John McWilliams wrote:
Mark Thomas wrote:
It's worth re-iterating that use of a wider colour space is only
useful if your image has colours outside the 'less wide' spec and
inside the wider one...

And that no colour space has *more* colours - the colours are simply
'remapped' and spread out more so the steps between colours are
greater. So that means if you are manipulating 8-bit images, you may
well be adding new problems (eg posterisation) by using a wider space.

As they say, if you aren't willing to deal with all this, or you are
not quite sure about any aspects, just stay with sRGB.

Actually, Mark T, some printers do have more colors (and colours) than
others, if you say a wider gamut is "more color", which is not
unreasonable.

--
john mcwilliams

Fair comment. I was referring to the commonly held (?) belief that
there are numerically more colours in argb or pprgb, when in fact there
are the same number, just spread out over a different range. So up
until the image is rendered on a device that has those different
colours, and unless you are aware of the 16- v 8-bit issues, it can be
more problematic than useful.