Enumeration

ICvPtrHolder Interface

ImageEncodingParam Class

ImreadModes Enumeration

ImwriteEXRTypeFlags Enumeration

ImwriteFlags Enumeration

ImwritePAMFlags Enumeration

ImwritePNGFlags Enumeration

InOutArrayKind Enumeration

InpaintMethod Enumeration

InputArray Class

InputOutputArray Class

InterpolationFlags Enumeration

IStdVector(T) Interface

IVec(T) Interface

KalmanFilter Class

KAZEDiffusivityType Enumeration

KeyPoint Structure

KeyPointsFilter Class

KMeansFlags Enumeration

LineIterator Class

LineIterator.Pixel Class

LineSegmentPoint Structure

LineSegmentPolar Structure

LineTypes Enumeration

MarkerTypes Enumeration

Mat.Indexer(T) Class

Mat.UnsafeIndexer(T) Class

Mat(TElem) Class

Mat(TElem).Indexer Class

MatDiagType Enumeration

MatExprRowColIndexer Class

MatForeachFunctionByte Delegate

MatForeachFunctionDouble Delegate

MatForeachFunctionFloat Delegate

MatForeachFunctionInt16 Delegate

MatForeachFunctionInt32 Delegate

MatForeachFunctionVec2b Delegate

MatForeachFunctionVec2d Delegate

MatForeachFunctionVec2f Delegate

MatForeachFunctionVec2i Delegate

MatForeachFunctionVec2s Delegate

MatForeachFunctionVec3b Delegate

MatForeachFunctionVec3d Delegate

MatForeachFunctionVec3f Delegate

MatForeachFunctionVec3i Delegate

MatForeachFunctionVec3s Delegate

MatForeachFunctionVec4b Delegate

MatForeachFunctionVec4d Delegate

MatForeachFunctionVec4f Delegate

MatForeachFunctionVec4i Delegate

MatForeachFunctionVec4s Delegate

MatForeachFunctionVec6b Delegate

MatForeachFunctionVec6d Delegate

MatForeachFunctionVec6f Delegate

MatForeachFunctionVec6i Delegate

MatForeachFunctionVec6s Delegate

MatIndexer(T) Class

MatType Structure

MergeDebevec Class

MergeExposures Class

MergeMertens Class

Moments.NativeStruct Structure

MorphShapes Enumeration

MorphTypes Enumeration

MouseCallback Delegate

MouseEventFlags Enumeration

MouseEventTypes Enumeration

NativeMethods Class

NextEdgeType Enumeration

NormTypes Enumeration

OpenCVException Class

OpenCvSharpException Class

OpticalFlowFlags Enumeration

ORBScoreType Enumeration

OutputArray Class

OutputArrayOfMatList Class

OutputArrayOfStructList(T) Class

PCA.Flags Enumeration

PixelConnectivity Enumeration

Point Structure

Point2d Structure

Point2f Structure

Point3d Structure

Point3f Structure

Point3i Structure

ProjectionType Enumeration

PyrLKOpticalFlow Class

QRCodeDetector Class

Range Structure

Rangef Structure

Rect2d Structure

Rect2f Structure

RectanglesIntersectTypes Enumeration

ReduceDimension Enumeration

ReduceTypes Enumeration

RetrievalModes Enumeration

RNG_MT19937 Structure

RobustEstimationAlgorithms Enumeration

RotatedRect Structure

RotateFlags Enumeration

Scalar Structure

SeamlessCloneMethods Enumeration

ShapeContextDistanceExtractor Class

ShapeDistanceExtractor Class

ShapeMatchModes Enumeration

SimilarRects Class

SimpleBlobDetector Class

SimpleBlobDetector.Params Class

SimpleBlobDetector.WParams Structure

Size2d Structure

Size2f Structure

SolveLPResult Enumeration

SolvePnPFlags Enumeration

SortFlags Enumeration

SparseMat Class

SparseMat.Indexer(T) Class

SparseMatIndexer(T) Class

StdString Class

StereoMatcher Class

StereoRectificationFlags Enumeration

StereoSGBM Class

StereoSGBMMode Enumeration

Stitcher.Mode Enumeration

Stitcher.Status Enumeration

SuperResolution Class

SVD.Flags Enumeration

TemplateMatchModes Enumeration

TermCriteria Structure

TextDetector Class

TextDetectorCNN Class

ThresholdTypes Enumeration

TonemapDrago Class

TonemapMantiuk Class

TonemapReinhard Class

TrackbarCallback Delegate

TrackbarCallbackNative Delegate

Vec2b Structure

Vec2d Structure

Vec2f Structure

Vec2i Structure

Vec2s Structure

Vec2w Structure

Vec3b Structure

Vec3d Structure

Vec3f Structure

Vec3i Structure

Vec3s Structure

Vec3w Structure

Vec4b Structure

Vec4d Structure

Vec4f Structure

Vec4i Structure

Vec4s Structure

Vec4w Structure

Vec6b Structure

Vec6d Structure

Vec6f Structure

Vec6i Structure

Vec6s Structure

Vec6w Structure

VectorOfByte Class

VectorOfDMatch Class

VectorOfDouble Class

VectorOfDTreesNode Class

VectorOfFloat Class

VectorOfInt32 Class

VectorOfKeyPoint Class

VectorOfMat Class

VectorOfPoint Class

VectorOfPoint2d Class

VectorOfPoint2f Class

VectorOfPoint3f Class

VectorOfRect Class

VectorOfRect2d Class

VectorOfRotatedRect Class

VectorOfSByte Class

VectorOfString Class

VectorOfVec2f Class

VectorOfVec3f Class

VectorOfVec4f Class

VectorOfVec4i Class

VectorOfVec6d Class

VectorOfVectorDMatch Class

VectorOfVectorDouble Class

VectorOfVectorFloat Class

VectorOfVectorInt32 Class

VectorOfVectorKeyPoint Class

VectorOfVectorPoint Class

VectorOfVectorPoint2f Class

VideoCapture Class

VideoCaptureAPIs Enumeration

VideoCaptureProperties Enumeration

VideoWriter Class

VideoWriterProperties Enumeration

WarpPolarMode Enumeration

WindowMode Enumeration

WindowProperty Enumeration

WindowsLibraryLoader Class

Click or drag to resize

ImwritePNGFlags Enumeration

Imwrite PNG specific flags used to tune the compression algorithm. These flags will be modify the way of PNG image compression and will be passed to the underlying zlib processing stage. The effect of IMWRITE_PNG_StrategyFILTERED is to force more Huffman coding and less string matching; it is somewhat intermediate between IMWRITE_PNG_StrategyDEFAULT and IMWRITE_PNG_StrategyHUFFMAN_ONLY. IMWRITE_PNG_StrategyRLE is designed to be almost as fast as IMWRITE_PNG_StrategyHUFFMAN_ONLY, but give better compression for PNG image data. The strategy parameter only affects the compression ratio but not the correctness of the compressed output even if it is not set appropriately. IMWRITE_PNG_StrategyFIXED prevents the use of dynamic Huffman codes, allowing for a simpler decoder for special applications.

Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0

Syntax

public enum ImwritePNGFlags

Public Enumeration ImwritePNGFlags

public enum class ImwritePNGFlags

type ImwritePNGFlags

Members

	Member name	Value	Description
	StrategyDefault	0	Use this value for normal data.
	StrategyFiltered	1	Use this value for data produced by a filter (or predictor).Filtered data consists mostly of small values with a somewhat random distribution. In this case, the compression algorithm is tuned to compress them better.
	StrategyHuffmanOnly	2	Use this value to force Huffman encoding only (no string match).
	StrategyRLE	3	Use this value to limit match distances to one (run-length encoding).
	StrategyFixed	4	Using this value prevents the use of dynamic Huffman codes, allowing for a simpler decoder for special applications.

See Also

Reference

OpenCvSharp Namespace