DelphiX 圖像處理：TDIB.GaussianBlur 高斯模糊 (雙緩衝版)

效果預覽

差異說明

此版本使用獨立 TDIB 物件 (dib) 作為來源緩衝，避免就地修改導致疊加效果。GaussianBlur(Source: TDIB; Radius: Integer) 從來源讀取並寫入當前 DIB。

完整程式碼

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DIB, StdCtrls;

type
  TForm1 = class(TForm)
    DXPaintBox1: TDXPaintBox;
    Button1: TButton;
    Button2: TButton;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

var
  Dib: TDIB;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Dib := TDIB.Create;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  Dib.Free;
end;

procedure TForm1.Button1Click(Sender: TObject);
const
  ImgPath = 'C:\Temp\DX.jpg';
begin
  Dib.LoadFromFile(ImgPath);
  DXPaintBox1.DIB.Assign(Dib);
  DXPaintBox1.Width := Dib.Width;
  DXPaintBox1.Height := Dib.Height;
  DXPaintBox1.Repaint;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  DXPaintBox1.DIB.GaussianBlur(Dib, 1);  // 半徑 1
  DXPaintBox1.DIB.Assign(Dib);           // 同步回來源以便疊加
  DXPaintBox1.Repaint;
end;

end.