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 Lossless to true. Otherwise, specify the level of compression using 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.ImageQuality := 0.80;
ImageEnView1.IO.SaveToFileWebP( 'D:\image.webp; );

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

WebP Size Comparisons

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

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

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

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

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

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

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

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

TImageEnIO.SaveToFileWebP