mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 16:25:53 +01:00
96 lines
3.0 KiB
ObjectPascal
96 lines
3.0 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_SnakeImage;
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{$APPTYPE CONSOLE}
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{$POINTERMATH ON}
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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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ocv.legacy,
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uResourcePaths;
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const
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w = 500;
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filename = cResourceMedia + 'cat2.jpg';
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var
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imgA, imgB, imgAA: pIplImage;
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storage: pCvMemStorage;
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contour: pCvPointArray;
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Approx_contours: PcvSeq;
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contour_num: integer;
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i1, i2, i, j, length, f1: integer;
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point: pInteger;
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c_alpha: single = 0.45;
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c_beta: single = 0.10;
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c_gamma: single = 0.45;
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contours: pCvPoint;
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begin
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try
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cvNamedWindow('image', 1);
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imgA := cvLoadImage(filename, CV_LOAD_IMAGE_UNCHANGED);
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imgAA := cvCreateImage(cvSize(imgA^.width, imgA^.Height), imgA^.depth, imgA^.nChannels);
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// Smooth or Copy
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// cvSmooth(imgA, imgAA, CV_GAUSSIAN, 7, 0, 0);
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cvCopy(imgA, imgAA);
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imgB := cvCreateImage(cvSize(imgA^.width, imgA^.Height), IPL_DEPTH_8U, 1);
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cvCvtColor(imgAA, imgB, CV_BGR2GRAY);
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length := 200;
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contour := AllocMem(sizeof(TCvPoint) * length);
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for i := 0 to length - 1 do
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begin
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contour[i].x := round(200 * cos(2 * PI * i / length) + 100);
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contour[i].y := round(200 * sin(2 * PI * i / length) + 100);
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end;
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while true do
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begin
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cvSnakeImage(imgB, contour, length, @c_alpha, @c_beta, @c_gamma, CV_VALUE, cvSize(21, 21),
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cvTermCriteria(CV_TERMCRIT_ITER, 1, 0.0), 1);
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cvCopy(imgAA, imgA);
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for i := 0 to length - 2 do
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cvLine(imgA, contour[i], contour[i + 1], CV_RGB(255, 0, 0), 2, 8, 0);
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cvLine(imgA, contour[length - 1], contour[0], CV_RGB(255, 0, 0), 2, 8, 0);
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cvShowImage('image', imgA);
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if cvWaitKey(200) = 27 then
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Break;
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end;
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cvReleaseImage(imgA);
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cvReleaseImage(imgB);
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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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