Hi,
According to Adobe,large previews in the latest dng version aren't embedded as jpg anymore but as jxl. However if I am trying to extract to extract previews with exif tool only a very small jpg is returned. Is there any way to extract the embedded large jxl (preferably as jpg)?
Thanks for your help!
Can you send me a sample DNG containing a JXL like this? My email is philharvey66 at gmail.com
- Phil
Quote from: berliner_ffm on February 20, 2024, 10:41:53 AMIs there any way to extract the embedded large jxl (preferably as jpg)?
Exiftool only deals with metadata. It can extract the JXL, but can't convert it into a jpeg.
You can use this command to see all the preview images and see if there is a full size jpeg embedded as well
exiftool -Preview:all file.dng
Hi Phil,
I just send you an email.
@Stargeek: understood, that no conversion is possible. However -Preview:all does not return any full size preview, only a very small jpg (256px wide).
I hope there is a way to get at least a readable file out of the dng...
Thanks for your effort!
I got the sample, thanks. ExifTool 12.78 will have the ability to extract two JXL previews from the file you sent (1024x578 and 8236x4652 pixels) with the tag name PreviewJXL.
- Phil
Thanks a lot!
Thanks for new new release. The extraction of jxl-previews works beautifully!!