RE: Dot Simulation
RE: Dot Simulation
- Subject: RE: Dot Simulation
- From: Bret Hesler <email@hidden>
- Date: Thu, 15 Jan 2009 17:24:13 -0500
- Thread-topic: Dot Simulation
It doesn't completely eliminate the chance of moire, but it does greatly
reduce it. The worst we had was a luggage job with extremely high resolution
digital shots of nylon "canvas". It moired at 20um, less so at 10um, but it
did still happen.
I would disagree that stochastic is completely random. As far as I know, it
is still built in tiles like other screening, and those tiles would repeat
to fill a larger area. Also at its lowest level, it is still built on a 2400
dpi grid.
Bret
On 1/15/09 1:15 PM, "email@hidden"
<email@hidden> wrote:
> From: Mike Eddington <email@hidden>
> Subject: RE: Dot Simulation
> To: "'colorsync-users?lists.apple.com' List"
> <email@hidden>
> Message-ID: <email@hidden>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes
>
>> BTW, I was told that stochastic printing completely eliminates any
> possible
> moiré. Can anybody confirm that there is any truth to this?
> I would say that stochastic screening effectively eliminates the
> possibility of moire from a screening stand point...meaning that there
> should be practically no angle conflicts from overlaying separations
> as with traditional AM screening. Stochastic screening also goes a
> long way in reducing moire that is the result of image patterns (ex.
> fabric) conflicting with screening angles, though I wouldn't say that
> this is outright impossible or completely eliminated. Print buyers for
> the garment industry would do well to look into stochastic/non-
> periodic screening, imo.
> Another source of moire, and one I see more than any other since the
> advent of digital photography, is brought on at image capture. For
> example, fabric patterns too closely matched to the camera's ccd
> causing interference. Stochastic screening won't help there. ;)
>
> mike
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