Re: Camera profiles and reference file correction
Re: Camera profiles and reference file correction
- Subject: Re: Camera profiles and reference file correction
- From: Clemens Beisch <email@hidden>
- Date: Mon, 5 Mar 2007 06:17:33 +0100
your idea is erverthing but not stupid.
When you are working with D50 Lab data, all colors in the resulting
images will
have the look of standard D50 light.
When you use spectral data and give the profiling software the
spectral information
of the light where you took your images, than the colors in your
images will look like
they have been by the shooting.
You must have a shot of your ColorChecker in the light of the other
images (or very simular).
And you need an adaptation for the illuminance and contrast.
This can be done by using an appearance model like CIECAM02 and other
techniques.
But I don't know if the current version of the i1 software and
Profilemaker supports such
advanced camera profiling technologies.
Our ColorCharts are the optimal targets of profiling on location
because they have special
marks (fiducial points), that makes possible a fully automaticly
chart detection.
Our software ColorCruiser ist specialized for the computation of high
grade camera profiles.
It not only uses TIFF and JPEG as input, rather you can use directly
the RAW-files of most
common models.
Unfortunately we don't have a dealer in USA for the software. We just
started there with
our ColorChart.
Certainly they are compatible to other profiling packages and you can
get them by
Argraph Corporation
Mr. Mark Roth
111 Asia Place
Carlstadt, NJ 07072 - USA
email@hidden
Maybe we will distribute our software in the USA later this year.
Best regards,
Clemens Beisch
Am 05.03.2007 um 05:23 schrieb edmund ronald:
Hi -
I have been making general-use camera profiles for use with C1. The
profiles are useful. I'm thinking of doing even better.
In order to improve my profiles, I'm thinking of going to the extent
of measuring my Colorchecker SG.
Which brings me to the further idea of measuring the illuminant used
for capturing the target, and employing the spectral values of both
illuminant and target to recalculate the LAB inputs to the profiling
package. Which otherwise would, I guess get the D50 LAB values output
by the spectro software (i1) written into the ref file.
Don't be shy - tell me why my idea is stupid or more trouble than
it's worth.
Edmund
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40calibr8.com
This email sent to email@hidden
***********************************************************
Clemens Beisch - Calibr8 GmbH
Founder & Technical Director
email@hidden
www.calibr8.com
***********************************************************
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden