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Re: RGB image to 8 bit ?? [message #17118 is a reply to message #17035]

Fri, 10 September 1999 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Liam Gumley (Liam.Gumley@ssec.wisc.edu) writes:

> That said, I also think a 24-bit capable version of XInteranimate would
> be useful.

You know, as soon as I sent that post yesterday I started worrying
that I may had gotten it wrong. I remember wanting to display
24-bit images in XInteranimate, and I remember looking at the
code, and I remember that whatever I did was very simple, but
I couldn't q-u-i-t-e remember what I actually did. So I went
back this morning and looked at the code. And it turns out
I did *nothing*!

That's right. XInterAnimate is *already* 24-bit image
compliant. [Sorry, RSI. :-(]

Actually, it is the fact that XInterAnimate uses the
Device Copy technique of transferring each image frame
from its pixmaps to the display window that makes it
so. This technique doesn't care *what* is in the window,
it just transfers the "bits", if you like.

So, you use XInterAnimate with 24-bit images, all you have
to do is load them properly:

XInterAnimate, /ShowLoad, Set=[512, 512, 15]
For J=0, 14 DO BEGIN
TV, image24[j], True=1
XInterAnimate, Frame=j, Window=!D.Window
EndFor
XInterAnimate

It is true that you can't use the IMAGE keyword, and that
is a shame, but this may be the preferred solution anyway,
since you don't have to do any COLOR_QUANing at all to use
it.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		RGB image to 8 bit ?? By: Richard Tyc on Thu, 09 September 1999 00:00
		Re: RGB image to 8 bit ?? By: Richard Tyc on Mon, 13 September 1999 00:00
		Re: RGB image to 8 bit ?? By: davidf on Fri, 10 September 1999 00:00
		Re: RGB image By: David Fanning on Fri, 11 January 2002 09:20
		Re: RGB image By: David Fanning on Fri, 11 January 2002 09:18
		Re: RGB image By: Dick Jackson on Fri, 11 January 2002 09:03
		Re: RGB image By: David Fanning on Thu, 10 January 2002 12:27
		Re: RGB image By: Liam E. Gumley on Thu, 10 January 2002 12:18

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