C# OpenCvSharp 通道分离

效果

项目

 代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using OpenCvSharp;
using OpenCvSharp.Extensions;namespace OpenCvSharp_通道分离
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";Bitmap bmp;String imgPath = "";Mat mat;private void button2_Click(object sender, EventArgs e){OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = fileFilter;if (ofd.ShowDialog() != DialogResult.OK) return;imgPath = ofd.FileName;bmp = new Bitmap(imgPath);mat = new Mat(imgPath, ImreadModes.AnyColor);pictureBox1.Image = bmp;}private void button1_Click(object sender, EventArgs e){if (pictureBox1.Image == null){return;}//BGRMat[] mats = Cv2.Split(mat);if (radioButton1.Checked){//灰度图pictureBox2.Image = BitmapConverter.ToBitmap(mats[0]);pictureBox3.Image = BitmapConverter.ToBitmap(mats[1]);pictureBox4.Image = BitmapConverter.ToBitmap(mats[2]);//Window b = new Window("B", WindowMode.Normal);//Window g = new Window("G", WindowMode.Normal);//Window r = new Window("R", WindowMode.Normal);//b.ShowImage(mats[0]);//g.ShowImage(mats[1]);//r.ShowImage(mats[2]);}else{//彩色图//创建一个空通道0Mat zero = new Mat(mats[0].Size(), MatType.CV_8UC1, new Scalar(0));Mat bsum = new Mat();Mat gsum = new Mat();Mat rsum = new Mat();Cv2.Merge(new Mat[] { mats[0], zero, zero }, bsum);//(b,0,0)图像Cv2.Merge(new Mat[] { zero, mats[1], zero }, gsum);//(0,g,0)图像Cv2.Merge(new Mat[] { zero, zero, mats[2] }, rsum);//(0,0,r)图像pictureBox2.Image = BitmapConverter.ToBitmap(bsum);pictureBox3.Image = BitmapConverter.ToBitmap(gsum);pictureBox4.Image = BitmapConverter.ToBitmap(rsum);}}private void Form1_Load(object sender, EventArgs e){radioButton1.Checked = true;}}
}

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