RE: How to identify the correct ICC profile workflow for digital camera?
RE: How to identify the correct ICC profile workflow for digital camera?
- Subject: RE: How to identify the correct ICC profile workflow for digital camera?
- From: "Broudy, David" <email@hidden>
- Date: Thu, 24 Apr 2003 10:23:20 -0500
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-----Original Message-----
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From: Steven Hwang [mailto:email@hidden]
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Sent: Wednesday, April 23, 2003 8:18 PM
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To: email@hidden
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Subject: How to identify the correct ICC profile workflow for digital
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camera?
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Hi all,
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The following are some questions to understand the correct ICC profile
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workflow for digital camera.
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1. The digital camera will save the RAW file and transfer to
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tiff or jepg files from it's color transfer software and embed sRGB or
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Adobe RGB(1998)
in the case of Nikon the profile in a NEF (raw) file isn't actually in the
file but it is referenced in the EXIF data. the profile is embedded when you
export NEF to TIFF or JPEG.
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2. Or the digital camera can save the tiff or jepg files. And
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goes through the DC chart to create it's ICC profile.
well, you would have to apply the camera profile after you download it from
the camera. I haven't tried this yet. I can't really see a point to it based
on:
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3. Or the digital camera can save the embedded sRGB or Adobe
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RGB(1998) to tiff or jepg files from the digital camera's panel.
yes. in the case of the D1x there is a conversion performed internally
according to Nikon (it took quite an effort to get this information out of
them) but they will not tell me exactly what kind of conversion is
occurring. some sort of remapping based on white point to that of Adobe 98
or sRGB, I'd guess, not very different from what Nikon Capture Editor does
when you export from NEF (which I don't think is simply tagging the exported
file).
this is why I've decided not to profile our D1x cameras as 1) Nikon allows
no means of getting raw (not RAW, but unmolested) color out of their
cameras, 2) the image quality is very good as-is, assuming the photographer
is moderately competent, and 3) tagging and converting hundreds of thousands
of images from camera space to a working space prior to printing would
require a fairly expensive server dedicated to the process, for very little
in return.
--
David Broudy
Jostens R&D
11300 Rupp Drive
Burnsville, MN 55337
952.882.3617
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