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Failing to import JPEGs

Permanently deleted user

Imported a Lightroom catalogue, seem to work! But... a warning some files were not imported. All the files were JPEGs. But, other JPEGs were imported. So, some JPEGs imported OK, others not. I tried to import the missed files directly but C1 won't.

The only thing I can think of is that the JPEGs which failed to import are from a film scanner. But... other TIFF files from the same film scanner have been imported.

Is there something in the EXIF data which Capture One doesn't like? But only in JPEGs?

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Comments

8 comments

Date Votes
  • SFA
    • Edited

    The Release notes and some other reference documents provide information about files types and configurations that are not supported.

    Any files that are greyscale rather than RGB for example. Or certain small dimension files (in pixel measurements) and some large dimension constraints.

    Maybe one or more of these could explain some or all of your non-imports?

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  • Permanently deleted user

    Thanks SFA. I think I knew about greyscale but it didn't occur to me - even though they're all B&W scans!

    So, yes, the JPEGs are greyscale but the other TIFF scans are RGB.

    I guess I could change the mode to RGB using a Photoshop batch if I want them in Capture One.

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  • Permanently deleted user
    • Edited

    I guess I could change the mode to RGB using a Photoshop batch if I want them in Capture One.

    • That didn't work. Converted a couple of folders full of greyscale to RGB but Capture One still won't see them.
    • Any other ideas!
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  • Eric Valk

    If I rember correctly CaptureOne cannot handle image files without an "Alpha" channel, and this is what prevents certain B&W images from being imported. There are various ways of adding an Alpha channel to B&W images, googling for "Add Alpha Channel to B&W images" results in a considerable number of hits. Apparently there is a Photoshop method, a Gimp method and some others.

    Apparently Alpha channels are used for creating layers, so just adding a layer to the image in some tool might just do the trick.

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  • Permanently deleted user
    • Edited

    Capture One handles RGB files that are at least 512x512 pixels.   No alpha channel needed.

    In an earlier thread from several years ago on converting grayscale images to RGB images the Mac program sips was recommended.  It does require use of the command line.  The command to convert a grayscale file to RGB is

    sips -M /System/Library/ColorSync/Profiles/AdobeRGB1998.icc relative "filename.jpg"

    where filename is the name of the file to convert.  that should be on one line without any hyphens in the word "relative". I don't remember why AdobeRGB was the selected color profile.  That has always worked for me.

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  • Permanently deleted user
    • Edited

    My JPEGs are RGB and around 1300 x 1900 pixels. They were greyscale, I have converted them to RGB using Photoshop. They will not import into Capture One.

    Using Lightroom, I have exported them as TIFFs and saved them on the same folder. Capture One has no problem importing these.

    The JPEGs are 8bit, I saved one as 16bit, still no difference.

    I've changed the colour from sRGB to Adobe (1998), no difference.

    It must be something obvious! I would rather import the JPEGs than convert them to TIFFs.

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  • Permanently deleted user

    "It must be something obvious!"

    It was! 

    View -> Global Filters -> Always Hide JPEG Files

    I don't suppose its possible to have that control somewhere more obvious...

    Fixed now, thanks for your help.

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  • Eric Valk

    I've done that one too. Several times.  :)

    Unfortunately there is no indication on the user interface that a global is set.

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