[NBLUG/talk] Re: ImageMagick (sjs)

[Dave Sisley]

On Sat, Aug 07, 2004 at 07:49:02PM -0700, Steve Smith wrote:
> 
> I chose
> .png because it seems more suitable for displaying a text image
> i.e. black/white with anti-alias.   

eek.  You're ahead of me here.  I don't really understand the
differences between the various image formats, although I know some
have certain advantages over others.

 
> What I mean by "offset by" is that when I run identify on
> the file or try to look at it in gimp, ident gives me
> something like "500x700+30+50" and gimp shows the image
> offset in the canvas.  With jpeg's the image looks like
> you would expect: identify gives "500x700+0+0" and the image
> is centered in the canvas in gimp.

Hmmm... It sounds like you're saying the offset is built into the
original? (Weird)

> 
> For jpegs -- which I guess everybody uses -- things look fine.
> 

It didn't occur to me that different formats would yield different
results (& I don't think I believe it).  If I have time, I will try
some stuff with a .ps file and see what IM coughs up.

Just so I get it straight, though:  you want to clip a 500x700 section
out of a postscript file and make it into a .png file (sized
500x700).  Right?

-dave.


-- 
Dave Sisley
dsisley at arczip.com
roth-sisley.net