ChrisR
I'm a well known grump...
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- Name
- Chris
- Edit My Images
- Yes
There's a bit of background here that I have to get through before my request for help. Some of you may remember that, being a contrarian by nature, I'm an ardent fan of Apple's Aperture, and have carried on using it despite the complete lack of development over the past 5 years. However, Apple have now announced that Aperture will not work on the next version of MacOS, 10.15, known I think as Catalina. (A lot of other things will break as well including my scanner, since they won't support any 32-bit code, but that's another story...) I've always thought that, when it got to this point, I'd just carry on using Aperture and sticking with the current version (10.14, Mojave). But there was a problem with my Mac last winter, in the course of which I had rather suddenly to move to Mojave, and something like that could happen again. I've also realised that my Mac is a mid 2014 model, and could potentially fail. If I got a new model, it would very likely be running Catalina. So, I really have to get a move on and work out a plan on where to go from here. I have written a thread on this in the editing software forum (https://www.talkphotography.co.uk/t...-macos-10-15-so-what-next-capture-one.690117/). So, why am I mentioning this here?
Being a contrarian, the software I finally settled on was Capture One Pro. I got a month's trial and did some limited testing, then a 50% discount was ending and I bought it. Now I've been doing some more serious testing, including importing my entire 2019 folder of Pentax film scans into C1Pro from Aperture (supposedly with many of the adjustments intact). The colour scans all went across fine, but almost none of the black and white scans did. I finally sorted out a way to get them across, but then I discovered that almost none of them are editable!
The ones that are editable were frames I scanned as positives in order to do a separate inversion later (a trial that didn't really go anywhere; Vuescan does a pretty good job). It turns out, those were scanned as colour, 24 bits to a pixel. The black and white negatives were scanned as greyscale, 8 bits to a pixel. For some reason, it appears that C1Pro has never been set up to edit greyscale images with 8/16 bits per pixel! (I have a bug report in to test this out, but this is what I've been informed by a member of their forum, and is consistent with my testing).
As far as I can tell, Silverfast 6.6 scanned all my black and white images as 24 bits per pixel, but the trial of SF 8 that I looked at earlier this year scanned in 8 bits per pixel.
Anyway, does anyone know of any tools that will convert an image from greyscale to colour, ie from 8 bits per pixel to 24 bits (or 16 to 48 for the rare 16-bit TIFFs)? And, more particularly, do this in a batch mode for some thousands of images?
Being a contrarian, the software I finally settled on was Capture One Pro. I got a month's trial and did some limited testing, then a 50% discount was ending and I bought it. Now I've been doing some more serious testing, including importing my entire 2019 folder of Pentax film scans into C1Pro from Aperture (supposedly with many of the adjustments intact). The colour scans all went across fine, but almost none of the black and white scans did. I finally sorted out a way to get them across, but then I discovered that almost none of them are editable!
The ones that are editable were frames I scanned as positives in order to do a separate inversion later (a trial that didn't really go anywhere; Vuescan does a pretty good job). It turns out, those were scanned as colour, 24 bits to a pixel. The black and white negatives were scanned as greyscale, 8 bits to a pixel. For some reason, it appears that C1Pro has never been set up to edit greyscale images with 8/16 bits per pixel! (I have a bug report in to test this out, but this is what I've been informed by a member of their forum, and is consistent with my testing).
As far as I can tell, Silverfast 6.6 scanned all my black and white images as 24 bits per pixel, but the trial of SF 8 that I looked at earlier this year scanned in 8 bits per pixel.
Anyway, does anyone know of any tools that will convert an image from greyscale to colour, ie from 8 bits per pixel to 24 bits (or 16 to 48 for the rare 16-bit TIFFs)? And, more particularly, do this in a batch mode for some thousands of images?
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