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black and white TIFFS

payshunz
First time user of Capture One 10.0.2. I've imported ~20,000 photos, most coming with keywords (exported from Aperture). For some reason, all the black and white scanned TIFF images (old family albums) have the 'Read Only' symbol on them. While I don't need to edit them, and I've checked the 'Make new files writeable by everyone' option, I can neither add nor delete keywords to/from them.

These photos imported without a problem; they're there, visible, but read-only. I've tried saving them as pngs or jpegs from within Photoshop and Preview and then re-importing the jpegs but they're still read only. They have the same permissions as all the other image files, and the original files are not locked. Whenever I attempt to add or delete a keyword, I get "The action cannot be applied to any of the selected items".

Odd, a few of these photos (same era, same format, originally saved as TIFF) were in color. These are NOT read only.

Why would Capture One consider these black and white files as Read Only?

Any answers or suggestions would be appreciated.

Tom
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  • HansB
    Make sure your b&w images are RGB. CO treats all grayscale images as 'read only', because it needs the color channels to work.


    Regards,
    Hans
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  • Permanently deleted user
    I had this issue after having imported my Lightroom catalog with some scanned B&W negatives that I scanned at the time with a grayscale profile. I've had to open them in Photoshop and transform into an RGB color space. And it worked then.
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  • payshunz
    [quote="tenmangu81" wrote:
    I had this issue after having imported my Lightroom catalog with some scanned B&W negatives that I scanned at the time with a grayscale profile. I've had to open them in Photoshop and transform into an RGB color space. And it worked then.


    I went ahead and took one into Photoshop and selected Image/Mode/Indexed Color and this worked as long as I then saved the image as a PNG. If I saved it as a TIFF CaptureOne wouldn't see it.

    At any rate I can now change them which in turn allows me to modify their keywords.

    Thanks for the suggestion.

    Tom
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  • Permanently deleted user
    [quote="payshunz" wrote:
    [quote="tenmangu81" wrote:
    I had this issue after having imported my Lightroom catalog with some scanned B&W negatives that I scanned at the time with a grayscale profile. I've had to open them in Photoshop and transform into an RGB color space. And it worked then.


    I went ahead and took one into Photoshop and selected Image/Mode/Indexed Color and this worked as long as I then saved the image as a PNG. If I saved it as a TIFF CaptureOne wouldn't see it.

    At any rate I can now change them which in turn allows me to modify their keywords.

    Thanks for the suggestion.

    Tom


    I think you'd better chose RGB colors, not indexed colors.
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  • Mark Moore
    Yes, as others have said CO can at the moment process colour TIFFs.

    Change the TIFF mode from grayscale to RGB but also set the compression to ZIP. The RGB allows you to edit, while the ZIP compression works fantastically (for once!) and means that there is virtually no file size increase.

    I have used this very successfully with high-resolution monochrome film scans. The scanner software put out grayscale TIFFs with date and time set to 1970, so I used a Photoshop batch script to convert the TIFF format and assign a generic colour profile, and then a shell script to use "exiftool" to patch up the capture date and time.
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