mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-18 01:05:53 +01:00
139 lines
3.8 KiB
ObjectPascal
139 lines
3.8 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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unit uMainForm;
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interface
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uses
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Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
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Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, uOCVTypes,
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uOCVImageOperation, uOCVSource, uOCVView;
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type
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TMainForm = class(TForm)
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ocvw1: TocvView;
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ocvw2: TocvView;
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ocvcmrsrc1: TocvCameraSource;
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ocvmgprtn1: TocvImageOperation;
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btn1: TButton;
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btn2: TButton;
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lbl1: TLabel;
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procedure btn1Click(Sender: TObject);
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procedure ocvw2MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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procedure ocvw2MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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procedure ocvw2AfterPaint(Sender: TObject; const IplImage: IocvImage);
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procedure ocvw2MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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procedure btn2Click(Sender: TObject);
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private
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SnapImage: IocvImage;
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mX, mY: Integer;
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mX1, mY1: Integer;
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mDown: Boolean;
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public
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end;
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var
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MainForm: TMainForm;
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implementation
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{$R *.dfm}
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uses
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ocv.core_c,
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ocv.core.types_c, ocv.cvutils;
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procedure TMainForm.btn1Click(Sender: TObject);
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begin
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SnapImage := ocvcmrsrc1.Image;
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mX := 0;
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mY := 0;
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mX1 := 0;
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mY1 := 0;
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ocvw2.DrawImage(SnapImage);
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lbl1.Visible := True;
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end;
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procedure TMainForm.btn2Click(Sender: TObject);
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begin
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(ocvmgprtn1.Operation as TocvMatchTemplate).IPLTemplate := CropIplImage(SnapImage.IpImage, CvRect(
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{} Trunc(ocvcmrsrc1.ImageWidth * mX / ocvw2.Width),
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{} Trunc(ocvcmrsrc1.ImageHeight * mY / ocvw2.Height),
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{} Trunc(ocvcmrsrc1.ImageWidth * (mX1 - mX) / ocvw2.Width),
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{} Trunc(ocvcmrsrc1.ImageHeight * (mY1 - mY) / ocvw2.Height)));
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end;
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procedure TMainForm.ocvw2AfterPaint(Sender: TObject; const IplImage: IocvImage);
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begin
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// if mDown then
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ocvw2.Canvas.Brush.Style := bsClear;
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ocvw2.Canvas.Pen.Color := clRed;
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ocvw2.Canvas.Pen.Width := 2;
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ocvw2.Canvas.Rectangle(mX, mY, mX1, mY1);
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end;
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procedure TMainForm.ocvw2MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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begin
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mDown := True;
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mX := X;
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mY := Y;
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mX1 := X;
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mY1 := Y;
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btn2.Enabled := False;
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end;
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procedure TMainForm.ocvw2MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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begin
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if mDown then
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begin
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mX1 := X;
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mY1 := Y;
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ocvw2.Invalidate;
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end;
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end;
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procedure TMainForm.ocvw2MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
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Var
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t: Integer;
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begin
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if mX1 < mX then
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begin
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t := mX;
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mX := mX1;
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mX1 := t;
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end;
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if mY1 < mY then
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begin
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t := mY;
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mY := mY1;
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mY1 := t;
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end;
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mDown := False;
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ocvw2.Invalidate;
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btn2.Enabled := (mX <> mX1) and (mY <> mY1);
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end;
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end.
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