mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 00:05:52 +01:00
97 lines
2.7 KiB
ObjectPascal
97 lines
2.7 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_HoughCircles;
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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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opencv.highgui_c,
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opencv.core_c,
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opencv.core.types_c,
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opencv.imgproc_c,
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opencv.imgproc.types_c,
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uResourcePaths;
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const
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filename = cResourceMedia + 'opencv_logo_with_text_sm.png';
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type
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TFloatArray = array [0 .. 10] of Single;
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pFloatArray = ^TFloatArray;
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var
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image: pIplImage = nil;
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src: pIplImage = nil;
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storage: pCvMemStorage;
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results: pCvSeq;
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i: Integer;
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p: pFloatArray;
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pt: TCvPoint;
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begin
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try
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// ïîëó÷àåì êàðòèíêó (â ãðàäàöèÿõ cåðîãî)
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image := cvLoadImage(filename, CV_LOAD_IMAGE_GRAYSCALE);
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WriteLn(Format('[i] image: %s', [filename]));
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// çàãðóçèì îðèãèíàëüíîå èçîáðàæåíèè
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src := cvLoadImage(filename);
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// õðàíèëèùå ïàìÿòè äëÿ êðóãîâ
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storage := cvCreateMemStorage(0);
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// cãëàæèâàåì èçîáðàæåíèå
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cvSmooth(image, image, CV_GAUSSIAN, 5, 5);
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// ïîècê êðóãîâ
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results := cvHoughCircles(image, storage, CV_HOUGH_GRADIENT, 10, image^.width / 5);
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// ïðîáåãàåìcÿ ïî êðóãàì è ðècóåì èõ íà îðèãèíàëüíîì èçîáðàæåíèè
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for i := 0 to results^.total - 1 do
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begin
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p := pFloatArray(cvGetSeqElem(results, i));
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pt := CvPoint(cvRound(p^[0]), cvRound(p^[1]));
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cvCircle(src, pt, cvRound(p^[2]), CV_RGB(255, 0, 0));
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end;
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// ïîêàçûâàåì
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cvNamedWindow('cvHoughCircles', 1);
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cvShowImage('cvHoughCircles', src);
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// æä¸ì íàæàòèÿ êëàâèøè
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cvWaitKey(0);
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// îcâîáîæäàåì ðåcóðcû
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cvReleaseMemStorage(storage);
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cvReleaseImage(image);
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cvReleaseImage(src);
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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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