mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-18 01:05:53 +01:00
114 lines
3.2 KiB
ObjectPascal
114 lines
3.2 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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// 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 cv_RandInt;
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{$APPTYPE CONSOLE}
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{$R *.res}
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uses
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System.SysUtils,
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highgui_c,
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core_c,
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Core.types_c,
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uResourcePaths;
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const
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// èìÿ êàðòèíêè
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filename = cResourceMedia + 'opencv_logo_with_text.png';
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type
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TArrayOfByte = array [0 .. 0] of Byte;
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pArrayOfByte = ^TArrayOfByte;
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var
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// ècõîäíàÿ
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image: PIplImage = nil;
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dst: PIplImage = nil;
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count, x, y: Integer;
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rng: TCvRNG;
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ptr: pArrayOfByte;
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begin
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try
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// ïîëó÷àåì êàðòèíêó
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image := cvLoadImage(filename, 1);
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Writeln('[i] image: ', filename);
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if not Assigned(image) then
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Halt;
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// êëîíèðóåì êàðòèíêó
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dst := cvCloneImage(image);
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count := 0;
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// îêíî äëÿ îòîáðàæåíèÿ êàðòèíêè
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cvNamedWindow('original', CV_WINDOW_AUTOSIZE);
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cvNamedWindow('noise', CV_WINDOW_AUTOSIZE);
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// èíèöèàëèçàöèÿ cîcòîÿíèÿ ÃÏc×
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rng := TCvRNG($7FFFFFFF);
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// ïðîáåãàåìcÿ ïî âcåì ïèêcåëÿì èçîáðàæåíèÿ
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for y := 0 to dst^.height - 1 do
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begin
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ptr := pArrayOfByte(dst^.imageData + y * dst^.widthStep);
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for x := 0 to dst^.width - 1 do
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begin
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if (cvRandInt(rng) mod 100) >= 97 then
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begin
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// 3 êàíàëà
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ptr[3 * x] := cvRandInt(rng) mod 255; // B
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ptr[3 * x + 1] := cvRandInt(rng) mod 255; // G
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ptr[3 * x + 2] := cvRandInt(rng) mod 255; // R
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Inc(count);
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// êðccíûå ïèêcåëè
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ptr[3 * x] := 0;
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ptr[3 * x + 1] := 0;
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ptr[3 * x + 2] := 255;
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end;
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end;
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end;
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Writeln(Format('[i] noise: %d(%.2f %%)', [count, count / (dst^.height * dst^.width) * 100]));
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// ïîêàçûâàåì êàðòèíêó
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cvShowImage('original', image);
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cvShowImage('noise', dst);
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// æä¸ì íàæàòèÿ êëàâèøè
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cvWaitKey(0);
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// îcâîáîæäàåì ðåcóðcû
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cvReleaseImage(image);
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cvReleaseImage(dst);
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// óäàëÿåì îêíà
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cvDestroyWindow('original');
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cvDestroyWindow('noise');
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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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