Re Long, Short, Wide and Narrow Blacks
Re Long, Short, Wide and Narrow Blacks
- Subject: Re Long, Short, Wide and Narrow Blacks
- From: "James Foster" <email@hidden>
- Date: Thu, 22 Nov 2001 10:30:19 -0000
Thanks for the reply Stephen,
If I understand you correctly: -
GCR can be introduced at any CMY level to replace the level of Grey that CMY
would normally produce. It is considered Long if the replacement amount
is high ie. From 20-100%. And short if it is only 80-100%. It is used in
neutral and coloured areas (got that bit from Photoshop help) ie when the
are CMY values in that area.
UCR typically is introduced at the upper quarter 75-100% but can be
lengthened to cover, say 50-100% and is only used in Neutral areas.(PS5.5
help again) ie when only only black is used anyway. Side question I
thought neutral was a three colour grey (CMY) any idea what PS5.5 help
meant by coloured areas? Im presuming that they mean one that isnt a
neutral grey. I know this is fairly basic but I would like it confirmed.
I think thats Long and Short covered, but what about Wide and Narrow?
I work in the Inkjet market typically, so if produce posters of a model,
female not train :-) , with a black background wearing a lighter but still
black dress and lots af shadows around her face what kind of UCR or GCR
values would be normal. Would it be better to have a four colour black in
total to get the depth of colour and then use a light GCR (for the face) or
should I use four colour black with UCR to let the shadows round her face be
dealt with by CMY? Or should I use a 1 colour black for the background and
use four colour black for the actual model and dress?
I have many such pictures of all different types. Is there a recommendation
for using GCR when printing more flesh tones, of using UCR when printing
lots of shadow? Or is it just play and find out what looks good?
Yours slightly confused,
James Foster
--
Technical Account Manager
Image Technologies Developments
email@hidden