Star Rating from RAW

bear_sk · Post by **bear_sk** » Wed May 09, 2012 9:43 am

Some Cameras (Canon 60D, 600D, 5D mark III, 1D X) allow rating of files with stars (0-5 stars). After opening folder with these files, I don't see rating of files in Aftershot.

kaymann · Post by **kaymann** » Wed May 09, 2012 4:51 pm

Are you importing and using a catalog or the File System tab?

bear_sk · Post by **bear_sk** » Thu May 10, 2012 5:48 am

I'm using file system.

afx · Post by **afx** » Thu May 10, 2012 8:17 am

bear_sk wrote:I'm using file system.

Which is irrelevant actually.

This is the first time I hear about ratings in Canon raw files (AS does support the IPTC stuff in the new Nikons, so getting ratings in from the Canons should be not a big deal).
Can you make one available for examination?

cheers
afx

Tadjio · Post by **Tadjio** » Thu May 10, 2012 11:05 am

afx wrote:This is the first time I hear about ratings in Canon raw files (AS does support the IPTC stuff in the new Nikons, so getting ratings in from the Canons should be not a big deal).
Can you make one available for examination?
cheers
afx

I use Star Ratings for Canon Raw Files but they are held in the .CR2 file itslef and are only visible in Canon Software such as Digital Photo Professional (DPP) and ZoomBrowser (ZB). They are not visible in Windows Explorer, ASP or PSP.

Each .CR2 file is large (25Mb) and I don't have a quick and easy way to make one available but I could give it some thought.

claudermilk · Post by **claudermilk** » Thu May 10, 2012 3:43 pm

That sounds like Canon added it to their makernotes rather than using the standard IPTC or XMP tags. Sigh.

Tadjio · Post by **Tadjio** » Thu May 10, 2012 4:28 pm

claudermilk wrote:That sounds like Canon added it to their makernotes rather than using the standard IPTC or XMP tags. Sigh.

I have looked in DPP, ZB, ASP, PSP, Exifer (which won't open .CR2) and Windows Explorer and I cannot find the Canon RAW Star Rating anywhere including in the Makernotes.

bear_sk · Post by **bear_sk** » Fri May 11, 2012 2:47 pm

Sample files:

5D3_1912-0 stars
5D3_2006-1 star
5D3_1656-2 stars
5D3_1736-3 stars
5D3_1783-4 stars
5D3_1820-5 stars

http://temp.maxo.sk/corel_canon_cr2_star_ratings.zip

bear_sk · Post by **bear_sk** » Fri May 11, 2012 2:58 pm

Linux exiftool is able to read this ratings, and assign it to XMP group of tags:
$ exiftool -G -Rating 5D*
======== 5D3_1656.CR2
[XMP] Rating : 2
======== 5D3_1736.CR2
[XMP] Rating : 3
======== 5D3_1783.CR2
[XMP] Rating : 4
======== 5D3_1820.CR2
[XMP] Rating : 5
======== 5D3_1912.CR2
[XMP] Rating : 0
======== 5D3_2006.CR2
[XMP] Rating : 1

Tadjio · Post by **Tadjio** » Fri May 11, 2012 3:05 pm

That looks promising. So ASP should be able to see the same.

claudermilk · Post by **claudermilk** » Fri May 11, 2012 3:27 pm

Looks like Exiftool found it in XMP--so ASP should see it. On my system it's never had a problem with XMP-based ratings. Exiftool is the go-to metadata reader (there is ExifToolGUI for a friendlier inteface on Windows).

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