RawTherapee: the newest open source raw photo editor

Posted Jan 14, 2010 1:42 UTC (Thu) by luya (subscriber, #50741)
In reply to: RawTherapee: the newest open source raw photo editor by freemars
Parent article: RawTherapee: the newest open source raw photo editor

To be precise, CMYK and Pantone case applied for prepress work. Although Gimp does not have that support, there is an extension called separate+ that allow to convert from RGB to CMYK.

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RawTherapee: the newest open source raw photo editor

Posted Jan 14, 2010 4:20 UTC (Thu) by drag (guest, #31333) [Link] (9 responses)

What you really want is the ability to easily view the work in the same sort of color gamuts that your printer will end up supporting.

CYMK is 'ok', but most printers don't really do 'cymk' or at least do it in different ways. Depending on what type of process your using, the type of printer, how much money they are spending on the ink, quality of paper etc etc etc. you end up with a lot of different sorts of combinations of colors.

And you don't want to actually 'work' in CYMK. That would be extremely lossy. You just want to be able to easily to view your work as if it was printed out in the colors that your going to print it out into.

And, of course, all that would be rather meaningless without the ability to make sure that the colors your monitor is producing are pretty close to the colors that you think it should be displaying. So some sort of way to calibrate your monitor and your application is needed and then you need some way to transmit that calibration with the image your working on.

So on and so forth.

All of it is amazingly complex and very irritating to deal with.

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As far as 16bit color vs 8bit RGBA the major difference is a sort of 'brittleness'.

I am thinking that it's like clay. 16bit is like soft clay were you can work it and work it and it'll stay looking smooth. 8bit is like dry clay were you can muck around with it only so much before you start to see lots of cracks and other artifacts appearing.

It just makes Gimp that much more harder to use to produce professional results.

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Of course all of this depends on Gegl for Gimp's further improvement. It's a different rendering engine to replace the rapidly obsoleting engine that gives Gimp it's current limitations.

Been in development since 2000. API stable since 2006. Introduced into Gimp's development in 2007 and has been introduced into the application and replacing a piece of Gimp at little bit at a time every since then.

RawTherapee: the newest open source raw photo editor

Posted Jan 15, 2010 16:50 UTC (Fri) by eli (guest, #11265) [Link] (8 responses)

drag: You are consistently using "your" where you intend "you're". "Your" is a possessive pronoun, such as "That is your bicycle." "You're" is a contraction of "You are", such as "You're going to ride your bicycle."

This is a common error on the web, and I think it comes from "your" and "you're" sounding the same, but on a well-edited site such as LWN, such errors stand out more starkly. I hope this is helpful to you.

RawTherapee: the newest open source raw photo editor

Posted Jan 15, 2010 18:28 UTC (Fri) by drag (guest, #31333) [Link] (7 responses)

Yes I know. But unfortunately no matter how much I attempt to keep these
errors from popping up I just lack the ability to care that much. Call it a
personal failing, if you will, but as long as it looks ok I simply am not
going to notice it; either in my own posts or anybody else's.

RawTherapee: the newest open source raw photo editor

Posted Jan 16, 2010 13:59 UTC (Sat) by nix (subscriber, #2304) [Link] (6 responses)

Unfortunately other people notice. What you're saying is you care more
about your convenience than that of everyone else reading your posts.

(Personally I find things like this so intensely distracting that I just
skip your posts rather than battle through them. The often-bizarre layout
doesn't help much either.)

RawTherapee: the newest open source raw photo editor

Posted Jan 16, 2010 22:03 UTC (Sat) by jordanb (guest, #45668) [Link] (1 responses)

I tend to skip drag's posts too -- for all of the above reasons -- and also because there's something like a 40% chance that any one will be a libertarian rant.

I do *really* wish that lwn had an 'edit comment' feature though. For some reason, the preview window manages to cloak mistakes that only become glaringly visible after I submit.

40% if you are lucky

Posted Jan 17, 2010 23:38 UTC (Sun) by man_ls (guest, #15091) [Link]

Plus the sheer amount of text. I positively know that drag has a lot of signal, but even so it is often lost in the noise.

nix and drag are value-add

Posted Jan 18, 2010 16:12 UTC (Mon) by sdalley (subscriber, #18550) [Link] (3 responses)

Well, I for one find both your *and* drag's posts among the most interesting and informative. You both display deep technical experience plus astute and enquiring minds plus a basically decent streak. Such comments have for me become one of the value adds of lwn.

Sure, drag's posts are somewhat discursive (why is that so bad?), and his speling and apostrophe's leave something to be desired (although they have improved).

(I used to be bothered exceedingly by wrong use of "it's", but now I've trained myself not to notice it where I can't do anything about it.)

A bit of tolerance can go a long way ...

It all adds to a pleasant, collegiate, mug-of-good-ale atmosphere ...

nix and drag are value-add

Posted Jan 18, 2010 22:02 UTC (Mon) by nix (subscriber, #2304) [Link]

drag's posts are not bad at all, no. I shouldn't post with a searing
headache: it turns me into a grouch. (And when in that mood, drag's posts
are too long to read, as are all posts longer than about one line. Of
course I would never have the same failing. Oh no. Never.)

Unfortunately I have the proofreader gene, so any tiny typo stands out
like a neon sign :/

nix and drag are value-add

Posted Jan 19, 2010 4:48 UTC (Tue) by eli (guest, #11265) [Link] (1 responses)

My concern with the tolerance approach is that I have found these same errors occurring with greater frequency in my own writing. It appears that what I read affects what I write, and I read a lot of "loose" vs "lose", "it's" vs "its", "there" vs "their" vs "they're" errors on the 'net. So when I find someone contributing valuable insight marred by such errors, I try to politely and gently suggest greater care in avoiding said errors.

However, I did not intend to start a week-long digression on the topic of typos. ;)

nix and drag are value-add

Posted Jan 19, 2010 7:45 UTC (Tue) by hppnq (guest, #14462) [Link]

Never mind the typos! For a non-native English speaker, your use of "this" and "that" is intolerably inconsequent. It's torture. Why can't you say "thit" and "that" like normal people, or "this" and "thas" if you absolutely have to?!

Language is a drag. :-)