SimplifiedDocumentNormalizerSettings

The SimplifiedDocumentNormalizerSettings class represents a series of simple settings related to the document scanning.

Definition

Assembly: dynamsoft_capture_vision_flutter

class SimplifiedDocumentNormalizerSettings

Properties

Property	Types	Description
`grayscaleTransformationModes`	List<EnumGrayscaleTransformationMode>	An array of GrayscaleTransformationMode. It controls whether to detect the inverted document boundary.
`grayscaleEnhancementModes`	List<EnumGrayscaleEnhancementMode>	An array of GrayscaleEnhancementModes.
`colourMode`	EnumImageColourMode	The grayscale transformation mode. It controls whether to decode the inverted text.
`pageSize`	Size	The page size.
`brightness`	int	The brightness.
`contrast`	int	The contrast.
`maxThreadsInOneTask`	int	The maximum number of threads in one task.
`scaleDownThreshold`	int	The scale down threshold.
`minQuadrilateralAreaRatio`	int	The minimum ratio between the target document area and the total image area. Only those exceeding this value will be output (measured in percentages).
`expectedDocumentsCount`	int	The number of documents expected to be detected.

grayscaleTransformationModes

Defines the grayscale transformation modes with an array of EnumGrayscaleTransformationMode items. This parameter is important when working with inverted documents, and must be used in order to locate the inverted document boundary.

List<EnumGrayscaleTransformationMode> grayscaleTransformationModes;

grayscaleEnhancementModes

Defines the grayscale enhancement modes with an array of EnumGrayscaleEnhancementModes items. This parameter can be quite powerful in increasing the border detection rate of your application should you experience any trouble in that area. To learn more about the grayscaleEnhancementModes and how they can be used, please visit the main GrayscaleEnhancementModes parameter page.

List<EnumGrayscaleEnhancementMode> grayscaleEnhancementModes;

colourMode

Defines the colour mode of the normalized image with an EnumImageColourMode member. By default, the normalized image will output in colour. In order to make the result image grayscale or binary, setting the colourMode to the corresponding pixel type will do the trick.

EnumImageColourMode colourMode;

pageSize

The page size of the normalized image.

Size pageSize;

brightness

The brightness of the normalized image result.

@IntRange
int brightness;

Range

[-100, 100]

contrast

The contrast of the normalized image result.

int contrast;

Range

[-100,100]

maxThreadsInOneTask

The maximum number of threads dedicated to a single task.

int maxThreadsInOneTask;

scaleDownThreshold

If the original image size is quite large, then the scaledownThreshold can be used to shrink the image and speed up the processing. If the shorter edge size is larger than the defined scale down threshold, the library will calculate the required width and height of the image and shrink it to that size before moving forward in the process.

int scaleDownThreshold;

minQuadrilateralAreaRatio

The minimum ratio between the target document area and the total image area. Only those exceeding this value will be output (measured in percentages).

int minQuadrilateralAreaRatio;

Range

[0, 100]

If expectedDocumentsCount is 1 && documentType is Document, the range is from 20 to 100.

expectedDocumentsCount

The number of documents expected to be detected.

int expectedDocumentsCount;