CaptureVisionRouter Multiple Image Processing

setInput

Sets up an image source to provide images for continuous processing.

Syntax

setInput(imageSource: ImageSourceAdapter): void;

Parameters

imageSource: The image source which is compliant with the ImageSourceAdapter interface.

Return Value

None.

Code snippet

router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
let view = await Dynamsoft.DCE.CameraView.createInstance();
cameraEnhancer = await Dynamsoft.DCE.CameraEnhancer.createInstance(view);
router.setInput(cameraEnhancer);

See Also

ImageSourceAdapter

getInput

Returns the image source object.

Syntax

getInput(): ImageSourceAdapter;

Parameters

None.

Return Value

Returns the current image source.

Code snippet

const imageSource = CaptureVisionRouter.getInput();

addResultReceiver

Adds a CapturedResultReceiver object as the receiver of captured results.

Syntax

addResultReceiver(receiver: CapturedResultReceiver): void;

Parameters

receiver: The receiver object, of type CapturedResultReceiver.

Return Value

None.

Code snippet

router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
const resultReceiver = new Dynamsoft.CVR.CapturedResultReceiver();
resultReceiver.onCapturedResultReceived = (result) => {
    /* Do something with the result */
};
router.addResultReceiver(resultReceiver);

removeResultReceiver

Removes the specified CapturedResultReceiver object.

Syntax

removeResultReceiver(receiver: CapturedResultReceiver): void;

Parameters

receiver: The receiver object, of type CapturedResultReceiver.

Return Value

None.

Code snippet

router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
const resultReceiver = new Dynamsoft.CVR.CapturedResultReceiver();
resultReceiver.onCapturedResultReceived = (result) => {
    /* Do something with the result */
};
router.addResultReceiver(resultReceiver);
//...
router.removeResultReceiver(resultReceiver);

addResultFilter

Adds a MultiFrameResultCrossFilter object to filter non-essential results.

Syntax

addResultFilter(filter: MultiFrameResultCrossFilter): Promise<void>;

Parameters

filter: The filter object, of type MultiFrameResultCrossFilter.

Return Value

A promise that resolves when the operation has successfully completed. It does not provide any value upon resolution.

Code snippet

filter = new Dynamsoft.Utility.MultiFrameResultCrossFilter();
router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
router.addResultFilter(filter);

In the provided code snippet, the default filter implementation is utilized. This filter can offer cross-validation and de-duplication functionalities. To utilize this filter, it’s necessary to include the corresponding package dynamsoft-utility.

See also

MultiFrameResultCrossFilter

removeResultFilter

Removes the specified MultiFrameResultCrossFilter object.

Syntax

removeResultFilter(filter: MultiFrameResultCrossFilter): : Promise<void>;

Parameters

filter: The filter object, of type MultiFrameResultCrossFilter.

Return Value

A promise that resolves when the operation has successfully completed. It does not provide any value upon resolution.

Code snippet

filter = new Dynamsoft.Utility.MultiFrameResultCrossFilter();
router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
router.addResultFilter(filter);
// ...
router.removeResultFilter(filter);

startCapturing

Initiates a capturing process based on a specified template. This process is repeated for each image fetched from the source.

Syntax

startCapturing(templateName?: string): Promise<void>;

Parameters

templateName: specifies a “CaptureVisionTemplate” to use. If not specified, “Default” is used. There are two types of CaptureVisionTemplates: the preset ones which come with the SDK and the custom ones that get initialized when the user calls initSettings. Please be aware that the built-in CaptureVisionTemplates will be overwritten should the user calls initSettings and pass his own settings.

Return Value

A promise that resolves when the capturing process has successfully started. It does not provide any value upon resolution.

Code snippet

router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
await router.startCapturing("ReadSingleBarcode");

stopCapturing

Stops the capturing process.

Syntax

stopCapturing(): void;

Parameters

None.

Return Value

None.

Code snippet

router = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
await router.startCapturing("ReadSingleBarcode");
// ...
router.stopCapturing();