Przedstawiony poniżej kod umożliwia stworzenie efektu rozmycia (blur) na dowolnym obrazie BMP. Format pikseli musi być 24 lub 32 bitowy. [crayon-66228dc3f2a78111536316/] Teraz wystarczy wywołać procedurę : [crayon-66228dc3f2a82323199996/] Autor: Nakiel

Rozmycie obrazu - Unit1.pl - Programowanie

Rozmycie obrazu

Przedstawiony poniżej kod umożliwia stworzenie efektu rozmycia (blur) na dowolnym obrazie BMP. Format pikseli musi być 24 lub 32 bitowy.

procedure Rozmycie( Can: TCanvas; X, Y, Szerokosc, Wysokosc : Integer);

var

  cx, cy: Smallint;

  r, g, b: Byte;

  Row1: pRGBTripleArray;

  Row2: pRGBTripleArray;

  Row3: pRGBTripleArray;

  TEMP: TBitmap;

  CurRect: TRect;

begin

  TEMP := TBitmap.Create;

  try

    with TEMP do begin

      Width := Szerokosc;

      Height := Wysokosc;

      CurRect := Rect(0, 0, Szerokosc, Wysokosc);

      PixelFormat := pf24Bit;

      Canvas.CopyRect(CurRect, Can, Rect(X,Y,Szerokosc, Wysokosc));

      with Canvas do begin

        for cy := 1 to (Height - 2) do begin

          Row1 := ScanLine[cy - 1];

          Row2 := ScanLine[cy];

          Row3 := ScanLine[cy + 1];


          for cx := 1 to (Width - 2) do begin

            r := (Row1[cx - 1].rgbtRed+Row1[cx].rgbtRed+

            Row1[cx + 1].rgbtRed+

            Row2[cx - 1].rgbtRed+

            Row2[cx + 1].rgbtRed+

            Row2[cx - 1].rgbtRed+

            Row3[cx].rgbtRed+

            Row3[cx + 1].rgbtRed+

            Row3[cx].rgbtRed) div 9;


            g := (Row1[cx - 1].rgbtGreen+

            Row1[cx].rgbtGreen+

            Row1[cx + 1].rgbtGreen+

            Row2[cx - 1].rgbtGreen+

            Row2[cx + 1].rgbtGreen+

            Row2[cx - 1].rgbtGreen+

            Row3[cx].rgbtGreen+

            Row3[cx + 1].rgbtGreen+

            Row3[cx].rgbtGreen) div 9;


            b := (Row1[cx - 1].rgbtBlue+

            Row1[cx].rgbtBlue+

            Row1[cx + 1].rgbtBlue+

            Row2[cx - 1].rgbtBlue+

            Row2[cx + 1].rgbtBlue+

            Row2[cx - 1].rgbtBlue+

            Row3[cx].rgbtBlue+

            Row3[cx + 1].rgbtBlue+

            Row3[cx].rgbtBlue) div 9;


            Row2[cx].rgbtBlue := b;

            Row2[cx].rgbtGreen := g;

            Row2[cx].rgbtRed := r;

          end;

        end;

      end;

      Can.CopyRect(Rect(X,Y,Szerokosc,Wysokosc), Canvas, CurRect);

    end;

  finally

    TEMP.Free;

  end;

end;

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procedure Rozmycie( Can: TCanvas; X, Y, Szerokosc, Wysokosc : Integer);

var

cx, cy: Smallint;

r, g, b: Byte;

Row1: pRGBTripleArray;

Row2: pRGBTripleArray;

Row3: pRGBTripleArray;

TEMP: TBitmap;

CurRect: TRect;

begin

TEMP := TBitmap.Create;

try

with TEMP do begin

Width := Szerokosc;

Height := Wysokosc;

CurRect := Rect(0, 0, Szerokosc, Wysokosc);

PixelFormat := pf24Bit;

Canvas.CopyRect(CurRect, Can, Rect(X,Y,Szerokosc, Wysokosc));

with Canvas do begin

for cy := 1 to (Height - 2) do begin

Row1 := ScanLine[cy - 1];

Row2 := ScanLine[cy];

Row3 := ScanLine[cy + 1];

for cx := 1 to (Width - 2) do begin

r := (Row1[cx - 1].rgbtRed+Row1[cx].rgbtRed+

Row1[cx + 1].rgbtRed+

Row2[cx - 1].rgbtRed+

Row2[cx + 1].rgbtRed+

Row2[cx - 1].rgbtRed+

Row3[cx].rgbtRed+

Row3[cx + 1].rgbtRed+

Row3[cx].rgbtRed) div 9;

g := (Row1[cx - 1].rgbtGreen+

Row1[cx].rgbtGreen+

Row1[cx + 1].rgbtGreen+

Row2[cx - 1].rgbtGreen+

Row2[cx + 1].rgbtGreen+

Row2[cx - 1].rgbtGreen+

Row3[cx].rgbtGreen+

Row3[cx + 1].rgbtGreen+

Row3[cx].rgbtGreen) div 9;

b := (Row1[cx - 1].rgbtBlue+

Row1[cx].rgbtBlue+

Row1[cx + 1].rgbtBlue+

Row2[cx - 1].rgbtBlue+

Row2[cx + 1].rgbtBlue+

Row2[cx - 1].rgbtBlue+

Row3[cx].rgbtBlue+

Row3[cx + 1].rgbtBlue+

Row3[cx].rgbtBlue) div 9;

Row2[cx].rgbtBlue := b;

Row2[cx].rgbtGreen := g;

Row2[cx].rgbtRed := r;

end;

Can.CopyRect(Rect(X,Y,Szerokosc,Wysokosc), Canvas, CurRect);

end;

finally

TEMP.Free;

end;

Teraz wystarczy wywołać procedurę :

Rozmycie(image1.picture.Bitmap.Canvas,-10,-10,650,490);

1	Rozmycie(image1.picture.Bitmap.Canvas,-10,-10,650,490);

Autor: Nakiel