The Jam's literary credentials
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The Southern California Linux Expo (SCaLE) 15x is returning to the Pasadena Convention Center on March 2-5, 2017. SCaLE is one of the largest community-organized conferences in North America, with some 3,500 attendees last year.
If you’re attending the conference this year, find me, @paperdigits and lets talk shop or grab a meal!
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Welcome to the second installment of From the Community, a (hopefully) quarterly-ish blog post to highlight a few of the things our community members have been doing!
@arctic has posted some research about how to better simulate grain in our digital images and the ensuing conversation is both fascinating and way above my head! This discussion is thus far raw processor independent and more input and code is welcome!
We’ve somewhat recently welcomed the painters into the fold on the pixls’ forum and @Elle rewarded us all with a tutorial RGB color mixing. She delves into subjects such as mixing color pigments like a traditional painter and how to handle that in the digital darkroom. You can read the whole article here.
There has been a lot of on-going work to bring support for Pentax Pixel Shift files in RawTherapee; the thread has now reached 234 posts and it is inspiring to see the community and developers coming together to bring support for an interesting technology. The feature set has been evolving pretty rapidly and it will be exiting when it makes it to a stable release.
Some preliminary work has begun to bring generic midi controller support to darktable. The funding for the midi controller to spur the development of this feature is a direct result of the members of the forum directly giving to further community causes. Once the darktable developers are finished with the midi controller, it’ll be offered to other developers to use to help implement support!
@Morgan_Hardwood has written a very nice post detailing several methods for dealing with clipped highlights in RawTherapee. These include tone-mapping, highlights and shadows, and using the CIECAM02 mode.
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Happy New Year, and I hope everyone has had a wonderful holiday!
We’ve been busy working on various things ourselves, including migrating RawPedia to a new server as well as building a replacement raw sample database/website to alleviate the problems that rawsamples.ch was having…
Rawsamples.ch is a website with the goal to:
…provide RAW-Files of nearly all available Digitalcameras mainly to software-developers. [sic]
It was created by Jakob Rohrbach and had been running since March 2007, having amassed over 360 raw files in that time from various manufacturers and cameras. Unfortunately, back in 2016 the site was hit with a SQL-injection that ended up corrupting the database for the Joomla install that hosted the site. To compound the pain, there were no database backups… :(
On the good side, the PIXLS.US community has some dangerous folks with idle hands. Our friendly, neighborhood @andabata (Kees Guequierre) had some time off at the end of the year and a desire to build something. You may know @andabata as the fellow responsible for the super-useful dtstyle website, which is chock full of darktable styles to peruse and download (if you haven’t heard of it before – you’re welcome!). He’s also my go-to for macro photography and is responsible for this awesome image used on a slide for the Libre Graphics Meeting:
Luckily, he decided to build a site where contributors could upload sample raw files from their cameras for everyone to use – particularly developers. We downloaded the archive of the raw files kept at rawsamples.ch to include with files that we already had. The biggest difference between the files from rawsamples.ch and raw.pixls.us is the licensing. The existing files, and the preference for any new contributions, are licensed as Creative Commons Zero - Public Domain (as opposed to CC-BY-NC-SA).
After some hacking, with input and guidance from darktable developer Roman Lebedev, the site was finally ready. The repository for it can be found on GitHub: raw.pixls.us repo.
The site is now live at https://raw.pixls.us.
You can look at the submitted files and search/sort through all of them (and download the ones you want).
In addition to browsing the archive, it would be fantastic if you were able to supplement the database by uploading sample images. Many of the files from the rawsamples.ch archive are licensed CC-BY-NC-SA, but we’d rather have the files licensed Creative Commons Zero - Public Domain. CC0 is preferable because if the sample raw files are separated from the database, they can safely be redistributed without attribution. So if you have a camera that is already in the list with the more restrictive license, then please consider uploading a replacement for us!
We are looking for shots that are:
We are not looking for:
Please take a moment and see if you can provide samples to help the developers!
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