Dynamsoft Label Recognition Enumeration - Parameter Mode Enumeration

Enumeration	Description
DLRBinarizationMode	Describes the binarization mode.
DLRGrayscaleTransformationMode	Describes the grayscale transformation mode.
DLRRegionPredetectionMode	Describes the region predetection mode.

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DLRBinarizationMode

Describes the binarization mode.

Declarations

Language	Declaration
C / C++	enum DLRBinarizationMode
.Net	enum Dynamsoft.DLR.EnumDLRBinarizationMode
Android	class EnumDLRBinarizationMode
ObjC / Swift	enum EnumDLRBinarizationMode
Java	class EnumDLRBinarizationMode

Members

Member (except ObjC/Swift)	Member (ObjC/Swift)	Value	Description	Valid Argument(s)
DLR_BM_SKIP	EnumDLRBinarizationModeSkip	0x00	Skips the binarization.	N/A
DLR_BM_AUTO	EnumDLRBinarizationModeAuto	0x01	Not supported yet.	N/A
DLR_BM_LOCAL_BLOCK	EnumDLRBinarizationModeLocalBlock	0x02	Binarizes the image based on the local block.	BlockSizeX BlockSizeY EnableFillBinaryVacancy ThreshValueCoefficient
DLR_BM_THRESHOLD	EnumDLRBinarizationModeThreshold	0x04	Binarizes the image based on given threshold.	BinarizationThreshold

 

DLRGrayscaleTransformationMode

Describes the grayscale transformation mode.

Declarations

Language	Declaration
C / C++	enum DLRGrayscaleTransformationMode
.Net	enum Dynamsoft.DLR.EnumDLRGrayscaleTransformationMode
Android	class EnumDLRGrayscaleTransformationMode
ObjC / Swift	enum EnumDLRGrayscaleTransformationMode
Java	class EnumDLRGrayscaleTransformationMode

Members

Member (except ObjC/Swift)	Member (ObjC/Swift)	Value	Description
DLR_GTM_SKIP	EnumDLRGrayscaleTransformationModeSkip	0x00	Skips grayscale transformation.
DLR_GTM_INVERTED	EnumDLRGrayscaleTransformationModeInverted	0x01	Transforms to inverted grayscale. Recommended for light on dark images.
DLR_GTM_ORIGINAL	EnumDLRGrayscaleTransformationModeOriginal	0x02	Keeps the original grayscale. Recommended for dark on light images.
DLR_GTM_AUTO	EnumDLRGrayscaleTransformationModeAuto	0x04	Lets the library choose an algorithm automatically for grayscale transformation.

 

DLRRegionPredetectionMode

Describes the region predetection mode.

Declarations

Language	Declaration
C / C++	enum DLRRegionPredetectionMode
.Net	enum Dynamsoft.DLR.EnumDLRRegionPredetectionMode
Android	class EnumDLRRegionPredetectionMode
ObjC / Swift	enum EnumDLRRegionPredetectionMode
Java	class EnumDLRRegionPredetectionMode

Members

Member (except ObjC/Swift)	Member (ObjC/Swift)	Value	Description	Valid Argument(s)
DLR_RPM_SKIP	EnumDLRRegionPredetectionModeSkip	0x00	Skips region detection.	N/A
DLR_RPM_AUTO	EnumDLRRegionPredetectionModeAuto	0x01	Lets the library choose an algorithm automatically to detect region.	N/A
DLR_RPM_GENERAL	EnumDLRRegionPredetectionModeGeneral	0x02	Takes the whole image as a region.	N/A
DLR_RPM_GENERAL_RGB_CONTRAST	EnumDLRRegionPredetectionModeGeneralRGBContrast	0x04	Detects region using the general algorithm based on RGB colour contrast.	MinImageDimension Sensitivity SpatialIndexBlockSize
DLR_RPM_GENERAL_GRAY_CONTRAST	EnumDLRRegionPredetectionModeGeneralGrayContrast	0x08	Detects region using the general algorithm based on gray contrast.	MinImageDimension Sensitivity SpatialIndexBlockSize
DLR_RPM_GENERAL_HSV_CONTRAST	EnumDLRRegionPredetectionModeGeneralHSVContrast	0x10	Detects region using the general algorithm based on HSV colour contrast.	AspectRatioRange FindAccurateBoundary ForeAndBackgroundColours HeightRange MinImageDimension Sensitivity SpatialIndexBlockSize WidthRange

 

DLRScaleUpMode

Describes the scale up mode.

Declarations

Language	Declaration
C / C++	enum DLRScaleUpMode
.Net	enum Dynamsoft.DLR.EnumDLRScaleUpMode
Android	class EnumDLRScaleUpMode
ObjC / Swift	enum EnumDLRScaleUpMode
Java	class EnumDLRScaleUpMode

Members

Member (except ObjC/Swift)	Member (ObjC/Swift)	Value	Description	Valid Argument(s)
DLR_SUM_SKIP	EnumDLRScaleUpModeSkip	0x00	Skip the scale-up process.	N/A
DLR_SUM_AUTO	EnumDLRScaleUpModeAuto	0x01	The library chooses an interpolation method automatically to scale up.	N/A
DLR_SUM_LINEAR_INTERPOLATION	EnumDLRScaleUpModeLinearInterpolation	0x02	Scales up using the linear interpolation method.	LetterHeightThreshold TargetLetterHeight
DLR_SUM_NEAREST_NEIGHBOUR_INTERPOLATION	EnumDLRScaleUpModeNearestNeighbourInterpolation	0x04	Scales up using the nearest-neighbour interpolation method.	LetterHeightThreshold TargetLetterHeight