John Roshka Photography

It’s been a while since my last post. I’ve been busy with finding a job (still looking) and had a small trip to Serbia.

What I do every day is checking how perfectRAW is developing. There are no major improvements so far, at least for me as a advanced user of PerfectRAW. For people who are getting used to it I would tell that the team is working on a great new interpolation algorithm named Amazed and Egon, who’s working on the interface has done some great job bringing PerfectRAW on a new level.

perfectRAW 0.70 Alpha is ready to be downloaded in tested.

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Here is the post with the highest rating of reading and other posts related to PerfectRAW:

PerfectRAW – My Favourite RAW Converter:

http://johnroshka.wordpress.com/2008/10/21/perfectraw-my-favourite-raw-converter/

PerfectRAW and some noise reduction examples:

http://johnroshka.wordpress.com/2008/11/10/perfectraw-06-and-some-noise-reduction-examples/

PerfectRAW – Solution to high ISO:

http://johnroshka.wordpress.com/2008/12/17/perfectraw-solution-to-high-iso/

PerfectRAW 0.65 is here:

http://johnroshka.wordpress.com/2009/01/04/perfectraw-065-is-here/

PerfectRAW 0.65 Workflow:

http://johnroshka.wordpress.com/2009/01/05/perfectraw-065-workflow/

Here’s a small update to the upgoing PerfectRAW project.

I copied it from PerfectRAW Forum

-Read Further->

Very soon a new version of PerfectRAW will be available with a more easy to use interface. But, until then I’m about to show you my workflow with PefectRAW 0.65.

I chose an image with contrast problems and a lot of branches. In the field I chose a high aperture number (small aperture ring) to eliminate chromatic aberrations.

This is the original RAW file.

Feel free to download it and try it yourself with your RAW converter and compare the results. I tried it with RawTherapee and ACR and it didn’t work for me. I’m not going to post the examples because I’m not a professional at these softwares, but if someone gets a better results using ACR or other software please feel free to send me some links with your comparison.

-The Workflow->

Hello everyone!

I noticed that most of the visits to my blog are related to PerfectRAW, that’s why I decided to write more about this great open source software.

First of all, I want to announce that an update version of PerfectRAW is available.

-PerfectRAW v. 0.65->

I’ve been following the PerfectRAW almost since the beginning and I must say they are very serious about it. A lot of time they spend working on noise reducton features that the software would provide. Combining interpolation algorythms with different techniques of denoising is what will make PerfectRAW a really good solution to problems that high ISO images encounter – noise. The AFD method of interpolaton already provides a really good possibility of solving the noise problem without affecting the texture. But combined further with other applications it may result in a noise free image and good preservness of texture.

Here’s how:

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PefectRAW 0.6 is on and you can download it from here by going to the bottom of the page.

The new implementations of PerfectRAW 0.6:

• AFD interpolation
• Luminance extraction for every interpolation algorithm (for AFD it is extracted inside interpolation, and for the rest after interpolation).
• Raw noise attenuation for high ISO images, based in texture detection using AFD interpolation. This attenuation is only for high ISO images and can be used with any interpolation algorithm, because it is done before interpolation. It depends on two parameters, the first one (from 0 to 100) is the noisy pixels detection, the second one (from 0 to 100 again) is the level of attenuation for those pixels (0 none, 100 full). The idea is to reduce noise without removing texture, so you can get fine grain and less color blotches. Is very easy to reduce the noise of resulting image in Photoshop or whatever noise reduction software you use. If you use it in noise free images it will do almost nothing.
• Small changes in the program GUI (better TAB behavior).

If you want to know and see what is AFD and how it performs at noise reduction among other software: ACR and DxO, check this link:

http://www.ojodigital.com/foro/perfectraw-perfectblend/230949-perfectraw-0-6-alpha-2.html#post2425237

PerfectRAW starts to forms it’s personality and importance by preserving by most useful features of a RAW converter (WB, noise reduction, highlight recovery etc.) and working on improving new techniques of revealing.