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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.

DLRBinarizationMode

Describes the binarization mode.

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

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`

Describes the grayscale transformation mode.

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

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.

Describes the region predetection mode.

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

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`

Describes the scale up mode.

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

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`