Klarinet Archive - Posting 000781.txt from 2000/02

From: "Mark Charette" <charette@-----.org>
Subj: Re: [kl] Premier Rhapsody File Size
Date: Sun, 20 Feb 2000 10:29:18 -0500

From: "Gil Guerrero" <gil-man@-----.net>
>
> Would it be possible to offer it in one of the other graphic file types?
> I think that .GIF files are good at minimizing line art file size, and
> .JPEGs are good for continuous tones (like photos.) I don't think Acrobat
> will open them directly, but most would be able to get them open with a
> typical web browser.

The compression offered by Acrobat is comparable to that offered by GIF; I
tested the size of the GIF files and they would have been in the
neighborhood of 2-2.5 Mb ea (46 of them) for a net savings of about 0. For
jpegs to be effective you have to set the loss factor up pretty high; for
pictures with lots of colors it's barely noticeable, but for "precision"
text it becomes noticeable very quickly.

Perhaps I'll re-group the pages, but there's not much you can do about size
when a picture is 2460 x 3530. The original, uncompressed TIFF files are 26
Mb each; I had to quantize the pictures down to a reasonable level of gray
shades (16).

It's an interesting problem; the resolution of printing is incredible - 400
dpi x 16 levels is pretty rough.

Mark C.

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