mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 16:25:53 +01:00
88 lines
2.0 KiB
ObjectPascal
88 lines
2.0 KiB
ObjectPascal
program Rand;
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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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Core.types_c in '..\..\include\ñore\Core.types_c.pas',
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core_c in '..\..\include\ñore\core_c.pas',
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highgui_c in '..\..\include\highgui\highgui_c.pas';
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Const
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// èìÿ êàðòèíêè
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filename = '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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// èñõîäíàÿ
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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 ñîñòîÿíèÿ ÃÏÑ×
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rng := TCvRNG($7FFFFFFF);
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// ïðîáåãàåìñÿ ïî âñåì ïèêñåëÿì 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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// êðàñíûå ïèêñåëè
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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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// îñâîáîæäàåì ðåñóðñû
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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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