eyemDecode.cs
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using Microsoft.Win32.SafeHandles;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace CodeLibrary
{
public unsafe class EyemDecode
{
public static bool IsInit = false;
/// <summary>
/// 识别图像二维码
/// </summary>
/// <param name="bmap">需要手动释放这个bitmap</param>
/// <param name="file">如果传文件的话，bmp传null</param>
/// <returns></returns>
public static List<CodeInfo> ModelDecoder(ref Bitmap bmap, string file = null)
{
if (!IsInit)
{
//string detectorConfigPath = Application.StartupPath + @"\\model\\" + "detect-tiny.cfg";
//string detectorModelPath = Application.StartupPath + @"\\model\\" + "detect-tiny.weights";
//string superResolutionConfigPath = Application.StartupPath + @"\\model\\" + "sr.caffemodel";
//string superResolutionModelPath = Application.StartupPath + @"\\model\\" + "sr.prototxt";
string detectorConfigPath = ".\\model\\" + "detect-tiny.cfg";
string detectorModelPath = ".\\model\\" + "detect-tiny.weights";
string superResolutionConfigPath = ".\\model\\" + "sr.caffemodel";
string superResolutionModelPath = ".\\model\\" + "sr.prototxt";
if (File.Exists(detectorConfigPath)&& File.Exists(detectorModelPath) )
{
int result = eyemInitNNDataCodeModel(detectorConfigPath, detectorModelPath, "", "");
HDLogUtil.info("eyemInitNNDataCodeModel: " + result);
IsInit = true;
Console.WriteLine("eyemInitNNDataCodeModel: " + result);
}
else
{
HDLogUtil.error("eyemInitNNDataCodeModel 模型文件不完整");
}
}
List<CodeInfo> codelist = new List<CodeInfo>();
try
{
//创建图像引用
EyemImage eyemImage;
BitmapData bitmapData = null;
if (file == null)
{
Rectangle rect = new Rectangle(0, 0, bmap.Width, bmap.Height);
bitmapData = bmap.LockBits(rect, ImageLockMode.ReadOnly, bmap.PixelFormat);
eyemImage = new EyemImage();
eyemImage.vpImage = bitmapData.Scan0;
eyemImage.iWidth = rect.Width;
eyemImage.iHeight = rect.Height;
if (bmap.PixelFormat.Equals(PixelFormat.Format8bppIndexed))
{
eyemImage.iChannels = 1;
}else
{
eyemImage.iChannels = 3;
}
eyemImage.iDepth = 0;
if (bitmapData != null)
bmap.UnlockBits(bitmapData);
}
else
{
eyemImageRead(file, 3, out eyemImage);
}
EyemImage outImage ;
//创建扫描区域
EyemRect eyemRect = new EyemRect();
eyemRect.iXs = 0;
eyemRect.iYs = 0;
eyemRect.iWidth = eyemImage.iWidth;
eyemRect.iHeight = eyemImage.iHeight;
string codeType = "QR_CODE|DATA_MATRIX"; //QRCode
int ipNum;
EyemBarCode* tpResults;
DataCodeHandle hObject = null;
try
{
int result = eyemDetectAndDecodeUseNN(eyemImage, eyemRect, out hObject, out tpResults, out ipNum,out outImage);
HDLogUtil.info($"eyemDetectAndDecode:{result},ipNum:{ipNum}");
if (result != 0 || ipNum == 0)
return codelist;
for (int i = 0; i < ipNum; i++)
{
CodeInfo ci = new CodeInfo(Marshal.PtrToStringAnsi(tpResults[i].hText), tpResults[i].iCenterX, tpResults[i].iCenterY);
ci.CodeType = Marshal.PtrToStringAnsi(tpResults[i].hType);
codelist.Add(ci);
}
}
finally
{
if (hObject != null)
{
hObject.Dispose();
}
if (bitmapData != null)
{
try
{
bmap.UnlockBits(bitmapData);
}catch(Exception ex)
{
}
}
if (file != null)
{
eyemImageFree(ref eyemImage);
}
//bmap.Dispose();
}
}
catch (Exception ex)
{
HDLogUtil.error(ex.ToString());
}
//eyemImageFree(eyemImage.ucpImage);
return codelist;
}
/// <summary>
/// 识别图像二维码
/// </summary>
/// <param name="bmap">需要手动释放这个bitmap</param>
/// <param name="file">如果传文件的话，bmp传null</param>
/// <returns></returns>
public static List<CodeInfo> Decoder(ref Bitmap bmap, string file = null)
{
List<CodeInfo> codelist = new List<CodeInfo>();
try
{
//创建图像引用
EyemImage eyemImage;
BitmapData bitmapData = null;
if (file == null)
{
Rectangle rect = new Rectangle(0, 0, bmap.Width, bmap.Height);
bitmapData = bmap.LockBits(rect, ImageLockMode.ReadOnly, bmap.PixelFormat);
eyemImage = new EyemImage();
eyemImage.vpImage = bitmapData.Scan0;
eyemImage.iWidth = rect.Width;
eyemImage.iHeight = rect.Height;
if (bmap.PixelFormat.Equals(PixelFormat.Format8bppIndexed))
{
eyemImage.iChannels = 1;
}
else
{
eyemImage.iChannels = 3;
}
eyemImage.iDepth = 0;
}
else
{
eyemImageRead(file, 3, out eyemImage);
}
//创建扫描区域
EyemRect eyemRect = new EyemRect();
eyemRect.iXs = 0;
eyemRect.iYs = 0;
eyemRect.iWidth = eyemImage.iWidth;
eyemRect.iHeight = eyemImage.iHeight;
string codeType = "QR_CODE|DATA_MATRIX"; //QRCode
int ipNum;
EyemBarCode* tpResults;
DataCodeHandle hObject = null;
try
{
int result = eyemDetectAndDecode(eyemImage, eyemRect, "", codeType, out hObject, out tpResults, out ipNum, false, 19, 5, 128, 215);
HDLogUtil.info($"eyemDetectAndDecode:{result},ipNum:{ipNum}");
if (result != 0 || ipNum == 0)
return codelist;
for (int i = 0; i < ipNum; i++)
{
CodeInfo ci = new CodeInfo(Marshal.PtrToStringAnsi(tpResults[i].hText), tpResults[i].iCenterX, tpResults[i].iCenterY);
ci.CodeType = Marshal.PtrToStringAnsi(tpResults[i].hType);
codelist.Add(ci);
}
}
finally
{
if (hObject != null)
hObject.Dispose();
if (bitmapData != null)
bmap.UnlockBits(bitmapData);
if (file != null)
eyemImageFree(ref eyemImage);
//bmap.Dispose();
}
}
catch (Exception ex)
{
HDLogUtil.error(ex.ToString());
}
//eyemImageFree(eyemImage.ucpImage);
return codelist;
}
//释放解码句柄
private class DataCodeHandle : SafeHandleZeroOrMinusOneIsInvalid
{
public DataCodeHandle() : base(true) { }
protected override bool ReleaseHandle()
{
return eyemDetectAndDecodeFree(handle);
}
}
//基于深度学习读码程序（仅支持QR、DataMatrix）
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemDetectAndDecodeUseNN(EyemImage tpImage, EyemRect tpRoi, out DataCodeHandle hObject, out EyemBarCode* tpResults, out int ipNum, out EyemImage tpDstImg);
//加载模型配置文件
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemInitNNDataCodeModel(string detectorConfigPath, string detectorModelPath, string superResolutionConfigPath, string superResolutionModelPath);
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemDetectAndDecode(EyemImage tpImage, EyemRect tpRoi, string fileName, string strCodeType, out DataCodeHandle hObject, out EyemBarCode* tpResults, out int ipNum, bool bUseNiBlack, int iBlockSize, int iRangeC, int iSymbolMin, int iSymbolMax, double dScaleUpAndDown = 0.5, double dToleErr = 0.5, double dMinorStep = 1.0);
/*
* 参数说明
tpImage 输入图像，可使用”eyemImageRead“接口读取图片（需与“eyemImageFree”配合使用），也可直接创建EyemImage对象。
tpRoi 感兴趣区域，尺寸不能小于iSymbolMax。
fileName 文件名，可不填。
strCodeType 所要识别条码类型，“QRCode|DataMatrix|CODE_128”等等。
hObject 结果释放句柄，配合eyemDetectAndDecodeFree使用
tpResults 识别结果
ipNum 结果数量
bUseNiBlack 使用NiBlack二值化，默认值 false。
iBlockSize 定位块大小（奇数），略大于最大定位块（只二维码），佳世达一般设置为11。
iRangeC 搜索范围，范围越大识别越好时间也相应越长，佳世达一般设置为5。
iSymbolMin 最小二维码尺寸，默认128。
iSymbolMax 最大二维码尺寸，佳世达一般设置为215。
dScaleUpAndDown 缩放，<1表示缩小，>1表示放大，=1表示不缩放
dToleErr 最大允许误差默认50%，越小越严格但可能会识别不到。
dMinorStep 步进，默认1.0。
//返回值
-3 图像不存在
-1 内存不足
0 正常
-100 未识别到条码或参数设置不正确
*/
/// <summary>
/// 读取图像
/// </summary>
/// <param name="filename"></param>
/// <param name="iFalgs"></param>
/// <param name="ucpImage"></param>
/// <returns></returns>
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemImageRead(string filename, int iFalgs, out EyemImage ucpImage);
///// <summary>
///// 释放图像资源
///// </summary>
///// <param name="ipImage"></param>
//[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
//private static extern void eyemImageFree(IntPtr ipImage);
//释放图像资源
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern void eyemImageFree(ref EyemImage tpImage);
//释放工具
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern bool eyemDetectAndDecodeFree(IntPtr hObject);
[StructLayout(LayoutKind.Sequential)]
public struct EyemImage
{
public IntPtr vpImage; // 地址
public int iWidth; // 图像内存 x 方向大小
public int iHeight; // 图像内存 y 方向大小
public int iDepth; // 图像位深度（详见说明）
public int iChannels; // 图像通道数
}
[StructLayout(LayoutKind.Sequential)]
public struct EyemRect
{
public int iXs; // 起始点（左上角） x 坐标
public int iYs; // 起始点（左上角） y 坐标
public int iWidth; // x 方向大小（宽度）
public int iHeight; // y 方向大小（高度）
}
[StructLayout(LayoutKind.Sequential)]
public struct EyemBarCode
{
public double dAngle; // 角度
public int iCenterX; // y坐标
public int iCenterY; // y坐标
public IntPtr hType; // 码类型
public IntPtr hText; // 码内容
}
}
}