Asa_Halcon.cs
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using HalconDotNet;
namespace Asa
{
public class Halcon
{
/// <summary>
/// 错误信息
/// </summary>
public string ErrInfo { set; get; }
/// <summary>
/// 解读条形码
/// </summary>
/// <param name="bmp"></param>
/// <param name="codeInfo"></param>
/// <returns></returns>
public bool DecodeBarCode(Bitmap bmp, out List<BarCodeInfo> codeInfo)
{
HObject hObj = null;
codeInfo = new List<BarCodeInfo>();
//图像转成halcon的类型
try
{
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppRgb);
HOperatorSet.GenImageInterleaved(out hObj, bmpData.Scan0, "bgrx", bmp.Width, bmp.Height, 0, "byte", 0, 0, 0, 0, -1, 0);
bmp.UnlockBits(bmpData);
}
catch (Exception ex)
{
hObj = null;
ErrInfo = ex.Message;
return false;
}
try
{
HOperatorSet.Rgb1ToGray(hObj, out HObject grayImage);
HOperatorSet.CreateBarCodeModel(new HTuple(), new HTuple(), out HTuple hv_BarCode); //创建条码模型
HOperatorSet.SetBarCodeParam(hv_BarCode, "num_scanlines", 5); //扫描线的最大数量
HOperatorSet.SetBarCodeParam(hv_BarCode, "min_identical_scanlines", 3); //成功解码最少扫描线数量
HOperatorSet.SetBarCodeParam(hv_BarCode, "start_stop_tolerance", "high"); //扫描线的起点和终点的容许误差
HOperatorSet.SetBarCodeParam(hv_BarCode, "max_diff_orient", 5); //条码相邻两条竖条边缘扭曲的最大角度容差
HOperatorSet.FindBarCode(grayImage, out HObject symbolRegions, hv_BarCode, "auto", out HTuple hv_String); //寻找条码
HOperatorSet.GetBarCodeResult(hv_BarCode, "all", "decoded_types", out HTuple hv_Type); //获取条码类型
HOperatorSet.GetBarCodeResult(hv_BarCode, "all", "orientation", out HTuple hv_Orientation); //获取条码方向，x轴逆时针[0,180]，顺时针[0,-180]
HOperatorSet.AreaCenter(symbolRegions, out HTuple hv_Area, out HTuple hv_Row, out HTuple hv_Column); //获取面积中心点
HOperatorSet.RegionFeatures(symbolRegions, "width", out HTuple hv_width); //条形码宽度
HOperatorSet.RegionFeatures(symbolRegions, "height", out HTuple hv_height); //条形码高度
HOperatorSet.ClearBarCodeModel(hv_BarCode); //清除条码模型
//支持‘Data Matrix ECC 200’、‘QR Code’和‘PDF417’共3种类型
//‘standard_recognition’、‘enhanced_recognition’、‘maximum_recognition’
//HOperatorSet.CreateDataCode2dModel("QR Code", "default_parameters", "maximum_recognition", out HTuple dataCodeHandle);
//HOperatorSet.SetDataCode2dParam(dataCodeHandle, "timeout", 200); //一个二维码的解码时间
//HOperatorSet.SetDataCode2dParam(dataCodeHandle, "symbol_size_min", 16); //码粒最小个数
//HOperatorSet.SetDataCode2dParam(dataCodeHandle, "symbol_size_max", 30); //码粒最大个数
//HOperatorSet.SetDataCode2dParam(dataCodeHandle, "module_size_min", 10); //码粒最小像素
//HOperatorSet.SetDataCode2dParam(dataCodeHandle, "module_size_max", 30); //码粒最大像素
//HOperatorSet.FindDataCode2d(grayImage, out HObject symbolXLDs, dataCodeHandle, new HTuple(), new HTuple(), out HTuple resultHandles, out HTuple decodedDataStrings);
//HOperatorSet.ClearDataCode2dModel(dataCodeHandle);
int n = hv_String.SArr.Length;
for (int i = 0; i < n; i++)
{
BarCodeInfo info = new BarCodeInfo();
info.centerX = Convert.ToSingle(hv_Column.DArr[i]);
info.centerY = Convert.ToSingle(hv_Row.DArr[i]);
info.text = hv_String.SArr[i];
info.angle = Convert.ToSingle(hv_Orientation.DArr[i]);
codeInfo.Add(info);
}
return true;
}
catch (Exception ex)
{
ErrInfo = ex.Message;
return false;
}
}
}
/// <summary>
/// 一维条码信息
/// </summary>
public struct BarCodeInfo
{
/// <summary>
/// 文本
/// </summary>
public string text;
/// <summary>
/// 中心点x
/// </summary>
public float centerX;
/// <summary>
/// 中心点y
/// </summary>
public float centerY;
/// <summary>
/// 角度，3点钟方向0°，逆时针为正，顺时针为负。
/// </summary>
public float angle;
/// <summary>
/// 条码矩形的4个顶点
/// </summary>
public PointF[] peak;
public BarCodeInfo(string s)
{
string[] ss = s.Split(',');
centerX = Convert.ToSingle(ss[0]);
centerY = Convert.ToSingle(ss[1]);
angle = Convert.ToSingle(ss[2]);
text = ss[3];
peak = new PointF[4];
}
public BarCodeInfo(string text, float centerX, float centerY, float angle)
{
this.text = text;
this.centerX = centerX;
this.centerY = centerY;
this.angle = angle;
peak = new PointF[4];
}
public string GetString()
{
return centerX + "," + centerY + "," + angle + "," + text;
}
public void SetString(string s)
{
string[] ss = s.Split(',');
centerX = Convert.ToSingle(ss[0]);
centerY = Convert.ToSingle(ss[1]);
angle = Convert.ToSingle(ss[2]);
text = ss[3];
}
}
}