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OrientationDetectionModes

Parameter OrientationDetectionModes is an array of orientation detection mode objects used in the SST_LOCALIZE_TEXT_LINES stage. Each object specifies a method for determining the orientation of detected text lines. Once a mode successfully determines the orientation, subsequent modes in the array are not evaluated. By default, this parameter is null and no orientation detection is performed.

Remarks

Introduced in Dynamsoft Capture Vision version 3.6.1000.

JSON Structure

Location in template:

LabelRecognizerTaskSettingOptions[i]
    └── SectionArray[j] (Section object)
        └── StageArray[k] (Stage object where Stage = "SST_LOCALIZE_TEXT_LINES")
            └── OrientationDetectionModes

Parent object: LocalizeTextLinesStage

Example:

{
    "OrientationDetectionModes": [
        {
            "Mode": "ODM_SPATIAL_REFERENCES"
        },
        {
            "Mode": "ODM_CHARS_ORIENTATION_NEURAL_NETWORK",
            "ModelNameArray": ["TextLineOrientationCls"]
        }
    ]
}

This snippet shows only the OrientationDetectionModes parameter.

To use it, embed this parameter within a LocalizeTextLinesStage object.

For the complete JSON structure, see:

Full JSON Structure

Minimal Valid JSON

Parameter Details

Parameter OrientationDetectionModes consists of a group of orientation detection mode objects. Each orientation detection mode object includes a candidate mode and a series of mode arguments. The mode arguments of the orientation detection mode object are shown as follows:

Mode Arguments

Mode Argument Name	Mode Argument Summary
Mode (Required)	Description Any one in Candidate Mode List as string
	Type String
	Candidate Mode List ODM_SPATIAL_REFERENCES ODM_CHARS_ORIENTATION_NEURAL_NETWORK
	Default Value N/A
ModelNameArray (Optional)	Description An array of model names used for neural network-based orientation detection. The default model `TextLineOrientationCls` supports 0° and 180° orientation detection.
	Type array of string
	Default Value ["TextLineOrientationCls"]
	Valid For ODM_CHARS_ORIENTATION_NEURAL_NETWORK

Candidate Modes

ODM_SPATIAL_REFERENCES

Determines text line orientation by analyzing the spatial relationships between reference objects. No additional arguments are available for this mode.

ODM_CHARS_ORIENTATION_NEURAL_NETWORK

Determines text line orientation using a neural network model applied to individual text lines. Supports 0° and 180° orientation classification.

Available Mode Arguments:

ModelNameArray