Failed to recognize Barcode

Question

Failed to recognize Barcode

Korzer420 opened this issue a year ago · 3 comments

Hey,

I've encountered a problem where a clear barcode couldn't be recognized by the BarcodeReader.
I tried with all kinds of different options on the reader but without any success.

Below are the two versions of the image that I tried to use:

In both images the code is in the middle (in case git formats the images a bit weird)

This is the code I'm using

BarcodeReader<Bitmap> barcodeReader = new BarcodeReader<Bitmap>(null,
            bitmap => new BitmapLuminanceSource(bitmap),
                        luminance => new GlobalHistogramBinarizer(luminance))
            {
                Options =
                {
                    CharacterSet = "ISO-8859-1",
                    TryHarder = true,
                    ReturnCodabarStartEnd = true
                }
            };
            Result[] result;
            using (Bitmap image = new Bitmap("C:\\Test\\Barcode\\Test3_Identifier2.png"))
                result = barcodeReader.DecodeMultiple(image);

Small note that the type of barcode is unknown by the time the image is provided, so I can't really pass any possible formats on the options, in case that would help.

Thank you^^

Answer 1 · 2023-09-23T17:48:15.000Z

The images you provided are exactly the same, the only thing that differs is the quiet space. What tool/library generated them?

Answer 2 · 2023-09-23T18:29:43.000Z

The first ten modules correspond to Interleaved 2 of 5 codeword "29":

{ "29", new Interleaved2Of5CodeWord() { Pattern = "bsBSbsbSBs" } },

You can manually check the rest for yourself if you like with the table below.

It looks like a really broken and invalid barcode. My guess it is an Interleaved 2 of 5 missing start and stop patterns.

        codewordPatterns = new Dictionary<string, Interleaved2Of5CodeWord>
        {
            { "00", new Interleaved2Of5CodeWord() { Pattern = "bsbsBSBSbs" } },
            { "01", new Interleaved2Of5CodeWord() { Pattern = "bSbsBsBsbS" } },
            { "02", new Interleaved2Of5CodeWord() { Pattern = "bsbSBsBsbS" } },
            { "03", new Interleaved2Of5CodeWord() { Pattern = "bSbSBsBsbs" } },
            { "04", new Interleaved2Of5CodeWord() { Pattern = "bsbsBSBsbS" } },
            { "05", new Interleaved2Of5CodeWord() { Pattern = "bSbsBSBsbs" } },
            { "06", new Interleaved2Of5CodeWord() { Pattern = "bsbSBSBsbs" } },
            { "07", new Interleaved2Of5CodeWord() { Pattern = "bsbsBsBSbS" } },
            { "08", new Interleaved2Of5CodeWord() { Pattern = "bSbsBsBSbs" } },
            { "09", new Interleaved2Of5CodeWord() { Pattern = "bsbSBsBSbs" } },
            { "10", new Interleaved2Of5CodeWord() { Pattern = "BsbsbSbSBs" } },
            { "11", new Interleaved2Of5CodeWord() { Pattern = "BSbsbsbsBS" } },
            { "12", new Interleaved2Of5CodeWord() { Pattern = "BsbSbsbsBS" } },
            { "13", new Interleaved2Of5CodeWord() { Pattern = "BSbSbsbsBs" } },
            { "14", new Interleaved2Of5CodeWord() { Pattern = "BsbsbSbsBS" } },
            { "15", new Interleaved2Of5CodeWord() { Pattern = "BSbsbSbsBs" } },
            { "16", new Interleaved2Of5CodeWord() { Pattern = "BsbSbSbsBs" } },
            { "17", new Interleaved2Of5CodeWord() { Pattern = "BsbsbsbSBS" } },
            { "18", new Interleaved2Of5CodeWord() { Pattern = "BSbsbsbSBs" } },
            { "19", new Interleaved2Of5CodeWord() { Pattern = "BsbSbsbSBs" } },
            { "20", new Interleaved2Of5CodeWord() { Pattern = "bsBsbSbSBs" } },
            { "21", new Interleaved2Of5CodeWord() { Pattern = "bSBsbsbsBS" } },
            { "22", new Interleaved2Of5CodeWord() { Pattern = "bsBSbsbsBS" } },
            { "23", new Interleaved2Of5CodeWord() { Pattern = "bSBSbsbsBs" } },
            { "24", new Interleaved2Of5CodeWord() { Pattern = "bsBsbSbsBS" } },
            { "25", new Interleaved2Of5CodeWord() { Pattern = "bSBsbSbsBs" } },
            { "26", new Interleaved2Of5CodeWord() { Pattern = "bsBSbSbsBs" } },
            { "27", new Interleaved2Of5CodeWord() { Pattern = "bsBsbsbSBS" } },
            { "28", new Interleaved2Of5CodeWord() { Pattern = "bSBsbsbSBs" } },
            { "29", new Interleaved2Of5CodeWord() { Pattern = "bsBSbsbSBs" } },
            { "30", new Interleaved2Of5CodeWord() { Pattern = "BsBsbSbSbs" } },
            { "31", new Interleaved2Of5CodeWord() { Pattern = "BSBsbsbsbS" } },
            { "32", new Interleaved2Of5CodeWord() { Pattern = "BsBSbsbsbS" } },
            { "33", new Interleaved2Of5CodeWord() { Pattern = "BSBSbsbsbs" } },
            { "34", new Interleaved2Of5CodeWord() { Pattern = "BsBsbSbsbS" } },
            { "35", new Interleaved2Of5CodeWord() { Pattern = "BSBsbSbsbs" } },
            { "36", new Interleaved2Of5CodeWord() { Pattern = "BsBSbSbsbs" } },
            { "37", new Interleaved2Of5CodeWord() { Pattern = "BsBsbsbSbS" } },
            { "38", new Interleaved2Of5CodeWord() { Pattern = "BSBsbsbSbs" } },
            { "39", new Interleaved2Of5CodeWord() { Pattern = "BsBSbsbSbs" } },
            { "40", new Interleaved2Of5CodeWord() { Pattern = "bsbsBSbSBs" } },
            { "41", new Interleaved2Of5CodeWord() { Pattern = "bSbsBsbsBS" } },
            { "42", new Interleaved2Of5CodeWord() { Pattern = "bsbSBsbsBS" } },
            { "43", new Interleaved2Of5CodeWord() { Pattern = "bSbSBsbsBs" } },
            { "44", new Interleaved2Of5CodeWord() { Pattern = "bsbsBSbsBS" } },
            { "45", new Interleaved2Of5CodeWord() { Pattern = "bSbsBSbsBs" } },
            { "46", new Interleaved2Of5CodeWord() { Pattern = "bsbSBSbsBs" } },
            { "47", new Interleaved2Of5CodeWord() { Pattern = "bsbsBsbSBS" } },
            { "48", new Interleaved2Of5CodeWord() { Pattern = "bSbsBsbSBs" } },
            { "49", new Interleaved2Of5CodeWord() { Pattern = "bsbSBsbSBs" } },
            { "50", new Interleaved2Of5CodeWord() { Pattern = "BsbsBSbSbs" } },
            { "51", new Interleaved2Of5CodeWord() { Pattern = "BSbsBsbsbS" } },
            { "52", new Interleaved2Of5CodeWord() { Pattern = "BsbSBsbsbS" } },
            { "53", new Interleaved2Of5CodeWord() { Pattern = "BSbSBsbsbs" } },
            { "54", new Interleaved2Of5CodeWord() { Pattern = "BsbsBSbsbS" } },
            { "55", new Interleaved2Of5CodeWord() { Pattern = "BSbsBSbsbs" } },
            { "56", new Interleaved2Of5CodeWord() { Pattern = "BsbSBSbsbs" } },
            { "57", new Interleaved2Of5CodeWord() { Pattern = "BsbsBsbSbS" } },
            { "58", new Interleaved2Of5CodeWord() { Pattern = "BSbsBsbSbs" } },
            { "59", new Interleaved2Of5CodeWord() { Pattern = "BsbSBsbSbs" } },
            { "60", new Interleaved2Of5CodeWord() { Pattern = "bsBsBSbSbs" } },
            { "61", new Interleaved2Of5CodeWord() { Pattern = "bSBsBsbsbS" } },
            { "62", new Interleaved2Of5CodeWord() { Pattern = "bsBSBsbsbS" } },
            { "63", new Interleaved2Of5CodeWord() { Pattern = "bSBSBsbsbs" } },
            { "64", new Interleaved2Of5CodeWord() { Pattern = "bsBsBSbsbS" } },
            { "65", new Interleaved2Of5CodeWord() { Pattern = "bSBsBSbsbs" } },
            { "66", new Interleaved2Of5CodeWord() { Pattern = "bsBSBSbsbs" } },
            { "67", new Interleaved2Of5CodeWord() { Pattern = "bsBsBsbSbS" } },
            { "68", new Interleaved2Of5CodeWord() { Pattern = "bSBsBsbSbs" } },
            { "69", new Interleaved2Of5CodeWord() { Pattern = "bsBSBsbSbs" } },
            { "70", new Interleaved2Of5CodeWord() { Pattern = "bsbsbSBSBs" } },
            { "71", new Interleaved2Of5CodeWord() { Pattern = "bSbsbsBsBS" } },
            { "72", new Interleaved2Of5CodeWord() { Pattern = "bsbSbsBsBS" } },
            { "73", new Interleaved2Of5CodeWord() { Pattern = "bSbSbsBsBs" } },
            { "74", new Interleaved2Of5CodeWord() { Pattern = "bsbsbSBsBS" } },
            { "75", new Interleaved2Of5CodeWord() { Pattern = "bSbsbSBsBs" } },
            { "76", new Interleaved2Of5CodeWord() { Pattern = "bsbSbSBsBs" } },
            { "77", new Interleaved2Of5CodeWord() { Pattern = "bsbsbsBSBS" } },
            { "78", new Interleaved2Of5CodeWord() { Pattern = "bSbsbsBSBs" } },
            { "79", new Interleaved2Of5CodeWord() { Pattern = "bsbSbsBSBs" } },
            { "80", new Interleaved2Of5CodeWord() { Pattern = "BsbsbSBSbs" } },
            { "81", new Interleaved2Of5CodeWord() { Pattern = "BSbsbsBsbS" } },
            { "82", new Interleaved2Of5CodeWord() { Pattern = "BsbSbsBsbS" } },
            { "83", new Interleaved2Of5CodeWord() { Pattern = "BSbSbsBsbs" } },
            { "84", new Interleaved2Of5CodeWord() { Pattern = "BsbsbSBsbS" } },
            { "85", new Interleaved2Of5CodeWord() { Pattern = "BSbsbSBsbs" } },
            { "86", new Interleaved2Of5CodeWord() { Pattern = "BsbSbSBsbs" } },
            { "87", new Interleaved2Of5CodeWord() { Pattern = "BsbsbsBSbS" } },
            { "88", new Interleaved2Of5CodeWord() { Pattern = "BSbsbsBSbs" } },
            { "89", new Interleaved2Of5CodeWord() { Pattern = "BsbSbsBSbs" } },
            { "90", new Interleaved2Of5CodeWord() { Pattern = "bsBsbSBSbs" } },
            { "91", new Interleaved2Of5CodeWord() { Pattern = "bSBsbsBsbS" } },
            { "92", new Interleaved2Of5CodeWord() { Pattern = "bsBSbsBsbS" } },
            { "93", new Interleaved2Of5CodeWord() { Pattern = "bSBSbsBsbs" } },
            { "94", new Interleaved2Of5CodeWord() { Pattern = "bsBsbSBsbS" } },
            { "95", new Interleaved2Of5CodeWord() { Pattern = "bSBsbSBsbs" } },
            { "96", new Interleaved2Of5CodeWord() { Pattern = "bsBSbSBsbs" } },
            { "97", new Interleaved2Of5CodeWord() { Pattern = "bsBsbsBSbS" } },
            { "98", new Interleaved2Of5CodeWord() { Pattern = "bSBsbsBSbs" } },
            { "99", new Interleaved2Of5CodeWord() { Pattern = "bsBSbsBSbs" } },
        };

Answer 3 · 2023-10-04T12:54:45.000Z

Hey, sorry for the late response.

The code was generated via labeljoy and the snippet of only the barcode was created with gimp. Below is the full pdf file. In both cases the barcode could not be read.
labeljoy-code-Code11-1687868946318 (1).pdf