Maximum detail RAW processing. DCRAW – Fuji X-Pro1 & XE-1 |
Terrance Lam

See on Scoop.itFuji X-Pro1

So after playing with this for weeks, I believe this is probably the maximum that we can get out of the Fuji RAF files until the other developers come up with better understanding of the unique X-Trans CMOS sensor. Now this is still not the most ideal workflow for most people. Pixel Peeping aside, the Fuji X files are fantastic, even in Adobe Lightroom. My goal in this was to get a better understanding of what is going on. I wish I knew how to program, because I’d love to create a simpler way to do this. If there’s anyone out there that is interested in taking what I’ve done and turning into a nice little drag and drop application, I think you’d get a lot of fans.

The Process

  1. Using command line DCRAW: dcraw -a -H 0 -o 4 -q 2 -f -m 15 -g 2.4 12.9 -6 -T
  2. Convert TIFF file to LAB file in Photoshop
  3. Resize image 200% with Bicubic Smoother
  4. Select Lightness Channel under channel panel.
  5. Select Median filter under Noise in Filter. Select 1 pixel
  6. Resize image 50% with Bicubic Sharper (Nearest Neighbour is actually a more subtle effect which I kind of prefer)
  7. Save.

SilkyPix and RPP both process very similar files and although I know for certain that RPP uses DCRAW, SilkyPix I believe is a proprietary RAW engine. What I do speculate is the chroma smearing is a result of interpolation errors. Much of it can be suppressed with chroma noise reduction without loss of image quality. However one of the big nagging issues was this ‚zipper‘ aliasing that was happening. After analyzing the files, it seems specifically the red sub-pixels are causing much of this zipper effect, but also part of the interpolation issues. I was able to get rid of a good portion of the chroma smearing by doing 3×3 multi-pass median filtering through DCRAW…..

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