Samuele E. Locatelli
71 lines
2.1 KiB
C#
71 lines
2.1 KiB
C#
using OpenCvSharp;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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namespace ThermoCamUtils
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{
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public class PerspectiveTransform
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{
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Point2f[] srcPoints = new Point2f[] {
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new Point2f(0, 0),
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new Point2f(0, 0),
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new Point2f(0, 0),
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new Point2f(0, 0),
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};
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Point2f[] dstPoints = new Point2f[] {
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new Point2f(600, 0),
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new Point2f(0, 0),
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new Point2f(0, 400),
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new Point2f(600, 400),
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};
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protected Mat OriginalImage;
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public PerspectiveTransform(List<System.Drawing.Point> _srcPoints, List<System.Drawing.Point> _dstPoints)
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{
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srcPoints = convertPoints(_srcPoints);
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dstPoints = convertPoints(_dstPoints);
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}
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protected Point2f[] convertPoints(List<System.Drawing.Point> origList)
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{
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Point2f[] answ = new Point2f[origList.Count];
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for (int i = 0; i < origList.Count; i++)
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{
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answ[i] = new Point2f(origList[i].X, origList[i].Y);
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}
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return answ;
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}
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public Bitmap convertImage(Bitmap OrigImage, int dimX, int dimY)
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{
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Bitmap answ = OrigImage;
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OriginalImage = OpenCvSharp.Extensions.BitmapConverter.ToMat(OrigImage);
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// verifica siano 4 sorgente e 4 dest...
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if (srcPoints.Length == 4 && dstPoints.Length == 4)
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{
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using var matrix = Cv2.GetPerspectiveTransform(srcPoints, dstPoints);
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using var dst = new Mat(new OpenCvSharp.Size(dimX, dimY), MatType.CV_8UC3);
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Cv2.WarpPerspective(OriginalImage, dst, matrix, dst.Size());
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answ = MatToBitmap(dst);
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}
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return answ;
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}
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// This is the function that converts IplImage image
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// into Bitmap
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public static Bitmap MatToBitmap(Mat image)
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{
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return OpenCvSharp.Extensions.BitmapConverter.ToBitmap(image);
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}
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}
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}
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