Possible mostly free 32bits photo developing OSX workflow



Things you’ll need:

Raw Photo Processor (OSX only)

Darktable (linux, OSX, win)

XnConvert (linux, OSX, win) 


So let’s start with a SOOC (straight out of camera) jpeg, I shot raw and extracted the embed jpeg below. You can clearly see a kind of darkish-amalgamation-with-uttermost-implausible-future-whatsoever-matter; mr. histogram confers =)


I always get amazed by Ufraw, RPP, darktable, Rawtherapee, LightZone’s, etc. (all free) colour engine (mostly based in Dave Coffin’s dcraw) and how much they manage to extract from the raw, specially side to side with the big boys. For further reading this very interesting Review of Raw Processors by Nine Degrees Below. And also below’s a comparison between RPP and Lightroom. See that RPP got so much image that one can see the lens’ hood, crazy!!


RPP it is not complicated, we could even say it’s fairly simple. After some tweaking and tinkering with its controls, one should get comfortable and satisfied (oh no, you’re sinning big time brother, you cannot be satisfied!!!) with a set of chosen settings. In my case I experimented with 32bit ProPhoto Tif export. BTW I checked the Optimize image for post processing drop down menu, not that disregarding it would ruin your output, but once Andrey Tverdokhleb (developer of RPP) has created that option, might as well use it, wouldn’t you say?


With the tif under my armpit, poor tif, we went into a stroll to chopotop, I mean photoshop. If you want to edit 32bit image there are not sooooo many options out there. There are some drawing/vector programs that can handle it, I tried a couple, there’s also Pixelmator. Darktable is an amazing cataloguer and non-destructive image processing platform – see more about it in this blogost – it can also export 32bit tif and EXR. I really like its set of tools and specially fond of their belziers and the possibility of blending every single setting within (I normally use average one) anyway I’ve used PS for more than 13 years and it’s not that I feel like cheating, it’s just less hassle (see Fincher’s Gone Girl).

So below and just with demonstrative (o demonios tratados en castellano) purposes I applied a couple very simple layers: levels and kodak 5218 – 2353 LUT. When going from 32  to 16 bits one can further tweak the image or make a pause for a nice glass of Douro wine.


Denoised, vigneted, perfumed and completely desaturated, I end up with the pic at the bottom. Still I haven’t decided if and where to crop it, just left some possible marks. That’s how lovely Diana checks her email, on autumn rainy Tuesdays while the men are working inside the house =)

XnConvert is a fantastic batch image processor, easy, yet complete and accurate. Very important also free 😛 I use either good professor  S. Sverdlov’s C3C algorithm or XnConvert (lanczos) to downscale my images, to change colour space and to other daily tasks. Effects and properties are easily stackable and there’s a myriad output formats and options for the geeky users =)


I also used ImageOptim to further compress the jpegs/pngs for the web and SetExifData by Marc Vos, both free. If you’re using any of the before mentioned apps for commercial work, please donate to their developers, chen kiú

Finally seize the opportunity and fill up your vehicle’s gas tank (it might be your last trip, juo jua juahh) • gashô

Diana_B&W copy_rez_cropable

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One Response to Possible mostly free 32bits photo developing OSX workflow

  1. Pingback: Affinity as PS alternative /// Ida or WAFF-3 /// and the end of Panachonic | ✁ ......... spit straight and love the target

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