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Re: GIF again..... [message #23161 is a reply to message #23077]

Mon, 08 January 2001 02:13

wmconnolley
Messages: 106
Registered: November 2000

Senior Member

Richard G. French <rfrench@wellesley.edu> wrote:

> JD Smith wrote:
> That imagemagick site looks terrific - thanks for the tip.

> I am happy to discontinue creating gifs, but I have about
> 1000 gifs I've made already that I would like to be able to read!

Well, I had the same problem and produced:

PRO READ_GIF, FILE, IMAGE, R, G, B, MULTIPLE=mult, CLOSE=close

; WMC kludge
if (!version.release eq '5.4') then begin
print,'Version is 5.4 so faking read_gif with png''s'
base=basename(file)
spawn,'convert gif:'+file+' png:/tmp/'+base
image=read_png('/tmp/'+base,r,g,b)
spawn,'rm /tmp/'+base
return
endif
; Now continue on into the standard read_gif as written by IDL...

This uses the "convert" program from ImageMagick. Its rather kludgey
(not even safe for multi-users and will gratuitously fail in 5.5) and
also somewhat slow but works OK for now...

-W.

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[Message index]

		GIF again..... By: Richard French on Fri, 05 January 2001 14:14
		Re: GIF again..... By: wmconnolley on Mon, 08 January 2001 02:13
		Re: GIF again..... By: Jeff Guerber on Fri, 05 January 2001 17:23
		Re: gif again By: Craig Markwardt on Wed, 02 October 2002 17:22
		Re: gif again By: Stein Vidar Hagfors H[1] on Wed, 02 October 2002 09:24

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