msim20
Level 1 (9 points)
Photos for Mac

Q: how to interpret mismatch in number of photos after migration from aperture

I cleaned up my Aperture library, did a rebuild and stuff, and counted the number of images etc.

In aperture, 40,693 total items (observed by clicking on the Photos in the upper left of the Aperture interface), 1653 videos, and in the trash - 1537 items.

 

After migration to Photos, Photos has 38770 photos, 1656 videos, 2 items (?), and in the trash has 2568 photos and 25 videos).

So photos has 38770+1556= 40,426 photos and videos combined. 2 items - not sure what that is.

And the trash has quite a few more items than Aperture trash?

 

1. Are there any instances of Photos having dropped photos and / or videos when transitioning from (a consolidated, not referenced, and rebuilt) Aperture library?

2. Assuming that has not happened, is there any other possible explanation of this mismatch in the count?

 

Thanks for your help!

Posted on Nov 2, 2015 6:49 AM

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msim20

Q: how to interpret mismatch in number of photos after migration from aperture

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  • by msim20,

    msim20 msim20 Nov 2, 2015 7:19 AM in response to msim20
    Level 1 (9 points)
    Photos for Mac
    Nov 2, 2015 7:19 AM in response to msim20

    Did some searching and found the following Apple link:

    Find your pictures or albums after you migrate a library to Photos - Apple Support

     

    I am sure I had burst pictures, there may have been photostream pictures also.

     

    I still wonder why the number of deleted images is as much higher as it is.

  • by léonie,Helpful

    léonie léonie Nov 2, 2015 7:54 AM in response to msim20
    Level 10 (105,867 points)
    iCloud
    Nov 2, 2015 7:54 AM in response to msim20

    The two items could be sound files that you imported to Aperture.

     

     

    Where did you compare the numbers? In the All Photos album or the Photos view in the moments? The All Photos view will show the hidden photos, the moments not.

     

    IF you imported raw& JPEG  pairs to Aperture, they wil show as stacked as one photo in Photos, even if they were us stacked in Aperture.  apertures rejected photos will be in the hidden album in photos.

  • by msim20,

    msim20 msim20 Nov 2, 2015 7:54 AM in response to léonie
    Level 1 (9 points)
    Photos for Mac
    Nov 2, 2015 7:54 AM in response to léonie

    hey @léonie, thank you for the insights.

     

    I am not at the same location right now. As soon as I am, I will try to investigate if these explain the differences.

    I did compare Photos view in moments (although I do not believe I have have hidden photos - but then may be accident).

    For RAW+jpeg, I exported both originals, and the edited versions, imported all of them into Aperture, and then deleted the raw+jpeg combos before migrating to Photos. Left the RAW+jpeg combos in the Trash - did not empty the trash before migrating.

     

    Will check later in the day and report. Thanks for your help!

  • by msim20,

    msim20 msim20 Nov 2, 2015 12:44 PM in response to léonie
    Level 1 (9 points)
    Photos for Mac
    Nov 2, 2015 12:44 PM in response to léonie

    léonie, as an update:

     

    Items in Aperture:

    • total items regardless of how I check - 40693 (checked on the top left - where there is projects, photos, faces and places). if i tried to
    • using smart albums here is what i found - jpeg + raw + (raw+j = 0) + audio (2) + other (? - wonder what these are) + video = 40,690
    • there was 1 missing / offline file (Same file)
    • and trash had 1537

    Total in Aperture including items in trash: 42227


    Items in Photos:

    • photos 38770 + videos 1656 + 2 audio + trash (2568 + 25). total items (not incl items in trash) = 40,428

    Total items in Photos including trash = 43,021

     

    Items(Aperture)- Items(Photos) = 262.

    Could 39 bursts be counted as 39 items in Photos, and the 262 are the additional photos in bursts? Unable to see how many photos the bursts account for.

     

    Trash(Photos)-Trash(aperture) = 1056

    I did have 391 RAW+Jpeg pairs in Aperture trash. May be they are showing as separate files in Photos trash? Even then the difference appears to be quite high to explain.


    Overall, desire to explain aside, so long as no photos were moved to trash, and no photos were left out, neither of which I believe are likely, I am ok to let it be explained by different counting methods in Aperture and Photos.



  • by msim20,

    msim20 msim20 Nov 3, 2015 12:55 PM in response to léonie
    Level 1 (9 points)
    Photos for Mac
    Nov 3, 2015 12:55 PM in response to léonie

    After more digging:

    I learnt that images behind the bursts are 242 in total.

    So out of the

    • 262 missing items in Photos,
    • perhaps 242 (photos in bursts) - 39 (bursts - which are presumably counted as one item each), i.e. 203 are explained by way burst images are counted

    Does this make sense?

     

    I am still missing 59 or so items from the Aperture claimed number of items. Worth trying to understand or not?

     

    I am holding off on active usage of Photos until I can confirm that nothing was lost...

  • by léonie,

    léonie léonie Nov 3, 2015 1:14 PM in response to msim20
    Level 10 (105,867 points)
    iCloud
    Nov 3, 2015 1:14 PM in response to msim20

    Bursts could explain the discrepancy, also RAW&Jpeg pairs will be countr as one. 

     

    Files in an image format that Photos cannot handle, will appear as items instead of photos.

  • by msim20,

    msim20 msim20 Nov 3, 2015 1:37 PM in response to léonie
    Level 1 (9 points)
    Photos for Mac
    Nov 3, 2015 1:37 PM in response to léonie

    Files supported by Aperture but not by Photos:

    • 13 PSD files I identified in Aperture but those are seen in Photos also.
    • RAW+Jpeg pairs - did not exist in my Aperture file.

     

    Are there files that Aperture can handle and Photos does not?

    I looked up here and could not figure out obvious candidate formats.

    How Photos handles content and metadata from iPhoto and Aperture - Apple Support

     

    Should I just give up on explaining the discrepancy and move on in the belief that nothing meaningful is likely to be lost.

  • by notcloudy,Helpful

    notcloudy notcloudy Nov 4, 2015 9:10 AM in response to msim20
    Level 4 (1,190 points)
    Desktops
    Nov 4, 2015 9:10 AM in response to msim20

    Did you look into the console logs to see if there is an error log on the conversion?

     

    It may not be the file type but the mode -- Iphoto stopped accepting Grey scale in ILIFE09 -- had to be RGB - that sort of thing.

  • by léonie,

    léonie léonie Nov 3, 2015 2:06 PM in response to msim20
    Level 10 (105,867 points)
    iCloud
    Nov 3, 2015 2:06 PM in response to msim20

    I had some files in my Aperture library that Photos did not recognize as photos - large scans - tiffs with more than 16 bits and more than 3 channels, pictures create with a graphics program, some bmp files,

  • by msim20,

    msim20 msim20 Nov 3, 2015 3:04 PM in response to notcloudy
    Level 1 (9 points)
    Photos for Mac
    Nov 3, 2015 3:04 PM in response to notcloudy

    @notcloudy: good idea. i opened the console and searched for Photos entries from the time I initiated the conversion.

     

    Combedthrough. Could not quite understand. There does not appear to be a summary message after the migration.

     

    I found this for one file.

     

    11/2/15 8:30:40.771 AM Photos[15850]: [08:30:40.771] <<< FFR_Common >>> FigFormatReaderCreateForStreamReturningMatchingContainerLabelType: *** Could not create format reader for URL file:///Volumes/500gb-enclosure/Photos%20Library.photoslibrary/Masters/2012/11/ 17/20121117-115824/2011-06-12-IMG_1578.MOV FileType '' MIMETYPE (null) SuggFileName (null) instantiationError = -12893

     

    Any ideas as to what I can search for in the Console Log?

  • by msim20,

    msim20 msim20 Nov 3, 2015 3:06 PM in response to léonie
    Level 1 (9 points)
    Photos for Mac
    Nov 3, 2015 3:06 PM in response to léonie

    @léonie, I did find all the tif files from Aperture in Photos. All of 3 I had.

     

    Still investigating...

  • by notcloudy,

    notcloudy notcloudy Nov 4, 2015 5:46 AM in response to msim20
    Level 4 (1,190 points)
    Desktops
    Nov 4, 2015 5:46 AM in response to msim20

    I copied a photo and changed it to grey scale (black and white) tried to import it to IPHOTO from ILIFE 9 -- the error message appeared during the import - both in group and single import -- and the error message was in both the Console messages and the System.log  

     

    Both logs can be filtered using the string matching to in the window header-  The console messages log wraps - so only one exists  but the system log creates a new one every time it reaches a certain size - so you have to search the one that has the date you did for the conversion. 

    try different filters until you get a match.

     

    The error  I had was shows in the log as: iPhoto[244] <Error>: CGBitmapContextCreate: unsupported parameter combination: 8 integer bits/component; 16 bits/pixel; 1-component color space; kCGImageAlphaPremultipliedFirst; 1568 bytes/row.

     

    You could do a test using a file that will not import into Photos see what the error is and then filter for that error.

  • by msim20,

    msim20 msim20 Nov 4, 2015 9:10 AM in response to notcloudy
    Level 1 (9 points)
    Photos for Mac
    Nov 4, 2015 9:10 AM in response to notcloudy

    I tried to identify the error strings, but could not identify and files that failed to be recognized  by Photos.

     

    To figure the count mismatch, I narrowed the time horizon to one month on both programs and tried to do visual examination.

    Based on that, I think it is a combination of bursts and some duplicate images that were not transferred.

    So I am giving up the investigation now.

     

    Thanks for the help!!

  • by léonie,

    léonie léonie Nov 4, 2015 9:23 AM in response to msim20
    Level 10 (105,867 points)
    iCloud
    Nov 4, 2015 9:23 AM in response to msim20

    Keeps a separate backup copy of the Aperture Library, just in case you should discover later what might be missing.

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