mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 16:25:53 +01:00
7fcbee712c
Multidemo [+] fback_c (cvCalcOpticalFlowFarneback) [+] minarea (cvMinEnclosingCircle, cvMinAreaRect2) Signed-off-by: Laex <laex@bk.ru>
100 lines
3.2 KiB
ObjectPascal
100 lines
3.2 KiB
ObjectPascal
// JCL_DEBUG_EXPERT_GENERATEJDBG OFF
|
|
// JCL_DEBUG_EXPERT_INSERTJDBG OFF
|
|
// JCL_DEBUG_EXPERT_DELETEMAPFILE OFF
|
|
program cv_WarpPerspective;
|
|
|
|
{$APPTYPE CONSOLE}
|
|
{$POINTERMATH ON}
|
|
{$R *.res}
|
|
|
|
uses
|
|
System.SysUtils,
|
|
uLibName in '..\..\..\include\uLibName.pas',
|
|
highgui_c in '..\..\..\include\highgui\highgui_c.pas',
|
|
core_c in '..\..\..\include\ñore\core_c.pas',
|
|
Core.types_c in '..\..\..\include\ñore\Core.types_c.pas',
|
|
imgproc.types_c in '..\..\..\include\imgproc\imgproc.types_c.pas',
|
|
imgproc_c in '..\..\..\include\imgproc\imgproc_c.pas',
|
|
legacy in '..\..\..\include\legacy\legacy.pas',
|
|
calib3d in '..\..\..\include\calib3d\calib3d.pas',
|
|
imgproc in '..\..\..\include\imgproc\imgproc.pas',
|
|
haar in '..\..\..\include\objdetect\haar.pas',
|
|
objdetect in '..\..\..\include\objdetect\objdetect.pas',
|
|
tracking in '..\..\..\include\video\tracking.pas',
|
|
Core in '..\..\..\include\ñore\core.pas'
|
|
;
|
|
|
|
const
|
|
filename = 'resource\opencv_logo_with_text.png';
|
|
|
|
Var
|
|
src: pIplImage = nil;
|
|
dst: pIplImage = nil;
|
|
srcQuad, dstQuad: pCvPoint2D32f;
|
|
warp_matrix: pCvMat;
|
|
|
|
begin
|
|
try
|
|
// Ïîëó÷àåì êàðòèíêó (â ãðàäàöèÿõ ñåðîãî)
|
|
src := cvLoadImage(filename, CV_LOAD_IMAGE_GRAYSCALE);
|
|
WriteLn(Format('[i] image: %s', [filename]));
|
|
|
|
cvNamedWindow('Original', CV_WINDOW_AUTOSIZE);
|
|
cvShowImage('Original', src);
|
|
|
|
// ìàòðèöà ïðåîáðàçîâàíèÿ
|
|
warp_matrix := cvCreateMat(3, 3, CV_32FC1);
|
|
|
|
// êëîíèðóåì êàðòèíêó
|
|
dst := cvCloneImage(src);
|
|
|
|
// çàäà¸ì òî÷êè
|
|
srcQuad := AllocMem(SizeOf(TCvPoint2D32f) * 4);
|
|
dstQuad := AllocMem(SizeOf(TCvPoint2D32f) * 4);
|
|
srcQuad[0].x := 0; // src Top left
|
|
srcQuad[0].y := 0;
|
|
srcQuad[1].x := src.width - 1; // src Top right
|
|
srcQuad[1].y := 0;
|
|
srcQuad[2].x := 0; // src Bottom left
|
|
srcQuad[2].y := src.height - 1;
|
|
srcQuad[3].x := src.width - 1; // src Bot right
|
|
srcQuad[3].y := src.height - 1;
|
|
// - - - - - - - - - - - - - -//
|
|
dstQuad[0].x := src.width * 0.05; // dst Top left
|
|
dstQuad[0].y := src.height * 0.33;
|
|
dstQuad[1].x := src.width * 0.9; // dst Top right
|
|
dstQuad[1].y := src.height * 0.25;
|
|
dstQuad[2].x := src.width * 0.2; // dst Bottom left
|
|
dstQuad[2].y := src.height * 0.7;
|
|
dstQuad[3].x := src.width * 0.8; // dst Bot right
|
|
dstQuad[3].y := src.height * 0.9;
|
|
|
|
// ïîëó÷àåì ìàòðèöó ïðåîáðàçîâàíèÿ
|
|
cvGetPerspectiveTransform(srcQuad, dstQuad, warp_matrix);
|
|
// ïðåîáðàçîâàíèå ïåðñïåêòèâû
|
|
// CV_WARP_INVERSE_MAP — èñïîëüçóåòñÿ îáðàòíàÿ òðàíñôîðìàöèÿ èç dst â src
|
|
// CV_WARP_FILL_OUTLIERS — çàïîëíèòü âñå ïèêñåëè öåëåâîãî èçîáðàæåíèÿ (åñëè ïèêñåëè îòñóòñòâóþò íà èñõîäíîì èçîáðàæåíè èñïîëüçóþòñÿ fillval)
|
|
// fillval — çíà÷åíèå äëÿ çàïîëíåíèÿ ïèêñåëåé âíå èñõîäíîãî èçîáðàæåíèÿ
|
|
cvWarpPerspective(src, dst, warp_matrix, CV_INTER_LINEAR or CV_WARP_FILL_OUTLIERS, cvScalarAll(0));
|
|
|
|
// ïîêàçûâàåì
|
|
cvNamedWindow('WarpPerspective', CV_LOAD_IMAGE_GRAYSCALE);
|
|
cvShowImage('WarpPerspective', dst);
|
|
|
|
// æä¸ì íàæàòèÿ êëàâèøè
|
|
cvWaitKey(0);
|
|
|
|
// îñâîáîæäàåì ðåñóðñû
|
|
FreeMem(srcQuad);
|
|
FreeMem(dstQuad);
|
|
cvReleaseImage(src);
|
|
cvReleaseImage(dst);
|
|
cvReleaseMat(warp_matrix);
|
|
cvDestroyAllWindows();
|
|
except
|
|
on E: Exception do
|
|
WriteLn(E.ClassName, ': ', E.Message);
|
|
end;
|
|
|
|
end.
|