JPEG Curiosity

[ame]

Hi,

There is a way to get the compression ratio/level of JPEG saved?
Example: on a scale of 1-12 of Photoshop discover with which level has been saved the file. Or a scale from 0 to 1

Stefano

[Phil Harvey]

Hi Stefano,

ExifTool will report the quality setting in the JPEGDigest for images from some common applications, but it will not calculate it for the general case.

- Phil

[ame]

Hi Phil,

Thanks for reply.
Supposing that most of the images are saved from Photoshop do you have a CLI example about how to extract this info?

Stefano

[Phil Harvey]

Hi Stephano,

It's as simple as this:

exiftool -jpegdigest image.jpg

You might want to read up about it in the Extra Tags documentation.

- Phil