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LabelRecognizerParameter Object

CharacterNormalizationModes

Mode Properties

CharacterNormalizationModes is a parameter for setting the mode for character normalization. It consisits of one or more CharacterNormalizationMode items and each item has its own arguments. The array index represents the priority of the item. The smaller index is, the higher priority is.

Value Type	Value Range	Default Value
`CharacterNormalizationMode` array	“CNM_SKIP” “CNM_AUTO” “CNM_MORPH”	[“CNM_AUTO”]

MorphOperation

Sets the morph operation for the morphology process.

Value Type	Value Range	Default Value
string	“Erode” “Dilate” “Open” “Close”	“Close”

Remarks

“Erode”: Perform erosion process.
“Dilate”: Perform dilation process.
“Open”: Perform erosion first, then perform dilation.
“Close”: Perform dilation first, then perform erosion.

For more information, please check out Image Processing in OpenCV - Morphological Transformations for reference.

MorphArgument

Sets the morph argument for the morphology process.

Value Type	Value Range	Default Value
string	A string value representing morph argument. Now it only indicates Morph kernel size.	“3”

Setting Methods

As JSON Parameter

CharacterNormalizationModes as a JSON parameter is a JSON Object array. Each JSON Object has several keys for setting the mode and the value of arguments. The array index decides the priority the mode for character normalization. Default values will be used if there is no manual setting.

Json Object	Json Parameter Name	Value Type
LabelRecognizerParameter	CharacterNormalizationModes	JSON Object Array

Json Parameter Example

{
    "CharacterNormalizationModes": [
        {
            "Mode": "CNM_MORPH",
            "MorphOperation": "Close",
            "MorphArgument": "3",
        }
    ]
}