C# OpenCvSharp 去水印 图像修复

效果

项目

VS2022+.net4.8+OpenCvSharp4

代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Windows.Forms;
using OpenCvSharp;
using OpenCvSharp.Extensions;namespace OpenCvSharp_去水印_图像修复
{public partial class Form1 : Form{public Form1(){InitializeComponent();}Bitmap bmp;string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";string imgPath = "";public Mat img, img0, inpainted, inpaintMask;int thickness = 10;string CommandText;InpaintMethod inpaintMethod;ListItem li;private void Form1_Load(object sender, EventArgs e){this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);this.UpdateStyles();//添加项：cBoxThresholdTypes.Items.Add(new ListItem("NS", InpaintMethod.NS));cBoxThresholdTypes.Items.Add(new ListItem("Telea", InpaintMethod.Telea));//设置选中项：cBoxThresholdTypes.SelectedIndex = 0;    //根据索引}private void trackBar2_Scroll(object sender, EventArgs e){thickness = trackBar2.Value;}private void button1_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);pictureBox1.Image = bmp;img0 = Cv2.ImRead(imgPath);inpaintMask = new Mat(img0.Size(), MatType.CV_8U, Scalar.Black);pictureBox2.Image = BitmapConverter.ToBitmap(inpaintMask);pictureBox3.Image = null;}private void cBoxThresholdTypes_SelectedIndexChanged(object sender, EventArgs e){Inpaint();}private void trackBar1_Scroll(object sender, EventArgs e){Inpaint();}private void button4_Click(object sender, EventArgs e){if (pictureBox1.Image == null){return;}img = img0.Clone();inpaintMask = new Mat(img0.Size(), MatType.CV_8U, Scalar.Black);inpainted = img0.EmptyClone();Window wImage = new Window("image", img);OpenCvSharp.Point prevPt = new OpenCvSharp.Point(-1, -1);wImage.SetMouseCallback((MouseEventTypes ev, int x, int y, MouseEventFlags flags, IntPtr userdata) =>{if (ev == MouseEventTypes.LButtonUp || (flags & MouseEventFlags.LButton) == 0){prevPt = new OpenCvSharp.Point(-1, -1);}else if (ev == MouseEventTypes.LButtonDown){prevPt = new OpenCvSharp.Point(x, y);}else if (ev == MouseEventTypes.MouseMove && (flags & MouseEventFlags.LButton) != 0){OpenCvSharp.Point pt = new OpenCvSharp.Point(x, y);if (prevPt.X < 0){prevPt = pt;}inpaintMask.Line(prevPt, pt, Scalar.White, thickness, LineTypes.AntiAlias, 0);pictureBox2.Image = BitmapConverter.ToBitmap(inpaintMask);img.Line(prevPt, pt, Scalar.White, thickness, LineTypes.AntiAlias, 0);prevPt = pt;wImage.ShowImage(img);}});try{for (; ; ){switch ((char)Window.WaitKey(0)){case (char)27:    // exitreturn;case 'r':inpaintMask.SetTo(Scalar.Black);pictureBox2.Image = BitmapConverter.ToBitmap(inpaintMask);img0.CopyTo(img);wImage.ShowImage(img);break;case 'i':case '\r':Inpaint();break;}}}finally{Window.DestroyAllWindows();}}private void button3_Click(object sender, EventArgs e){Inpaint();}void Inpaint(){if (pictureBox1.Image == null){return;}li = (ListItem)cBoxThresholdTypes.SelectedItem;inpaintMethod = (InpaintMethod)li.Value;Cv2.Inpaint(img, inpaintMask, inpainted, trackBar1.Value, inpaintMethod);pictureBox3.Image = BitmapConverter.ToBitmap(inpainted);CommandText = String.Format("Cv2.Inpaint(src, mask, dst,{0},{1})", trackBar1.Value, inpaintMethod.ToString());txtCommandText.Text = CommandText;}}
}

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