mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 00:05:52 +01:00
85 lines
2.6 KiB
ObjectPascal
85 lines
2.6 KiB
ObjectPascal
// *****************************************************************
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// Delphi-OpenCV Demo
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// Copyright (C) 2013 Project Delphi-OpenCV
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// ****************************************************************
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// Contributor:
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// Laentir Valetov
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// email:laex@bk.ru
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// ****************************************************************
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// You may retrieve the latest version of this file at the GitHub,
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// located at git://github.com/Laex/Delphi-OpenCV.git
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// ****************************************************************
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// The contents of this file are used with permission, subject to
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// the Mozilla Public License Version 1.1 (the "License"); you may
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// not use this file except in compliance with the License. You may
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// obtain a copy of the License at
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// http://www.mozilla.org/MPL/MPL-1_1Final.html
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//
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// Software distributed under the License is distributed on an
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// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// rights and limitations under the License.
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// *******************************************************************
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program cv_GoodFeaturesToTrack;
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{$APPTYPE CONSOLE}
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{$R *.res}
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uses
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System.SysUtils,
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ocv.highgui_c,
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ocv.core_c,
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ocv.core.types_c,
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ocv.imgproc_c,
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ocv.imgproc.types_c,
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uResourcePaths;
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Const
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ImgFilename = cResourceMedia + 'pic5.bmp';
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type
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TPointsArr = array [0 .. 250] of TCvPoint2D32f;
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PPointsArr = ^TPointsArr;
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var
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img1, img2, eig, temp: PIplImage;
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points: array [0 .. 1] of PPointsArr;
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pointsRow1: TPointsArr;
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ipar1, count, j: integer;
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begin
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try
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ipar1 := 100;
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img1 := cvLoadImage(ImgFilename, CV_LOAD_IMAGE_UNCHANGED);
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img2 := cvCreateImage(cvGetSize(img1), IPL_DEPTH_8U, 1);
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cvCvtColor(img1, img2, CV_RGB2GRAY);
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eig := cvCreateImage(cvGetSize(img2), 32, 1);
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temp := cvCreateImage(cvGetSize(img2), 32, 1);
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points[0] := @pointsRow1[0];
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count := 250;
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cvGoodFeaturesToTrack(img2, eig, temp, @points[0][0], @ipar1, 0.05, 10, nil, 5, 0, 0.09);
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cvFindCornerSubPix(img2, @points[0][0], count, cvSize(5, 5), cvSize(-1, -1),
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cvTermCriteria(CV_TERMCRIT_ITER or CV_TERMCRIT_EPS, 20, 0.03));
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for j := 0 to ipar1 - 1 do
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begin
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cvCircle(img1, cvPointFrom32f(points[0][j]), 3, CV_RGB(0, 255, 255), -1, 8, 0);
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cvCircle(img1, cvPointFrom32f(points[0][j]), 8, CV_RGB(255, 0, 0), -1, 8, 0);
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end;
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cvNamedWindow('bb', 1);
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cvShowImage('bb', img1);
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cvWaitKey(0);
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cvReleaseImage(img1);
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cvReleaseImage(img2);
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cvReleaseImage(eig);
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cvReleaseImage(temp);
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cvDestroyAllWindows;
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except
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on E: Exception do
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WriteLn(E.ClassName, ': ', E.Message);
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end;
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end.
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