AForge.NET QuadrilateralTransformation (C#)

最新推荐文章于 2024-04-22 23:13:19 发布

Iam_Rocky

最新推荐文章于 2024-04-22 23:13:19 发布

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分类专栏： [AForge.NET] 文章标签： c# null button filter object class

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本文介绍了如何使用AForge.NET库中的QuadrilateralTransformation类来实现C#中图像的四边形转换。通过定义四个角点坐标，可以将任意四边形变形为矩形。实例代码展示了从文件读取图片、处理并显示原始及转换后的图片。

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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 System.Drawing.Imaging;
using AForge;
using AForge.Imaging;
using AForge.Imaging.Filters;
namespace AForge_QuadrilateralTransformation_CSharp
{
public partial class Form1 : Form
{
      public Form1()
      {
         InitializeComponent();
      }
      private void button1_Click(object sender, EventArgs e)
      {
         Bitmap sourceImage, filteredImage;
         Bitmap temp;
         List<IntPoint> corners = new List<IntPoint>();
         QuadrilateralTransformation filter = new QuadrilateralTransformation(corners, 200, 200);
         corners.Add(new IntPoint(99, 99));
         corners.Add(new IntPoint(156, 79));
         corners.Add(new IntPoint(184, 126));
         corners.Add(new IntPoint(122, 150));
         sourceImage = (Bitmap)System.Drawing.Image.FromFile(Application.StartupPath + @"..\..\..\sample18.jpg");
         if (pictureBox1.Image != null)
         {
            pictureBox1.Image.Dispose();
            pictureBox1.Image = null;
         }
         if (pictureBox2.Image != null)
         {
            pictureBox2.Image.Dispose();
            pictureBox2.Image = null;
         }
         temp = AForge.Imaging.Image.Clone(sourceImage, sourceImage.PixelFormat);
         sourceImage.Dispose();
         sourceImage = temp;
         pictureBox1.Image = sourceImage;
         filteredImage = filter.Apply(sourceImage);
         pictureBox2.Image = filteredImage;
      }
}
}