The OpenEXR utilities are pretty nice to have around, especially exrheader.
Sounds like it might be worth a look for you.
exrheader /path/to/input/image.exr | grep compression
-Nathan
From: Rich Bobo
Sent: Monday, May 21, 2012 11:53 AM
To: Nuke user discussion
Subject: Re: [Nuke-users] How to check zip compression type for EXR images...?
Thanks, Nathan. Looks like more trouble than it's worth. I tried a down and
dirty 'strings <path> | grep compress | more' and came up with two instances of
the word "compression", but no other info. So, I guess I'll just use the "Does
it take lots longer to cache?" testing method! ;^)
Rich
On May 21, 2012, at 2:37 PM, Nathan Rusch wrote:
No, it isn’t.
Depending on the context from which you need to check the compression scheme,
if Python proves too unwieldy, you could also resort to
parsing/pattern-matching the output of the exrheader executable.
-Nathan
From: Rich Bobo
Sent: Monday, May 21, 2012 11:32 AM
To: Nuke user discussion
Subject: Re: [Nuke-users] How to check zip compression type for EXR images...?
I found this reference and it looks like the OpenEXR module would have what I
need, but I'm not sure if it's part of Nuke's Python installation or not...
http://excamera.com/articles/26/doc/openexr.html
Rich
On May 21, 2012, at 2:24 PM, Rich Bobo wrote:
Hi,
Anyone know a quick way to check EXR images to see if they were saved as
16-scanline zips or single-scanline zips? ViewMetaData reveals nothing about
the compression type. I'm sure there's a command line invocation that will show
more - I just can't find it...
Thanks for any help,
Rich
Rich Bobo
Senior VFX Compositor
Mobile: (248) 840-2665
Web: http://richbobo.com/
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