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Re: Color BMP problems [message #11511 is a reply to message #11290]

Tue, 31 March 1998 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Dave Coulter (dwc@nel.newmont.com) writes:

> This may be due to the Microsoft primary ordering which is BGR not RGB. The
> following code works fine on 16bit/24bit displays under Win95:
>
> save_bmp = 'foobar.bmp'
> bmp_image = TVRD(/TRUE)
> ; change from RGB to BGR for .BMP
> chan_temp = bmp_image[0,*,*]
> bmp_image[0,*,*] = bmp_image[2,*,*]
> bmp_image[2,*,*] = chan_temp
> write_bmp, save_bmp, TEMPORARY(bmp_image)
>
> I have found that Truecolor graphics work great under 5.0.2 - I avoid using
> color tables and color indexes as much as possible.

Now HERE is something I didn't know and wouldn't have figured
out in a long, long time!

Thanks, Dave.

Cheers,

David
-----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
E-Mail: davidf@dfanning.com
Phone: 970-221-0438
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Color BMP problems By: James Fulton on Sat, 28 March 1998 00:00
		Re: Color BMP problems By: dwc on Wed, 01 April 1998 00:00
		Re: Color BMP problems By: davidf on Tue, 31 March 1998 00:00

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