K10D, WB and color histograms

Jonas B · 04-25-2007, 02:36 AM

The Malykh tool floats around in several different versions. There is the first I heard of, for the DS PEF files, a modified version (by GordonBGood) than can read most DNG files and then the updated PEF analyzer I used for the K10D PEF files.

If you find the output from the PEF analyzer strange (no greens for example) you have the wrong version.

The tools comes with no installer and there should be one file called
malykh-gbg-dng.cmd (in the case of the DNG analyzer) or
malykh-pef.cmd (in the case of the new PEF analyzer)

In the same directory as the command file above there should be two directories, "classes" and "source" (This is a Java util). If you place a K10D PEF file, or several, there along with the cmd file and double click the later you'll get the GIF picture(s). This is in Windows XP.

Jonas B · 04-25-2007, 02:44 AM

Originally posted by Stomie

Hi there Jonas, thanks for this work. ... -snip- ...For an absolute global solution it would be interesting to confirm or fine tune the accuracy of your software findings via a hardware solution like Printfix Pro or (my personal choice) X-Rite

Thank you Stomie, again.
I don't think one should read too much into this little K5000-idea. To me it is just a good way for better exposure control in critical situations, or situations where we have some dominant color. With the DS it happened that I came back home and had a chennel way blown, despite of holding back the exposure. Now I know when I need to take more alternate exposures. Of course, those having spent more time with the K10D have probably allready found their ways with it.

all the best,

Originally posted by walter

Thanks for taking the time to share your findings with us.

Have you thought about setting up a website for these kinds of posts? It would be nice to have this kind of stuff all in one place instead of buried in a forum that only allows searching sporadically.

Thank you Walter. No, I haven't thought about a web site. Or more correct; I looked into it briefly (but thinking of pictures then). Nah, it's not for me. I don't have that much to say.

kindly,

Cideway · 04-25-2007, 07:09 AM

Originally posted by Jonas B

Thank you Cideway,

Lol - I guess one interested out of 100 views is ok. Pretty close to a total waste of bandwidth though...

Well i would have posted a reply on DP, but still banned from over there, but i digress, i haven't had a chance to experiment with your findings yet but i gather that you set the camera to 5000K and get a more accurate idea of the consitance between the channels even under variable lighting conditions, that almost sounds too good to be true, when i get a chance i'll have to try it out.

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04-25-2007, 02:36 AM	#16
Jonas B Inactive Account Join Date: Sep 2006 Location: Göteborg, Sweden Posts: 810 Original Poster	The Malykh tool floats around in several different versions. There is the first I heard of, for the DS PEF files, a modified version (by GordonBGood) than can read most DNG files and then the updated PEF analyzer I used for the K10D PEF files. If you find the output from the PEF analyzer strange (no greens for example) you have the wrong version. The tools comes with no installer and there should be one file called malykh-gbg-dng.cmd (in the case of the DNG analyzer) or malykh-pef.cmd (in the case of the new PEF analyzer) In the same directory as the command file above there should be two directories, "classes" and "source" (This is a Java util). If you place a K10D PEF file, or several, there along with the cmd file and double click the later you'll get the GIF picture(s). This is in Windows XP.

04-25-2007, 02:44 AM	#17
Jonas B Inactive Account Join Date: Sep 2006 Location: Göteborg, Sweden Posts: 810 Original Poster	Originally posted by Stomie Hi there Jonas, thanks for this work. ... -snip- ...For an absolute global solution it would be interesting to confirm or fine tune the accuracy of your software findings via a hardware solution like Printfix Pro or (my personal choice) X-Rite Thank you Stomie, again. I don't think one should read too much into this little K5000-idea. To me it is just a good way for better exposure control in critical situations, or situations where we have some dominant color. With the DS it happened that I came back home and had a chennel way blown, despite of holding back the exposure. Now I know when I need to take more alternate exposures. Of course, those having spent more time with the K10D have probably allready found their ways with it. all the best, Originally posted by walter Thanks for taking the time to share your findings with us. Have you thought about setting up a website for these kinds of posts? It would be nice to have this kind of stuff all in one place instead of buried in a forum that only allows searching sporadically. Thank you Walter. No, I haven't thought about a web site. Or more correct; I looked into it briefly (but thinking of pictures then). Nah, it's not for me. I don't have that much to say. kindly,

04-25-2007, 07:09 AM	#18
Cideway Inactive Account Join Date: Feb 2007 Location: Adelaide, South Australia, Australia Photos: Gallery Posts: 364	Originally posted by Jonas B Thank you Cideway, Lol - I guess one interested out of 100 views is ok. Pretty close to a total waste of bandwidth though... Well i would have posted a reply on DP, but still banned from over there, but i digress, i haven't had a chance to experiment with your findings yet but i gather that you set the camera to 5000K and get a more accurate idea of the consitance between the channels even under variable lighting conditions, that almost sounds too good to be true, when i get a chance i'll have to try it out.