Barcode index. Must be between 1 and BarcodePDF417ReaderGetBarcodeCount returned value.
Example





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GdPicture14 Namespace / GdPictureImaging Class / BarcodePDF417ReaderGetBarcodeConfidence Method

BarcodePDF417ReaderGetBarcodeConfidence Method (GdPictureImaging)

In This Topic
Returns the confidence of a barcode detected by the BarcodePDF417ReaderDoScan method.
Syntax
'Declaration

 


Public Function BarcodePDF417ReaderGetBarcodeConfidence( _

   ByVal BarcodeNo As Integer _

) As Single
public float BarcodePDF417ReaderGetBarcodeConfidence( 

   int BarcodeNo

)
public function BarcodePDF417ReaderGetBarcodeConfidence( 

    BarcodeNo: Integer

): Single; 
public function BarcodePDF417ReaderGetBarcodeConfidence( 

   BarcodeNo : int

) : float;
public: float BarcodePDF417ReaderGetBarcodeConfidence( 

   int BarcodeNo

) 
public:

float BarcodePDF417ReaderGetBarcodeConfidence( 

   int BarcodeNo

)

Parameters

BarcodeNo
Barcode index. Must be between 1 and BarcodePDF417ReaderGetBarcodeCount returned value.

Return Value

The barcode confidence. In the range [(less trust) 0 - 100 (full trust)]
Remarks

This method is used in the "Barcode Recognition" Demo.

Example
Finding PDF417 barcodes in an image and writing complete barcodes info into a file. 
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())

{

    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.jpg", false);

 

    // Set to 0, so all the PDF417 barcodes in the image should be found.

    int expectedBarcodes = 0;

 

    // Perform scanning at best speed, ignoring very damaged barcodes.

    BarcodePDF417ReaderScanMode mode = BarcodePDF417ReaderScanMode.BestSpeed;

 

    // Start the PDF417 barcode scanning process and write info into a text file.

    gdpictureImaging.BarcodePDF417ReaderDoScan(imageID, mode, expectedBarcodes);

 

    using (System.IO.StreamWriter file = new System.IO.StreamWriter("PDF417.txt"))

    {

        int barcodesFound = gdpictureImaging.BarcodePDF417ReaderGetBarcodeCount();

 

        for (int i = 1; i <= barcodesFound; i++)

        {

            // Decoded information.

            file.WriteLine("Decoded info = " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeValue(i));

 

            // The raw bytes decoded. It was post-processed to find the correct decoded info based on detected Encoding.

            file.WriteLine("Raw bytes = " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeValueRAW(i));

 

            // The number of rows of the barcode.

            file.WriteLine("Rows = " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeRows(i));

 

            // The number of columns of the barcode.

            file.WriteLine("Columns = " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeColumns(i));

 

            // The skew angle of the barcode, in degrees.

            file.WriteLine("Skew angle = " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeSkewAngle(i));

 

            // Confidence in result, in percentage (values from 0 to 100).

            file.WriteLine("Confidence = " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeConfidence(i));

 

            // The barcode position, given by the coordinates of the corners.

            file.WriteLine("Position =  Top-Left=["

                + gdpictureImaging.BarcodePDF417ReaderGetBarcodeX1(i) + ", " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeY1(i)

                + "] Top-Right=[" + gdpictureImaging.BarcodePDF417ReaderGetBarcodeX2(i) + ", " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeY2(i)

                + "] Bottom-Right=[" + gdpictureImaging.BarcodePDF417ReaderGetBarcodeX3(i) + ", " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeY3(i)

                + "] Bottom-Left=[" + gdpictureImaging.BarcodePDF417ReaderGetBarcodeX4(i) + ", " + gdpictureImaging.BarcodePDF417ReaderGetBarcodeY4(i) + "]");

        }

    }

 

    // Release used resources.

    gdpictureImaging.BarcodePDF417ReaderClear();

    gdpictureImaging.ReleaseGdPictureImage(imageID);

}
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members