zbar配置

比对了下QZXing库，还是zbar强大点。这两个都可以识别0、90、180、270、360角度的条形码。zbar可以识别多个条形码。而且获取条码类型。

1、下载安装zbar，选择full全部安装。也可以从这里下载。

 2、由于官方给的是32位的，继续下载64位的zbar

替换文件：

• 将ZBarWin64-master\lib 文件夹下 libzbar64-0.lib 文件复制到ZBar安装路径下的 lib 文件夹；
• 将 ZBarWin64-master\lib 文件夹下 libzbar64-0.dll 文件复制到ZBar安装路径下的 bin 文件夹；
• 将ZBarWin64-master\zbar\libiconv\dll_x64文件夹下 libiconv.dll 复制到ZBar安装路径下的bin 文件夹；

3、将bin目录添加到环境变量

【实战】

VS创建控制台应用

#include <opencv.hpp>
#include <zbar.h>

#include <iostream>

using namespace cv;
using namespace zbar;
using namespace std;

int main()
{
    //定义扫描器
    ImageScanner scanner;
    scanner.set_config(ZBAR_NONE, ZBAR_CFG_ENABLE, 1);

    //加载图片
    Mat image = imread("D:/qrcode.jpg");
    if (!image.data)
    {
        cout << "图片为空，请确认！" << endl;
        system("pause");
        return 0;
    }

    //图片转换，Mat转Image
    Mat imageGray;
    cvtColor(image, imageGray, COLOR_RGB2GRAY);
    int width = imageGray.cols;
    int height = imageGray.rows;
    uchar* raw = (uchar*)imageGray.data;
    Image imageZbar(width, height, "Y800", raw, width * height);
    
    //扫码
    scanner.scan(imageZbar);
    Image::SymbolIterator symbol = imageZbar.symbol_begin();
    if (imageZbar.symbol_begin()==imageZbar.symbol_end())
    {
        cout << "扫码失败！" << endl;
    }
    for (;symbol!=imageZbar.symbol_end();++symbol)
    {
        cout << "类型：" << endl << symbol->get_type_name() << endl;
        cout << "条码：" << endl << symbol->get_data() << endl;
    }

    //显示
    imshow("Source Image", image);
    waitKey();
    imageZbar.set_data(NULL, 0);//清除缓存
    return 0;


    std::cout << "Hello World!\n";
}

 我的属性表.props如下：

标黄部分修改为自己的版本，VS中添加属性表即可。

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ImportGroup Label="PropertySheets" />
  <PropertyGroup Label="UserMacros" />
  <PropertyGroup />
  <ItemDefinitionGroup>
    <ClCompile>
      <AdditionalIncludeDirectories>C:\opencv\debug\build\include;C:\opencv\debug\build\include\opencv2;C:\Program Files %28x86%29\ZBar\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
    </ClCompile>
    <Link>
      <AdditionalLibraryDirectories>C:\opencv\debug\build\lib;C:\Program Files %28x86%29\ZBar\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
      <AdditionalDependencies>opencv_calib3d455d.lib;opencv_core455d.lib;opencv_dnn455d.lib;opencv_features2d455d.lib;opencv_flann455d.lib;opencv_gapi455d.lib;opencv_highgui455d.lib;opencv_imgcodecs455d.lib;opencv_imgproc455d.lib;opencv_ml455d.lib;opencv_objdetect455d.lib;opencv_photo455d.lib;opencv_stitching455d.lib;opencv_video455d.lib;opencv_videoio455d.lib;libzbar64-0.lib;%(AdditionalDependencies)</AdditionalDependencies>
    </Link>
  </ItemDefinitionGroup>
  <ItemGroup />
</Project>

 图中有2个条码，识别结果可能带有非数字的特殊符号，需要筛选下。

 

 

#include <opencv.hpp>
#include <zbar.h>

#include <iostream>

using namespace cv;
using namespace zbar;
using namespace std;

//只保留字符串中的数字
int ExtractNum(string ss, char* ch)
{
    const char* c = ss.c_str();
    int amount = 0;
    int i = 0;
    while (c[i] != '\0')
    {
        if (c[i] >= '0' && c[i] <= '9')
        {
            ch[amount] = c[i];
            amount++;
        }
        i++;
    }
    return amount;
}

int main()
{
    //定义扫描器
    ImageScanner scanner;
    scanner.set_config(ZBAR_NONE, ZBAR_CFG_ENABLE, 1);

    //加载图片
    Mat image = imread("./barcode/条形码.jpg");
    if (!image.data)
    {
        cout << "图片为空，请确认！" << endl;
        system("pause");
        return 0;
    }

    //图片转换，Mat转Image
    Mat imageGray;
    cvtColor(image, imageGray, COLOR_RGB2GRAY);
    int width = imageGray.cols;
    int height = imageGray.rows;
    uchar* raw = (uchar*)imageGray.data;
    Image imageZbar(width, height, "Y800", raw, width * height);

    //扫码
    scanner.scan(imageZbar);
    Image::SymbolIterator symbol = imageZbar.symbol_begin();
    if (imageZbar.symbol_begin() == imageZbar.symbol_end())
    {
        cout << "扫码失败！" << endl;
    }        

    for (; symbol != imageZbar.symbol_end(); ++symbol)
    {
        char ch[100];
        cout << "类型：" << endl << symbol->get_type_name() << endl;
        cout << "条码：" << endl << symbol->get_data() << endl;
        int amount = ExtractNum(symbol->get_data(), ch);
        cout << "条码：" << endl << ch << endl;
    }

    //显示
    imshow("Source Image", image);
    waitKey();
    imageZbar.set_data(NULL, 0);//清除缓存
    return 0;


    std::cout << "Hello World!\n";
}