RE: Graphics Quality Question

["Dov Isaacs" <isaacs@xxxxxxxxx>]

(1) Photoshop's interpolation option for EPS sets a flag that results
in smart interpolation done at the PostScript printer AT PRINT TIME or
in Acrobat when displaying the graphic. The Canvas option does the
interpolation immediately at the resolution you specify. That is a
totally different beast and is not the effect you want.

(2) Forget DCS with FrameMaker.

(3) Many prepress houses require CMYK, but it isn't absolutely
necessary. It is their form of color management. Don't get me
started. With color laser printers and display, there is no
good reason to change images to CMYK. PostScript has a builtin
mechanism for this.

(4) Transparency is irrelevant to screen shots as you indicate.

        - Dov

At 2/8/2001 10:46 PM, Stuart Burnfield wrote:
>Hello Dov -
>
>I don't have Photoshop but I do have Canvas for Windows. It has
>two Interpolation options: Bilinear (derive from colour values of adjacent
>pixels) and Nearest Neighbour (same colour as an adjacent
>pixel). Would you happen to know which of these is equivalent to
>the Photoshop setting?
>
>Canvas also has these options when saving as EPS:
>
>   EPSF Type: [ EPS | DCS ]. Would DCS only be used when outputting
>   colour separations from the Frame doc?
>
>   Color Mode [ RGB | Black & White | Grayscale | CMYK ]. Is it
>   correct that CMYK is usually better for print output and RGB
>   is usually better for docs destined to be viewed on screen?
>
>   Transparency Rendering: I assume this doesn't matter for screen
>   shots as transparencies wouldn't normally be used?
>
>   Embed Fonts: yes
>
>Thanks
>---
>Stuart Burnfield
>Gentoo Communications
>mailto:stuartb@tpg.com.au

*

>-----Original Message-----
>From: bounce-framers-28220@lists.frameusers.com On Behalf Of Dov Isaacs
>Sent: Friday, February 09, 2001 2:10 AM
>To: Framers List
>Cc: FrameUsers; Acrobat Talk
>Subject: RE: Graphics Quality Question
>
>The only consistent and way to get screen prints into FrameMaker
>(or any other GDI-type Windows application such as Microsoft Office
>applications) such that resultant print output and PDF viewing and
>printing is of high quality is via the EPS format from Photoshop
>with the "interpolation" option enabled when doing the EPS export.
>(Use the "binary" option; do NOT use the JPEG compression option!!)


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