Greyscale Conversion to Editable Format

Dave R

• August 09, 2020 16:04
• Edited

Black and White negatives scanned in greyscale are not immediately editable in Capture One.  However if one uses the Edit With function and select settings of, for instance, Format: TIFF 16 bit, ICC Profile: Adobe RGB (1998) the resulting variant is a fully editable RGB file. The only problem is that before it can be worked on the Edit With application has to be shut down.

It is therefore quite obvious that Capture One is quite capable of converting greyscale images to RGB internally without going through this convoluted procedure.  Would it be possible to ad d a convert to RGB menu item in a future update?  It is a lot of work to rescan all our B&W negatives in RGB if we have already scanned them in GreyScale.;-)

Dave

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  Kevin Pinkerton

  • August 09, 2020 18:40

  I may have a clue for this.. I have seen grayscale images that are not editable at all in ON1 PhotoRaw. It turns out that the images were missing the color space, or had some weird colorspace settings. Unfortunately, that is all I remember.
  
  

  Once the color space was changed (via an external program such as Irfanview), the grayscale images were fine.

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  Kevin Pinkerton

  • August 09, 2020 18:47

  One more clue... The user forum for ON1 says that the problem with the grayscale images was resolved by changing the images to sRGB and making sure they were 16.7million colors (24 bit). And Irfanview was used to do batch conversions to get that.
  
  But note that this was for another image editor, not C1, so your mileage may vary.

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  Kevin Pinkerton

  • August 09, 2020 18:51

  Here is the thread on the process used to get Irfanview to do the batch conversion in case you need it...
  
  https://on1help.zendesk.com/hc/en-us/community/posts/360062394691-grayscale-images

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  Lily

  • August 10, 2020 13:50

  Hi Dave,

  Thank you for your post.

  Indeed, Kevin is right that the images without color space can't be edited.

  On Mac, you can assign the color space to the image in the standard Preview application: from the main menu select Tools -> Assign Profile.

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  Dave R

  • August 10, 2020 16:50
  • Edited

  Hi Lily

  Thanks for that information but how do you do it on Windows?  The problem I have is with scanned monochrome negatives that have been scanned in greyscale.  As I mentioned in my original post in Windows version of Capture One I have to use Image/Edit With and select an RGB profile in the settings window.  A second version of the picture is produced that is editable in Capture One but the application pointed at in Edit In opens and has to be shut down before I can do that.  All I want is a way of assigning an RGB profile without a second application opening..

  Dave

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