[angvelem]

Прекрасно всё работает:

Код:

unit Unit28;

interface

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

type
  TForm1 = class(TForm)
    Image1: TImage;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    OpenPictureDialog1: TOpenPictureDialog;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  bp, bp1 : TBitmap;
  pic: array of array of TColor;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  I, J : Integer;
begin
  if (OpenPictureDialog1.Execute) and FileExists(OpenPictureDialog1.FileName) then
  begin
    Image1.Picture.LoadFromFile(OpenPictureDialog1.FileName);
    bp := TBitmap.Create;
    bp.LoadFromFile(OpenPictureDialog1.FileName);
  end;

  SetLength(pic, bp.Width, bp.Height);
  for I := 0 to bp.Width - 1 do
    for J := 0 to bp.Height - 1 do
      pic[I, J] := bp.Canvas.Pixels[I, J];
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  I, J : Integer;
begin
  for I := 0 to bp.Width - 1 do
    for J := 0 to bp.Height - 1 do
      Form1.Canvas.Pixels[I, J] := pic[I, J];
end;

procedure TForm1.Button3Click(Sender: TObject);
var
  I, J : Integer;
begin
  bp1 := TBitmap.Create;
  bp1.Width := bp.Width;
  bp1.Height := bp.Height;
  for I := 0 to bp1.Width - 1 do
    for J := 0 to bp1.Height - 1 do
      bp1.Canvas.Pixels[I, J] := pic[I, J];

  bp1.SaveToFile('ball_new.bmp');
end;

end.