Reduce size of JPG.
Based on jpegoptim 1.4.3.
Note: You can also change the compression of JPEG with CONVERT PICTURE. IF the image itself is too large for its frame, you might want to scale, crop or transform it with TRANSFORM PICTURE.
##Platform
| carbon | cocoa | win32 | win64 |
|---|---|---|---|
| 🆗 | 🆗 | 🆗 | 🆗 |
##Commands
Jpegoptim##Examples
//read jpeg file
$path:=Get 4D folder(Current resources folder)+"image.jpg"
READ PICTURE FILE($path;$image)
//by default, all are stripped
$strip:=JPEG_STRIP_COM | JPEG_STRIP_EXIF | JPEG_STRIP_ICC | JPEG_STRIP_IPTC | JPEG_STRIP_XMP
//0:lossless optimisation. 1...100:lossy optimisation
$quality:=0
$folderPath:=System folder(Desktop)+Generate UUID+Folder separator
CREATE FOLDER($folderPath;*)
For ($quality;0;100)
$jpeg:=Jpegoptim ($image;$strip;$quality)
WRITE PICTURE FILE($folderPath+String($quality)+".jpg";$jpeg)
End for
##Discussion
4D pictures can contain multiple formats. The plugin first searches for .jpeg format. If found, "meta" information is stripped as instructed. If quality is specified, a lossy conversion is applied too.