Walter Arrighetti <riemann.ch...@gmail.com> added the comment:
DPX and Kodak Cineon are the two professional raster image formats used in
digital cinema/film post-production facilities to professionally store video
frames, usually using RGB, YUV or XYZ colour-spaces with 10,12,16 or 32 bits
per channel. They have two functions:
1. They store complete colorimetry information in order to guarantee
perfect colour reproduction across different media (monitors, projectors,
paper and film stock). In particular they are used when conversions between
original negative film to print film (for theatrical releases) require
colours stored as film density, which is a nonlinear function compared to
linear colour spaces used for video
2. They are to cinema like RAW images are to photography: using such high
color depths it is possible to store even the slightest lightness/colour
differences in order for post-production to better manage color corrections
and VFXs
Thanks for the support: it is my first post here. I'll read the patches
section and send a diff file for the original imghdr.py module.
I apologize for mixed tab/space indents: I checked for them (I use \t's) but
apparently missed some. As far as h and f they are pretty useless names for
me too, but was just adapting to the names in the core imghdr.py module
(which also imports modules within the functions).
----------
Added file: http://bugs.python.org/file14520/unnamed
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue6497>
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DPX and Kodak Cineon are the two professional raster image formats used in
digital cinema/film post-production facilities to professionally store video
frames, usually using RGB, YUV or XYZ colour-spaces with 10,12,16 or 32 bits
per channel. They have two functions:<br>
<ol><li>They store complete colorimetry information in order to guarantee
perfect colour reproduction across different media (monitors, projectors, paper
and film stock). In particular they are used when conversions between original
negative
film to print film (for theatrical releases) require colours stored as
film density, which is a nonlinear function compared to linear colour
spaces used for video</li><li>They are to cinema like RAW images are to
photography: using such high color depths it is possible to store even the
slightest lightness/colour differences in order for post-production to better
manage color corrections and VFXs<br>
</li></ol><br>Thanks for the support: it is my first post here. I'll read
the patches section and send a diff file for the original imghdr.py
module.<br><br>I apologize for mixed tab/space indents: I checked for them (I
use \t's) but apparently missed some. As far as h and f they are pretty
useless names for me too, but was just adapting to the names in the core
imghdr.py module (which also imports modules within the functions).<br>
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