Function Brightness pada pengolahan citra digital

Function Brightness(MInput:Matriks; Value:integer):Matriks;
var
i,j : integer;
MOutput : Matriks;
begin
  SetLength(MOutput,Length(MInput),Length(MInput[0]));
  for i:=0 to Length(MOutput)-1 do
  begin
    for j:=0 to Length(MOutput[0])-1 do
    begin
      MOutput[i,j]:=MInput[i,j]+value;
      if (MOutput[i,j]>255) then MOutput[i,j]:=255;
      if (MOutput[i,j]<0) then MOutput[i,j]:=0;
    end;
  end;
  Brightness:=MOutput;
end;