comp.lang.idl-pvwave archive - RDF feed
type: channel
description: Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
items: Displaying 3 color channels simultaneously

Displaying 3 color channels simultaneously
type: item
description: Hi, I have some code that displays a color image (say a true color Landsat scene) and redraws some subscene within the image every few seconds. The new color subscene is a product of band manipulation. The problem is that when I redraw the subscene, the RGB channels are drawn independently (using "tv, redimage, channel=1", etc.), which kind of kills the continuity of the animation and makes it hard to compare with the background and the previous subscene. Is there a way to draw all three color components to the screen simultaneously? I tried to draw the images in the z-buffer in the hope of using the resulting tvrd image, but the tv command with the channel keyword gives me the error: "% TV: Z depth buffer contains words." Any help would be greatly appreciated, thanks! Chris -- _______________________________________ Chris Jengo - Senior Imaging Scientist Earth Satellite Corp. - Rockville, MD cjengo@earthsat.com Sent via Deja.com http://www.deja.com/ Share what you know. Learn what you don't.
creator: cjengo
date: 1999-08-31T07:00:00-00:00