mirror of
https://github.com/Laex/Delphi-OpenCV.git
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fde0aa2f53
LibTest [+] cv_CalcOpticalFlowPyrLK [+] cv_SnakeImage MultiDemo [+] CameraShift [+] Squares Signed-off-by: Laex <laex@bk.ru>
78 lines
1.7 KiB
ObjectPascal
78 lines
1.7 KiB
ObjectPascal
// JCL_DEBUG_EXPERT_GENERATEJDBG OFF
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// JCL_DEBUG_EXPERT_INSERTJDBG OFF
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// JCL_DEBUG_EXPERT_DELETEMAPFILE OFF
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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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{$I ..\..\uses_include.inc}
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;
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const
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filename = 'Resource\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 ñåðîãî)
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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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// íàðèñóåì 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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// îñâîáîæäàåì ðåñóðñû
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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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