[argyllcms] cctiff on JPG image
- From: "umberto.guidali@xxxxxxxxxx" <umberto.guidali@xxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Fri, 19 Apr 2013 12:29:40 +0200 (CEST)
Hi to all,
I am working with cctiff tool for fix this issue: I have
some image produced by scanning kodak films on a Agfa d-lab and saved
as a JPG without enbedded ICC; only exif tag "colospace" is set to sRGB
value.
When I view them on a widegamut display I see a lot of
saturated color (especially the red one). I am trayng to enbedding the
standars sRGB (provide with ref in argyll) using -e option and the
result in viewing is fine.
The question is: if I don't specify the -q
values the new jpg image is smoller than the original (in terms of
Kbyte) with the same number of pixels; if I set 100 in -q the new image
is more big then the original. Does the tool provide a "reconversion"
of the pixels using JPG compression algoritm? So, in the new JPG image
I can loss some details because the new JPG is generated using data
exctracetd from original JPG with lossy compression?
many thanks in
advance
Umberto
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