TImageEnIO.SaveToFileWebP

Declaration

procedure SaveToFileWebP(const FileName: WideString);

Description

Saves the current image to a file in WebP format.
The method used to save WebP files is specified by ActiveWebPEngine.

To save the image losslessly, set HDP_Lossless to true. Otherwise, specify the level of compression using HDP_ImageQuality.

Note:
◼For ImageMagick Plug-In, use a Dictionary to specify quality options
◼If an internal save error is encountered Aborting will return true. Saving issues due to insufficient write permissions and disk write failures will raise an exception.
◼To abort while saving set Aborting to true

Examples

// Save an image to a WebP file with 80% quality
ImageEnView1.IO.Params.HDP_ImageQuality := 0.80;
ImageEnView1.IO.SaveToFileWebP( 'D:\image.webp; );

// Save an image to a lossless WebP
ImageEnView1.IO.Params.HDP_Lossless := True;
ImageEnView1.IO.SaveToFileWebP( 'D:\image.webp' );

WebP Size Comparisons

ImageEnView1.IO.LoadFromFile( 'D:\Alpha.png' ); // Original PNG - 335KB

ImageEnView1.IO.Params.HDP_Lossless := True;
ImageEnView1.IO.SaveToFile( 'D:\imageLossless.WebP' ); // 143KB (Lossless)

ImageEnView1.IO.Params.HDP_ImageQuality := 1.0;
ImageEnView1.IO.Params.HDP_Lossless := False;
ImageEnView1.IO.SaveToFile( 'D:\image100.WebP' ); // 62KB

ImageEnView1.IO.Params.HDP_ImageQuality := 0.9;
ImageEnView1.IO.Params.HDP_Lossless := False;
ImageEnView1.IO.SaveToFile( 'D:\image90.WebP' ); // 38KB

ImageEnView1.IO.Params.HDP_ImageQuality := 0.7;
ImageEnView1.IO.Params.HDP_Lossless := False;
ImageEnView1.IO.SaveToFile( 'D:\image70.WebP' ); // 26KB

ImageEnView1.IO.Params.HDP_ImageQuality := 0.5;
ImageEnView1.IO.Params.HDP_Lossless := False;
ImageEnView1.IO.SaveToFile( 'D:\image50.WebP' ); // 23KB

ImageEnView1.IO.Params.HDP_ImageQuality := 0.2;
ImageEnView1.IO.Params.HDP_Lossless := False;
ImageEnView1.IO.SaveToFile( 'D:\image20.WebP' ); // 20KB

ImageEnView1.IO.Params.HDP_ImageQuality := 0.01;
ImageEnView1.IO.Params.HDP_Lossless := False;
ImageEnView1.IO.SaveToFile( 'D:\image01.WebP' ); // 17KB

TImageEnIO.SaveToFileWebP