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RGB image to 8 bit ?? [message #17035]

Thu, 09 September 1999 00:00

Richard Tyc
Messages: 69
Registered: June 1999

Member

I am a little confused with the following issue:

I am trying to animate a sequence of images from a IDLgrWindow. The
window image is drawn into a buffer object and then read later to
retrieve it.

ie.
oImgBuf = sState.oBuf->read()
oImgBuf->getproperty,data=animImage

At this point, the image is a bytarr[3,512,512]

In order to load it into Xinteranimate, it needs to be in
bytarr[512,512] form ?

So, how do you convert a RGB triple image into a single 8-bit image
while retaining
the colors (although lower resolution of color)

Do I have to convert each R,G,B triple into a 24 bit integer and then
bytscl it between 0-255 (then load anappropriate color table) ?

I was doing th following which produce a grey scale output (with color
table 0)

Xinteranimate, Frame = nimg, image=reform(animImage[0,*,*])

Thanks

Rich

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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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