Barcode Reader Gaming Project in C++

Projects Inventory

3 months ago

#include <iostream>
#include <opencv2/opencv.hpp>
#include <zxing/BarcodeFormat.h>
#include <zxing/DecodeHints.h>
#include <zxing/Reader.h>
#include <zxing/MultiFormatReader.h>
#include <zxing/BinaryBitmap.h>
#include <zxing/HybridBinarizer.h>
#include <zxing/BitMatrix.h>
#include <zxing/Result.h>

using namespace std;
using namespace cv;
using namespace zxing;

int main() {
    // Load the image containing the barcode
    string imagePath = "barcode.png";
    Mat image = imread(imagePath, IMREAD_GRAYSCALE);
    if (image.empty()) {
        cerr << "Error loading image." << endl;
        return 1;
    }

    // Convert Mat image to zxing::BitMatrix
    int width = image.cols;
    int height = image.rows;
    vector<uchar> imgData(image.data, image.data + (width * height));
    Ref<BitMatrix> bitMatrix = Ref<BitMatrix>(new BitMatrix(width, height));
    for (int y = 0; y < height; ++y) {
        for (int x = 0; x < width; ++x) {
            uchar pixel = imgData[y * width + x];
            bitMatrix->set(x, y, pixel < 128);
        }
    }

    // Create a BinaryBitmap from BitMatrix
    Ref<BinaryBitmap> binaryBitmap = Ref<BinaryBitmap>(new BinaryBitmap(Ref<HybridBinarizer>(new HybridBinarizer(bitMatrix))));

    // Create a reader and decode the barcode
    MultiFormatReader reader;
    DecodeHints hints;
    hints.setTryHarder(true);
    Ref<Result> result = reader.decode(binaryBitmap, hints);

    // Output the result
    if (result) {
        cout << "Barcode text: " << result->getText()->getText() << endl;
    } else {
        cout << "No barcode found." << endl;
    }

    return 0;
}

#include <iostream>

#include <opencv2/opencv.hpp>

#include <zxing/BarcodeFormat.h>

#include <zxing/DecodeHints.h>

#include <zxing/Reader.h>

#include <zxing/MultiFormatReader.h>

#include <zxing/BinaryBitmap.h>

#include <zxing/HybridBinarizer.h>

#include <zxing/BitMatrix.h>

#include <zxing/Result.h>

using namespace std;

using namespace cv;

using namespace zxing;

int main() {

// Load the image containing the barcode

string imagePath = "barcode.png";

Mat image = imread(imagePath, IMREAD_GRAYSCALE);

if (image.empty()) {

cerr << "Error loading image." << endl;

return 1;

}

// Convert Mat image to zxing::BitMatrix

int width = image.cols;

int height = image.rows;

vector<uchar> imgData(image.data, image.data + (width * height));

Ref<BitMatrix> bitMatrix = Ref<BitMatrix>(new BitMatrix(width, height));

for (int y = 0; y < height; ++y) {

for (int x = 0; x < width; ++x) {

uchar pixel = imgData[y * width + x];

bitMatrix->set(x, y, pixel < 128);

}

// Create a BinaryBitmap from BitMatrix

Ref<BinaryBitmap> binaryBitmap = Ref<BinaryBitmap>(new BinaryBitmap(Ref<HybridBinarizer>(new HybridBinarizer(bitMatrix))));

// Create a reader and decode the barcode

MultiFormatReader reader;

DecodeHints hints;

hints.setTryHarder(true);

Ref<Result> result = reader.decode(binaryBitmap, hints);

// Output the result

if (result) {

cout << "Barcode text: " << result->getText()->getText() << endl;

} else {

cout << "No barcode found." << endl;

}

return 0;

}

Explanation

Include Libraries:
- #include <iostream>: For input and output operations.
- #include <opencv2/opencv.hpp>: For image processing using OpenCV.
- ZXing headers for barcode processing.
Load the Image:
- Mat image = imread(imagePath, IMREAD_GRAYSCALE);: Load the image in grayscale mode using OpenCV.
Convert OpenCV Image to ZXing BitMatrix

Advertisement

:
- Extract pixel data from the cv::Mat object and convert it into a ZXing BitMatrix.
- Pixels are converted into a binary format where pixel < 128 is treated as black, and others as white.
Create BinaryBitmap:
- BinaryBitmap is constructed using a HybridBinarizer which processes the BitMatrix.
Decode the Barcode:
- Create a MultiFormatReader to decode the barcode from the BinaryBitmap.
- Set decoding hints to improve recognition.
Output the Result:
- If the barcode is successfully decoded, output the text; otherwise, indicate that no barcode was found.

Notes:

ZXing Setup: Ensure ZXing and OpenCV libraries are correctly linked and included in your project.
Image Path: Replace "barcode.png" with the path to your barcode image.
Library Dependencies: Ensure ZXing and OpenCV libraries are installed and configured in your build system.

Explanation

Notes:

Related Posts: