mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 08:15:52 +01:00
111 lines
3.6 KiB
ObjectPascal
111 lines
3.6 KiB
ObjectPascal
(* /*****************************************************************
|
|
// Delphi-OpenCV Demo
|
|
// Copyright (C) 2013 Project Delphi-OpenCV
|
|
// ****************************************************************
|
|
// Contributor:
|
|
// laentir Valetov
|
|
// email:laex@bk.ru
|
|
// ****************************************************************
|
|
// You may retrieve the latest version of this file at the GitHub,
|
|
// located at git://github.com/Laex/Delphi-OpenCV.git
|
|
// ****************************************************************
|
|
// The contents of this file are used with permission, subject to
|
|
// the Mozilla Public License Version 1.1 (the "License"); you may
|
|
// not use this file except in compliance with the License. You may
|
|
// obtain a copy of the License at
|
|
// http://www.mozilla.org/MPL/MPL-1_1Final.html
|
|
//
|
|
// Software distributed under the License is distributed on an
|
|
// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
// implied. See the License for the specific language governing
|
|
// rights and limitations under the License.
|
|
******************************************************************* *)
|
|
// JCL_DEBUG_EXPERT_GENERATEJDBG OFF
|
|
// JCL_DEBUG_EXPERT_INSERTJDBG OFF
|
|
// JCL_DEBUG_EXPERT_DELETEMAPFILE OFF
|
|
program CameraCaptureAndFindContours;
|
|
|
|
{$APPTYPE CONSOLE}
|
|
{$R *.res}
|
|
|
|
uses
|
|
System.SysUtils,
|
|
highgui_c,
|
|
core_c,
|
|
Core.types_c,
|
|
imgproc_c,
|
|
imgproc.types_c,
|
|
uResourcePaths;
|
|
|
|
var
|
|
capture: PCvCapture;
|
|
width: Double;
|
|
height: Double;
|
|
frame: PIplImage;
|
|
gframe: PIplImage = nil;
|
|
counter: Integer;
|
|
filename: pCVChar;
|
|
cc: Integer;
|
|
storage: pCvMemStorage = nil;
|
|
contours: pCvSeq = nil;
|
|
h_next, c: pCvSeq;
|
|
|
|
begin
|
|
try
|
|
// ïîëó÷àåì ëþáóþ ïîäêëþ÷¸ííóþ êàìåðó
|
|
capture := cvCreateCameraCapture(CV_CAP_ANY); // cvCaptureFromCAM( 0 );
|
|
if not Assigned(capture) then
|
|
Halt;
|
|
// óçíàåì øèðèíó è âûcîòó êàäðà
|
|
width := cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH);
|
|
height := cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT);
|
|
WriteLn(Format('[i] %.0f x %.0f', [width, height]));
|
|
frame := Nil;
|
|
cvNamedWindow('Capture', CV_WINDOW_AUTOSIZE);
|
|
WriteLn('[i] press Enter for capture image and Esc for quit!');
|
|
counter := 0;
|
|
filename := AllocMem(512);
|
|
|
|
while true do
|
|
begin
|
|
// ïîëó÷àåì êàäð
|
|
frame := cvQueryFrame(capture);
|
|
// ïîêàçûâàåì
|
|
if not Assigned(gframe) then
|
|
begin
|
|
gframe := cvCreateImage(cvSize(frame^.width, frame^.height), IPL_DEPTH_8U, 1);
|
|
storage := cvCreateMemStorage(0);
|
|
contours := AllocMem(SizeOf(TCvSeq));
|
|
end;
|
|
cvCvtColor(frame, gframe, CV_BGR2GRAY);
|
|
cvThreshold(gframe, gframe, 128, 255, CV_THRESH_BINARY_INV);
|
|
cvFindContours(gframe, storage, @contours, SizeOf(TCvContour), CV_RETR_LIST, CV_CHAIN_APPROX_SIMPLE,
|
|
cvPoint(0, 0));
|
|
contours := cvApproxPoly(contours, SizeOf(TCvContour), storage, CV_POLY_APPROX_DP, 5, 1);
|
|
|
|
cvDrawContours(frame, contours, CV_RGB(255, 0, 0), CV_RGB(0, 255, 0), 2, 2, CV_AA, cvPoint(0, 0));
|
|
cvShowImage('capture', frame);
|
|
|
|
cc := cvWaitKey(33);
|
|
if (cc = 27) then
|
|
Break
|
|
else if (cc = 13) then
|
|
begin
|
|
// cîõðàíÿåì êàäð â ôàéë
|
|
filename := pCVChar(AnsiString(cResourceResult + Format('Image %d.jpg'#0, [counter])));
|
|
WriteLn('[i] capture - ', filename);
|
|
cvSaveImage(filename, frame);
|
|
Inc(counter);
|
|
end;
|
|
end;
|
|
// îcâîáîæäàåì ðåcóðcû
|
|
cvDestroyWindow('capture');
|
|
cvReleaseCapture(capture);
|
|
cvReleaseImage(gframe);
|
|
except
|
|
on E: Exception do
|
|
WriteLn(E.ClassName, ': ', E.Message);
|
|
end;
|
|
|
|
end.
|