基于OpenCV实现的图片识别功能源码

基于OpenCV实现的图片识别功能。 学习示例： 脸部+眼部检测 马路行人检测 特征匹配（示例：微信“跳一跳”棋子匹配）

using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.CV.Util;
using System.Diagnostics;
using System.Drawing;
using System.Linq;

namespace ImageRecognition.Demos
{
    public static class base
    {
        /// 

        /// 灰度
        /// 

        /// 
        /// 
        /// 
        public static Mat Gray（string imgpathout long runTime）
        {
            Stopwatch sp = new Stopwatch（）;
            sp.Start（）;
            Mat image = CvInvoke.Imread（imgpath ImreadModes.Grayscale）;
            runTime = sp.ElapsedMilliseconds;
            return image;
        }
        /// 

        /// 边缘
        /// 

        /// 
        /// 
        /// 
        public static Mat Canny（string imgpath out long runTime）
        {
            Mat image = CvInvoke.Imread（imgpath ImreadModes.Color）;
            Stopwatch sp = new Stopwatch（）;
            sp.Start（）;

            Mat result= new Mat（）;
            CvInvoke.Canny（image result10060）;
            runTime = sp.ElapsedMilliseconds;
            return result;
        }

        public static Mat FindContours（Mat image out long runTime）
        {
            Mat result = new Mat（image.SizeDepthType.Cv8S3） ;// new Bitmap（image.Size.Width image.Size.Height）;

            Stopwatch sp = new Stopwatch（）;
            sp.Start（）;
            using （VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint（））
            {
                CvInvoke.FindContours（image contours null RetrType.List ChainApproxMethod.ChainApproxNone）;
                int count = contours.Size;
                for （int i = 0; i < count; i++）
                {
                    using （VectorOfPoint contour = contours[i]）
                    using （VectorOfPoint approxContour = new VectorOfPoint（））
                    {
                        if （contour.ToArray（）.Max（x => x.Y） < 200）
                            continue;
                        MCvScalar color = new Bgr（Color.Green）.MCvScalar;
                        CvInvoke.ApproxPolyDP（contour approxContour CvInvoke.ArcLength（contour true） * 0.05 true）;
                        //if （CvInvoke.ContourArea（approxContour false） > 250） //only consider contours with area greater than 250
                        //{
                        if （approxContour.Size == 3） //The contour has 3 vertices it is a triangle
                        {
                            color = new Bgr（Color.Red）.MCvScalar;
                        }
                        else if （approxContour.Size == 4） //The contour has 4 vertices.
                        {
                            color = new Bgr（Color.Yellow）.MCvScalar;
                        }
                        else
                        {
                            color = new Bgr（Color.Orange）.MCvS

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    .......      2518  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\.gitattributes

    .......      5070  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\.gitignore

     文件        110  2018-06-20 15:26  hgflydream-ImageRecognition-master\ImageRecognition\asp.net免费源码下载.url

    .......      3470  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos\base.cs

    .......      6166  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos\DrawMatches.cs

    .......      6434  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos\FaceDetection.cs

    .......      2472  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos\ImageRecognition.Demos.csproj

    .......      3499  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos\PedestrianDetection.cs

    .......      1297  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos\Properties\AssemblyInfo.cs

    .......       182  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\App.config

    .......    341406  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\data\haarcascade_eye.xml

    .......    930127  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\data\haarcascade_frontalface_default.xml

    .......      4960  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Forms.cs

    .......      9352  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Forms.Designer.cs

    .......      5698  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Forms.resx

    .......      4635  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\ImageRecognition.Demos.WindowsForms.csproj

    .......       525  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Program.cs

    .......      1332  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Properties\AssemblyInfo.cs

    .......      2812  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Properties\Resources.Designer.cs

    .......      5496  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Properties\Resources.resx

    .......      1092  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Properties\Settings.Designer.cs

    .......       242  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\Properties\Settings.settings

    .......     15724  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\testimages\qizi_mode.png

    .......     50902  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.Demos.WindowsForms\testimages\tiaoyitiao.png

    .......      1904  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\ImageRecognition\ImageRecognition.sln

    .......    115200  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\libs\Emgu.CV.UI.dll

    .......     33928  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\libs\Emgu.CV.UI.xml

    .......    646144  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\libs\Emgu.CV.World.dll

    .......   1671567  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\libs\Emgu.CV.World.xml

    .......    307200  2018-01-10 09:23  hgflydream-ImageRecognition-master\ImageRecognition\libs\ZedGraph.dll

............此处省略19个文件信息