[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: Selectable chips & boost programming




On Tue, 29 Feb 2000, Marteney, Steven J. wrote:

> I noticed a lot of you guys use JPEG to compress black and white images.
> Not the best choice since JPEG typically eliminates the high spatial
> frequencies necessary to keep the edges sharp.  This produces a lot of
> artifacts and also "smoothes" lines.  I've downloaded some schematics and
> wiring diagrams and they can look pretty crappy because of the compression.
> 
> For these true black and white files it would be better to use TIF, GIF, or
> preferably PCX since run-length encoding methods will keep the true B/W
> nature of the image.  These methods SHOULD also produce smaller files,
> depending on the content.  This, of course, assumes everyone can read those
> formats.  I realize JPEGs are the web standard.
> 
> Just a suggestion.
> Steve

GIF is probably the best as it is also a web standard, since almost
all of the small buttons are gif files.   The artifacts also make
printing the file look really really bad.

			Roger

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org