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New project: camera color profile calculation

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Offline Badabing

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Re: New project: camera color profile calculation
« Reply #460 on: 30 / September / 2010, 10:23:28 »
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Adobe just released Camera RAW 6.2 (beta) en Lightroom 3.

Btw anyone know why mounting the SDcard I use in my Ixus 100goes so slow on my cardreader (sweex (i know :(  )  Its faster to mount it in my Nokia N900.
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Offline sironitomas

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Re: New project: camera color profile calculation
« Reply #461 on: 27 / January / 2011, 01:22:45 »
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Offline Herra Tohtori

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Re: New project: camera color profile calculation
« Reply #462 on: 08 / June / 2011, 10:46:20 »
PowerShot SX130 IS


Here's the JPEG. Taken with middle zoom, program mode, -2/3 exposure, no flash, focus to infinity, distance to display about two metres or thereabouts.



Alternate, in case you need to see monitor's white area for white balancing or something like that:



Display info: LG Flatron IPS231, using AdobeRGB1998.icc profile, set to manual colour temperature 50/50/25 for R/G/B respectively (even the "warm" preset is way too bluish). Gamma is set to 2.2 (default). For what it's worth, the display reproduces gamma calibration tests extremely well, but I just wonder about the colour temperature thing and how much it would affect this kind of testing.

Here is the first RAW+JPEG archive of the colour target image: http://www.mediafire.com/?gvb9lnapkdnsbqd
Here is the alternative RAW+JPEG archive of the colour target image: http://www.mediafire.com/?ydllypmowa9yc86

...and here is an archive of RAW+JPEG pairs for testing purposes: http://www.mediafire.com/?6t5e5bd3hble8qu
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Offline ZuloDigital

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Re: New project: camera color profile calculation
« Reply #463 on: 14 / August / 2011, 14:25:56 »
« Last Edit: 15 / August / 2011, 09:38:58 by ZuloDigital »
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Offline ZuloDigital

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Re: New project: camera color profile calculation
« Reply #464 on: 15 / August / 2011, 12:22:11 »
Another matrix calculated with DNG4PS for SX120IS with the colour card you provided and your indications

Camera -> XYZ matrix:
2,119331 0,756036 0,728705
0,328100 2,724260 -0,433730
-0,311140 -1,065713 6,094267
XYZ -> Camera matrix:
0,486743 -0,162369 -0,069757
-0,056231 0,396342 0,034931
0,015017 0,061019 0,166636
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Offline mastodon

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Re: New project: camera color profile calculation
« Reply #465 on: 24 / February / 2012, 04:59:40 »
Could anybody tell in short what these color profile are for?
I made dng-s with the camera and with Dng4ps2. Then I compressed the dng-s with Adobe DNG Converter. Is it possible to modify these dng-s with that camera specific profile?
thank you
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(A 410), SX 200, (SX 280), SX 700
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Offline ArtDen

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Re: New project: camera color profile calculation
« Reply #466 on: 22 / January / 2013, 23:30:58 »
Hi,

Is there any information about new cameras (sensor sizes, color profile etc) not presented in last DNG4PS2? I can add these new cameras into DNG4PS2 and upload new release.
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Offline reyalp

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Re: New project: camera color profile calculation
« Reply #467 on: 22 / January / 2013, 23:46:29 »
Quote from: ArtDen on 22 / January / 2013, 23:30:58
Hi,

Is there any information about new cameras (sensor sizes, color profile etc) not presented in last DNG4PS2? I can add these new cameras into DNG4PS2 and upload new release.
these days, each cameras platform_camera.h has most of this information for in camera dng. The color profiles on some may not be very good.
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Don't forget what the H stands for.
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Offline ArtDen

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Re: New project: camera color profile calculation
« Reply #468 on: 24 / January / 2013, 02:47:41 »
And does anybody still use DNG4PS2? Is there need to include new cameras into DNG4PS2?
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Offline srsa_4c

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Re: New project: camera color profile calculation
« Reply #469 on: 24 / January / 2013, 07:05:13 »
Quote from: ArtDen on 24 / January / 2013, 02:47:41
And does anybody still use DNG4PS2? Is there need to include new cameras into DNG4PS2?
Hi,
just realized you're the author of DNG4PS2. You may want to consider including (and possibly improving) some of the changes I made. Read the disclaimer in the post before  ;).
http://chdk.setepontos.com/index.php?topic=7929.0
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