mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 08:15:52 +01:00
128 lines
4.5 KiB
ObjectPascal
128 lines
4.5 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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// Mikhail Grigorev
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// email: sleuthhound@gmail.com
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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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// 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 MotionDetect;
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{$APPTYPE CONSOLE}
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{$POINTERMATH ON}
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{$R *.res}
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uses
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System.SysUtils,
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Math,
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uLibName in '..\..\..\include\uLibName.pas',
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highgui_c in '..\..\..\include\highgui\highgui_c.pas',
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imgproc.types_c in '..\..\..\include\imgproc\imgproc.types_c.pas',
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imgproc_c in '..\..\..\include\imgproc\imgproc_c.pas',
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imgproc in '..\..\..\include\imgproc\imgproc.pas',
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core in '..\..\..\include\core\core.pas',
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core.types_c in '..\..\..\include\core\Core.types_c.pas',
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core_c in '..\..\..\include\core\core_c.pas';
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{$DEFINE RECT}
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//{$DEFINE RECT} - using cvBoundingRect - work correctly
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//{DEFINE RECT} - not defined RECT - using cvMinAreaRect2
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var
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storage: pCvMemStorage = nil;
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capture: pCvCapture = nil;
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frame: pIplImage = nil;
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frame_grey: pIplImage = nil;
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difference_img: pIplImage = nil;
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oldframe_grey: pIplImage = nil;
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contours: pCvSeq = nil;
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c: pCvSeq = nil;
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rect: TCvRect;
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rect2d: TCvBox2D;
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key: integer;
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first: boolean = true;
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begin
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try
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capture := cvCreateCameraCapture(0);
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storage := cvCreateMemStorage(0);
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frame := cvQueryFrame(capture);
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frame_grey := cvCreateImage(cvSize(frame^.width, frame^.height), IPL_DEPTH_8U, 1);
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while true do
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begin
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frame := cvQueryFrame(capture);
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if frame = nil then
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break;
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cvCvtColor(frame, frame_grey, CV_RGB2GRAY);
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if first then
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begin
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difference_img := cvCloneImage(frame_grey);
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oldframe_grey := cvCloneImage(frame_grey);
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cvConvertScale(frame_grey, oldframe_grey, 1.0, 0.0);
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first := false;
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end;
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cvAbsDiff(oldframe_grey, frame_grey, difference_img);
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cvSmooth(difference_img, difference_img, CV_BLUR);
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cvThreshold(difference_img, difference_img, 25, 255, CV_THRESH_BINARY);
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contours := AllocMem(SizeOf(TCvSeq));
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cvFindContours(difference_img, storage, @contours, SizeOf(TCvContour), CV_RETR_LIST, CV_CHAIN_APPROX_NONE,
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cvPoint(0, 0));
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c := contours;
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while (c <> nil) do
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begin
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{$IFDEF RECT}
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rect := cvBoundingRect(c, 0);
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cvRectangle(frame, cvPoint(rect.x, rect.y), cvPoint(rect.x + rect.width, rect.y + rect.height),
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cvScalar(0, 0, 255, 0), 2, 8, 0);
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{$ELSE}
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rect2d := cvMinAreaRect2(c);
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cvRectangle(frame, cvPoint(Round(rect2d.center.x - rect2d.size.width / 2),
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Round(rect2d.center.y - rect2d.size.height / 2)), cvPoint(Round(rect2d.center.x + rect2d.size.width / 2),
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Round(rect2d.center.y + rect2d.size.height / 2)), cvScalar(0, 0, 255, 0), 2, 8, 0);
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{$ENDIF}
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c := c.h_next;
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end;
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cvShowImage('Output Image', frame);
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cvShowImage('Difference Image', difference_img);
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cvConvertScale(frame_grey, oldframe_grey, 1.0, 0.0);
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cvClearMemStorage(storage);
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contours := nil;
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c := nil;
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FreeMem(contours, SizeOf(TCvSeq));
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key := cvWaitKey(33);
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if (key = 27) then
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break;
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end;
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// <20>c<EFBFBD><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>c<EFBFBD><63>c<EFBFBD>
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cvReleaseMemStorage(storage);
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cvReleaseCapture(capture);
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cvReleaseImage(oldframe_grey);
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cvReleaseImage(difference_img);
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cvReleaseImage(frame_grey);
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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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