效果
效果1
效果2
项目
代码
using OpenCvSharp;
using System;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace OpenCvSharp_Demo
{
public partial class frmMain : Form
{
public frmMain()
{
InitializeComponent();
}
string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
string image_path = "";
DateTime dt1 = DateTime.Now;
DateTime dt2 = DateTime.Now;
Mat image;
Mat result_image;
StringBuilder sb = new StringBuilder();
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = fileFilter;
if (ofd.ShowDialog() != DialogResult.OK) return;
pictureBox1.Image = null;
pictureBox2.Image = null;
image_path = ofd.FileName;
pictureBox1.Image = new Bitmap(image_path);
image = new Mat(image_path);
}
private void button2_Click(object sender, EventArgs e)
{
image_path = "test_img/2.jpg";
image = new Mat(image_path);
pictureBox1.Image = new Bitmap(image_path);
result_image = new Mat();
float h, w, cx, cy;
h = (float)image.Height;
w = (float)image.Width;
//以图像中心点作为变换中心
cx = w / 2;
cy = h / 2;
double maxR = Math.Max(cx, cy); // 最大变换半径
Cv2.LinearPolar(image, result_image, new Point2f(cx, cy), maxR, InterpolationFlags.Linear);
Cv2.Rotate(result_image, result_image, RotateFlags.Rotate90Counterclockwise);
pictureBox2.Image = new Bitmap(result_image.ToMemoryStream());
}
private void button3_Click(object sender, EventArgs e)
{
image_path = "test_img/1.jpg";
image = new Mat(image_path);
pictureBox1.Image = new Bitmap(image_path);
result_image = new Mat();
float h, w, cx, cy;
h = (float)image.Height;
w = (float)image.Width;
//以图像中心点作为变换中心
cx = w / 2;
cy = h / 2;
Cv2.LogPolar(image, result_image, new Point2f(cx, cy), 80, InterpolationFlags.Linear | InterpolationFlags.WarpFillOutliers);
Cv2.Rotate(result_image, result_image, RotateFlags.Rotate90Counterclockwise);
pictureBox2.Image = new Bitmap(result_image.ToMemoryStream());
}
private void pictureBox2_DoubleClick(object sender, EventArgs e)
{
//Common.ShowNormalImg(pictureBox2.Image);
}
private void pictureBox1_DoubleClick(object sender, EventArgs e)
{
//Common.ShowNormalImg(pictureBox1.Image);
}
}
}
