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Date Posted: 20:31:28 04/22/03 Tue
Author: Michel
Subject: Re: Demo Limitations?
In reply to: Mitch Wolberg 's message, "Demo Limitations?" on 16:41:08 04/22/03 Tue


Hi Mitch,

There is not limitation as such.

Your sample code looks ok, but I don't see any interaction with the TImageScrollBox. You can use,

ImageScrollBox.LoadFromFile(SaveDlg.FileName, 1);

after the sharpen. Or you can use the Graphic property.

Best regards,

Michel

>I'm evaluating the Envision library for a project
>working with very large B/W Tiff G4 iamges. These
>files may be 10,000 or more pixels high by 2,000 or
>more wide. They consist of a horizontal and vertical
>grid with several curves. The problem is to view the
>entire image on the screen and still be able to see
>the curves.
>
>Working with the TImageScrollBox I can use the Sharpen
>transform and see a noticeable improvement. If I just
>run the Sharpen transform on the graphic and save it
>there is very little difference. Is this a limitation
>of the demo version or do I need to use the
>TImageScrollbox to see these changes?
>
>Here's the code I'm using for the offscreen sharpening:
>
>procedure TForm1.Sharpen2Click(Sender: TObject);
>var
> tif : TTiffGraphic ;
> shrp : TSharpenTransform ;
>begin
>
> if OpenDlg.Execute and SaveDlg.Execute then begin
> tif := TTiffGraphic.Create ;
> tif.LoadFromFile ( OpenDlg.FileName ) ;
> shrp := TSharpenTransform.Create ;
> shrp.Apply ( tif ) ;
> shrp.Free ;
> tif.SaveToFile ( SaveDlg.FileName ) ;
> tif.Free ;
> end ;
>end;
>
>Mitch

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