In a previous post, I has mentioned the existence of a "new product". Well, AccuRaw is now in a closed beta. AccuRaw isn't of course aimed at the X-Pro specifically. AccuRaw is, as its name suggests, intended to deliver technically accurate raw conversion rather than the "Hollywood colors" conversions that most current raw developers deliver by default. But one part of what AccuRaw does to to give very fined grained control over the internal operation of the demosaic process. Specifically, it has sliders that control artifact suppression in luminance and chrominance, and post-demosaic chroma filtration. So you can tune the demosaic to suit your camera, the nature of the subject, etc, rather than have the one-size-fits-all of the mainstream raw developers.
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PhotoRaw was one of the apps mentioned in an article in the New York Time's Personal Tech column entitled "The iPad as a Hand-Held Darkroom". Sadly, they didn't provide a direct link to PhotoRaw, but hey, it's still good.

dcpTool V1.4 is out, with support for the DNG 1.4 specification, and Adobe's "V4" profiles.

When Adobe's V4 DNG Camera Profiles (DCP files) came out, I blogged about the new fields in this post. Well, the good news is that Adobe did eventually document the new fields, and now dcpTool is updated to support them.
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Well, I wasn't expecting to come back to the topic of Fuji, the X-Pro1 and its X-Trans sensor. However, I have been putting a lot of work into the suppression of artifacts when demosaicing. A lot more work than I had intended to, but that's another story. This is for a new product that I hope to release in a few weeks time (several months later than I'd hoped). But I did stumble into a better understanding of the nature of the chroma smearing (or watercolor effect, as it has also become known).
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Just took a look at Fuji X-Pro files using Lightroom 4.3 release candidate.

In short, same chroma smearing problem as the previous versions. Oh dear. Again(!)

Updated: Adobe now have improved support.
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Not, you're not seeing double. There was indeed a previous post titled "Lightroom 4.1 and the Fuji X-Pro - oh dear.....".  I just downloaded the latest version of Lightroom, LR 4.2 in its final release form. The chroma smearing in V4.1 is still there. No doubt the latest release of Camera Raw will be the same.

Looks like fixing that issue didn't make it onto Adobe's priority list.
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I haven't posted for a while - I've been busy coding. Something new in the works that should be available in a month or two. But I do want to quickly publish something I haven't seen documented before, which is how you can do RGB to HSV conversions in a CIFilter. HSV (Hue, Saturation, Value) representations are useful in a number of image manipulations, and CIFilters are part of Apple's image processing in OS X and iOS, and use a reduced version of the OpenGL shader language. In general, HSV conversion in OpenGL shader language are a problem, because of the conditionals, which shader language aren't good at. Some RGB<->HSV conversions in Open GL shader language have been published before, but all the ones I've seen use functions that aren't available in the subset of the shader language that is available in a CIFilter. This implementation takes some ideas about the use of the "step" function from Ian Taylor's "normal" shader language implementation. The CIFilter below adjusts exposure and saturation by converting to HSV, adjusting S and V, and converting back to RGB. You can test this by just pasting it into Quartz Composer. Of course, if all you want to do is to adjust exposure and saturation, there are easier ways than HSV - this is just a demo! Anyway, without more talk:

PhotoRaw 3.6 is now available on the app store. It's a big upgrade; import speeds are about twice as fast. So, for example, on an iPad 2 the image on the first page of the PhotoRaw website loads in 13 seconds, versus 26 seconds for the previous version. For those curious, the image in question was shot in a train yard close to Port Hedland, Australia.

And no, there's no change to image quality.

After my series of blog posts on the Fuji X-Pro1's sensor (here, here, here and here), Sean Reid of Reid Reviews contacted me about the posts. I've known Sean since 2007, when I was developing CornerFix at the same time that he was investigating the IR issues on the Leica M8. At the time, Sean was very helpful, supplying a number of test images for CornerFix.
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Jason Howe has a great new article on his work with a Leica M9 and a 15mm Voigtlander Super Wide Heliar f/4.5 Aspherical. It includes his "Bridge Dynamic" image that has been selected by the Editors as a Leica Fotografie International (LFI) Master Shot, as well as full description of how he uses CornerFix.

It's a great read with stunning images. You can find it here.
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Author of AccuRaw, PhotoRaw, CornerFix, pcdMagic, pcdtojpeg, dcpTool, WinDat Opener and occasional photographer....
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