read-incomplete-barcodes.md

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default-layout	Read Incomplete Barcodes - Dynamsoft Barcode Reader SDK	This page describes how to read incomplete barcodes in Dynamsoft Barcode Reader SDK.	Incomplete Barcodes	false

Read Incomplete Barcodes

In some cases, barcodes may have incomplete sections due to typographical errors as shown below.

Incomplete Barcodes

In this case, you can enable the barcode completion logic in Dynamsoft Barcode Reader (DBR) using [BarcodeComplementModes]({{ site.dcv_parameters_reference }}barcode-reader-task-settings/barcode-complement-modes.html). After that, DBR will attempt to complete and correct the barcode according to the structural characteristics of the corresponding barcode type.

NOTE:

The barcode completion logic only supports QR code and Data Matrix at present.

Sample Code

Below is an example illustrating how to configure the parameter BarcodeComplementModes.

• update parameter BarcodeComplementModes in your JSON template

  {
      "CaptureVisionTemplates": [
          {
              "Name": "CV_0",
              "ImageROIProcessingNameArray": ["TA_0" ]
          }       
      ],
      "TargetROIDefOptions" : [
          {
              "Name": "TA_0",
              "TaskSettingNameArray": [ "BR_0" ]
          }
      ],
      "BarcodeReaderTaskSettingOptions": [
          {
              "Name" : "BR_0",
              "BarcodeComplementModes": [
                  {
                      "Mode": "BCM_GENERAL"
                  }
              ]
          }
      ]
  }

• apply settings by calling method InitSettingsFromFile

>- JavaScript >- C++ >- Android >- Objective-C >- Swift > > ```javascript // `router` is an instance of `CaptureVisionRouter`. // In the JS edition, the method name we use for initialization is different. router.initSettings("PATH-TO-YOUR-SETTING") ``` > ```c++ char szErrorMsg[256] = {0}; CCaptureVisionRouter* cvr = new CCaptureVisionRouter; cvr->InitSettingsFromFile("PATH-TO-YOUR-SETTING-FILE", szErrorMsg, 256); // more process here ``` > ```java try { // `cvr` is an instance of `CaptureVisionRouter`. cvr.initSettingsFromFile("PATH-TO-YOUR-SETTING-FILE"); } catch (CaptureVisionRouterException e) { e.printStackTrace(); } ``` > ```objc NSError *error; // `cvr` is an instance of `DSCaptureVisionRouter`. [self.cvr initSettingsFromFile:@"PATH-TO-YOUR-SETTING-FILE" error:&error]; ``` > ```swift do{ //`cvr` is an instance of `CaptureVisionRouter`. try cvr.initSettingsFromFile("PATH-TO-YOUR-SETTING-FILE") }catch{ // Add code to do when error occurs. } ```