Am 10.02.2013 09:56, schrieb Gnome Nomad:
Hmm, have never had LZW compress a 16-bit TIFF and make it LARGER than
the uncompressed version.
Just tested here with single-layer TIFFs converted from 48-bit RAW files
(6MP image):
8-bit TIFF: 17.2 MB (uncompressed) => 6.1 MB (LZW)
16-bit TIFF: 34.4 MB (uncompressed) => 30.7 MB (LZW)
Interesting. I have this all the time. Could it be photoshop LZW
compression is less good? However, try the following: don't denoise in
the raw conversion step and sharpen the image, then try to save LZW
compressed again. Images compress better if there are less fine details.
--
Erik Krause
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