mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-17 00:35:54 +01:00
102 lines
2.8 KiB
ObjectPascal
102 lines
2.8 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_HoughLines2;
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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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filename = cResourceMedia + 'opencv_logo_with_text_sm.png';
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var
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src: pIplImage = Nil;
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dst: pIplImage = Nil;
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color_dst: pIplImage = Nil;
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storage: pCvMemStorage;
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i: Integer;
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lines: pCvSeq;
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line: pCvPointArray;
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begin
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try
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// ïîëó÷àåì êàðòèíêó (â ãðàäàöèÿõ cåðîãî)
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src := cvLoadImage(filename, CV_LOAD_IMAGE_GRAYSCALE);
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WriteLn(Format('[i] image: %s', [filename]));
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// õðàíèëèùå ïàìÿòè äëÿ õðàíåíèÿ íàéäåííûõ ëèíèé
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storage := cvCreateMemStorage(0);
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lines := nil;
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i := 0;
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dst := cvCreateImage(cvGetSize(src), 8, 1);
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color_dst := cvCreateImage(cvGetSize(src), 8, 3);
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// äåòåêòèðîâàíèå ãðàíèö
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cvCanny(src, dst, 50, 200, 3);
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// êîíâåðòèðóåì â öâåòíîå èçîáðàæåíèå
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cvCvtColor(dst, color_dst, CV_GRAY2BGR);
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// íàõîæäåíèå ëèíèé
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lines := cvHoughLines2(dst, storage, CV_HOUGH_PROBABILISTIC, 1, CV_PI / 180, 50, 50, 10);
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// íàðècóåì íàéäåííûå ëèíèè
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for i := 0 to lines^.total - 1 do
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begin
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line := pCvPointArray(cvGetSeqElem(lines, i));
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cvLine(color_dst, line^[0], line^[1], CV_RGB(255, 0, 0), 3, CV_AA, 0);
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end;
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// ïîêàçûâàåì
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cvNamedWindow('Source', 1);
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cvShowImage('Source', src);
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cvNamedWindow('Hough', 1);
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cvShowImage('Hough', color_dst);
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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(src);
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cvReleaseImage(dst);
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cvReleaseImage(color_dst);
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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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