Thanks for downloading Dynamsoft Label Recognizer Package!

Your download will start shortly. If your download does not begin, click here to retry.

LabelRecognitionParameter Object

Parameter Name	Description
`LabelRecognitionParameter.Name`	The name of the LabelRecognitionParameter object.
`LabelRecognitionParameter.BinarizationModes`	Sets the mode and priority for binarization.
`LabelRecognitionParameter.CharacterModelName`	Sets the name of a white list of recognizable characters.
`LabelRecognitionParameter.GrayscaleTransformationModes`	Sets the mode and priority for the grayscale image conversion.
`LabelRecognitionParameter.LetterHeightRange`	Sets the range of letter height (in pixel or a percentage value relative to the height of the text area).
`LabelRecognitionParameter.LinesCount`	Sets the text lines count of the text area.
`LabelRecognitionParameter.LineStringRegExPattern`	Specifies the regular expression pattern of each line string text in current image to recognize.
`LabelRecognitionParameter.MaxThreadCount`	Sets the maximum number of threads the algorithm will use to recognize text.
`LabelRecognitionParameter.ReferenceRegionNameArray`	The name array of the ReferenceRegion object(s).
`LabelRecognitionParameter.RegionPredetectionModes`	Sets the region pre-detection mode for searching target regions.
`LabelRecognitionParameter.TextRegExPattern`	Specifies the regular expression pattern of the text to recognize.

GrayscaleTransformationModes

Mode Properties

GrayscaleTransformationModes is a parameter for setting the mode for the grayscale image conversion. It consisits of one or more DLRGrayscaleTransformationMode items. The array index represents the priority of the item. The smaller index is, the higher priority is.

Value Type	Value Range	Default Value
`DLRGrayscaleTransformationMode` array	“DLR_GTM_SKIP” “DLR_GTM_INVERTED” “DLR_GTM_ORIGINAL”	[“DLR_GTM_ORIGINAL”, “DLR_GTM_SKIP”, “DLR_GTM_SKIP”, “DLR_GTM_SKIP”, “DLR_GTM_SKIP”, “DLR_GTM_SKIP”, “DLR_GTM_SKIP”, “DLR_GTM_SKIP”]

See also:
DLRGrayscaleTransformationMode Enumeration

LibraryFileName

Sets the file name of the library to load dynamically.

Value Type	Value Range	Default Value	Valid Modes
string	A string value representing file name.	””	All `DLRGrayscaleTransformationMode` items except DLR_GTM_SKIP

Remarks

The library must be in the same place with Dynamsoft Label Recognition Library.

LibraryParameters

Sets the parameters passed to the library to load dynamically.

Value Type	Value Range	Default Value	Valid Modes
string	A string value representing parameters.	””	All `DLRGrayscaleTransformationMode` items except DLR_GTM_SKIP

Setting Methods

As JSON Parameter

GrayscaleTransformationModes as a JSON parameter is a JSON Object array. ach JSON Object has a key Mode for setting the mode, and the array index decides the priority of the mode for the grayscale image conversion. Default values will be used if there is no manual setting.

Json Object	Json Parameter Name	Value Type
LabelRecognitionParameter	GrayscaleTransformationModes	JSON Object Array

Json Parameter Example

{
    "GrayscaleTransformationModes": [
        {
            "Mode": "DLR_GTM_INVERTED"
        },
        {
            "Mode": "DLR_GTM_ORIGINAL"
        }
    ]
}

As `DLRRuntimeSettings` Member

GrayscaleTransformationModes is a DLRGrayscaleTransformationMode array defines in furtherModes which is a struct member of DLRRuntimeSettings. It is used for setting the modes and the priority for the grayscale image conversion. Default value will be used if there is no manual setting.

Struct	Struct Member Name	Value Type
`DLRRuntimeSettings`	`grayscaleTransformationModes`	`DLRGrayscaleTransformationMode`[8]

See Also