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 Change the palette to 256 color
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brm121966

USA
53 Posts

Posted - Feb 10 2022 :  10:14:50  Show Profile  Reply
Hi Nigel. Thanks for the information. But how to use it. Where to add gPNGAlphaThreshold in the program? Thank you.

  ImageEnView1 := TImageEnView.Create(nil);
  with ImageEnView1 do begin
    IO.LoadFromFile( 'Cover.png' );
    Proc.Resample(400, 400, rfLanczos3, True);
    Proc.ConvertTo(256, ieThreshold);                //Reduce colors
    Proc.Sharpen(10,4);
    IEBitmap.PixelFormat := ie8p;                    // Set PixelFormat to 8bit
    IEGlobalSettings().AutoSetBitDepth := True;
    OutputFilename := 'Folder.png';
    IO.Params.PNG_Compression := 8;
    IO.SaveToFile(OutputFilename, ioPNG);           // Save it
    Free;
  end;

Rudolf
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xequte

38128 Posts

Posted - Feb 10 2022 :  21:19:31  Show Profile  Reply
Hi Rudolf

Anytime before saving to PNG.

Nigel
Xequte Software
www.imageen.com
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brm121966

USA
53 Posts

Posted - Feb 12 2022 :  21:21:12  Show Profile  Reply
Hi Nigel.
Compilation error. [dcc64 Error] U_Edit_Settings_File.pas(666): E2003 Undeclared identifier: 'gPNGAlphaThreshold'
what module should i connect?
There is no description in the help for gPNGAlphaThreshold.
Thanks.

Rudolf
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xequte

38128 Posts

Posted - Feb 13 2022 :  17:43:52  Show Profile  Reply
Hi Rudolf

Please add pngfiltw to your uses clause.

Nigel
Xequte Software
www.imageen.com
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brm121966

USA
53 Posts

Posted - Feb 14 2022 :  10:12:43  Show Profile  Reply
Hi Nigel.
Did not help. There is no mention of gPNGAlphaThreshold in ImageEn\Source.

Rudolf
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xequte

38128 Posts

Posted - Feb 15 2022 :  03:59:09  Show Profile  Reply
Hi Rudolf

You need to be using Beta 201 or newer. If you have downloaded the beta, ensure your Delphi library path points to the beta source folder.


Nigel
Xequte Software
www.imageen.com
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brm121966

USA
53 Posts

Posted - Feb 15 2022 :  20:57:57  Show Profile  Reply
Hi Nigel.
I use.

ImageEn 10.3.0 Packages
--------------------------------
Version : 10.3.0.6203
Date : 2021/1/17
Target : Delphi XE5 64bit (c:\ProgramData\ImageEn\DelphiXE5_64\)
--------------------------------
www.ImageEn.com

Path library - C:\ProgramData\ImageEn\DelphiXE5_64
--------------------------------

Where can I get beta 201 version?

Thanks.


Rudolf
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xequte

38128 Posts

Posted - Feb 16 2022 :  14:33:59  Show Profile  Reply
I've emailed you the latest beta.



Nigel
Xequte Software
www.imageen.com
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brm121966

USA
53 Posts

Posted - Mar 12 2022 :  15:08:46  Show Profile  Reply
Hi Nigel.
The new version (10.3.5) solved the problem.
Thanks.

Rudolf
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xequte

38128 Posts

Posted - Mar 12 2022 :  18:10:18  Show Profile  Reply


Nigel
Xequte Software
www.imageen.com
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