Path: utzoo!attcan!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!wuarchive!udel!udccvax1!sun.acs.udel.edu!sjm
From: sjm@sun.acs.udel.edu (Steve Morris)
Newsgroups: comp.sys.amiga
Subject: Re: Color Bleeding in Video Titles
Message-ID: <5088@sun.acs.udel.edu>
Date: 7 Nov 89 14:19:11 GMT
References: <735@orange9.qtp.ufl.edu> <745@tardis.Tymnet.COM> <2096@jato.Jpl.Nasa.Gov>
Reply-To: sjm@sun.acs.udel.edu (Steve Morris)
Distribution: na
Organization: University of Delaware
Lines: 26

In article <2096@jato.Jpl.Nasa.Gov> hammock@mars.UUCP (Randy Hammock) writes:
>>>	PROBLEM #2: I created a variety of title pages, changing font style,
>>>		    the result is okay. BUT, for red letters on a black
>>>		    background, I get SEVERE bleeding of the colors.
>
>As many people have stated, RED and BLUE are hard to reproduce under NTSC
>(Never Twice Same Color).  Something else that must be concidered is the
>saturation or level of the color.  At no time should you allow the any one
>color to exceed 12 on a scale of 0 to 15 when setting the color levels.
[other stuff about colors and levels]

I am not familiar with titler software packages, but the amiga will
generate >Illegal< color signals for NTSC. Some of the packages may
limit the palette selections to the allowed range but I wouldn't count
on it. If you know someone in a video facility who can get you access
to a waveform monitor and vectorscope, see if you can take your machine,
or at least a tape of various color combinations, to check them out.
As others have already said red is a difficult color to work with. In
live production it is avoided in clothing. Unfortunately it seems that
quite a few movies have red titles or credits which don't transfer
to VHS very well. Just try reading them on a rented movie. 
  If you really want to use red, try reducing the saturation, and also
lighten up your black. There is a good chance that your black is also
an illegal black. NTSC black is slightly above a "no video" signal
level.
	-Steven