Bitmap/Write a PPM file: Difference between revisions
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=={{header|D}}==
The Image module contains a savePPM6 function to save binary PPM images.
=={{header|Delphi}}==
Helper class to enable bitmap export to ppm.
<lang Delphi>
program btm2ppm;
{$APPTYPE CONSOLE}
{$R *.res}
uses
System.SysUtils,
System.Classes,
Vcl.Graphics;
type
TBitmapHelper = class helper for TBitmap
public
procedure SaveAsPPM(FileName: TFileName);
end;
{ TBitmapHelper }
procedure TBitmapHelper.SaveAsPPM(FileName: TFileName);
var
i, j, color: Integer;
Header: AnsiString;
ppm: TMemoryStream;
begin
ppm := TMemoryStream.Create;
try
Header := Format('P6'#10'%d %d'#10'255'#10, [Self.Width, Self.Height]);
writeln(Header);
ppm.Write(Tbytes(Header), Length(Header));
for i := 0 to Self.Height - 1 do
for j := 0 to Self.Width - 1 do
begin
color := ColorToRGB(Self.Canvas.Pixels[i, j]);
ppm.Write(color, 3);
end;
ppm.SaveToFile(FileName);
finally
ppm.Free;
end;
end;
begin
with TBitmap.Create do
begin
LoadFromFile('Input.bmp');
SaveAsPPM('Output.ppm');
Free;
end;
end.
</lang>
=={{header|E}}==
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