--- Start of Idrisi List message Hi, >Does anyone have a tip on how to change the black background color on >24-bit composites from within Idrisi32? It uses up alot of ink >unnecessarily. Will sum. Thanks. Thanks to those who offered suggestions. None of them worked directly, but they got me to think along the right line. The specific problem was as follows. I have a window from a Landsat 7 scene which I have further masked to show only the irregularly-shaped region of interest (background = 0). When I create a 24-bit composite in Idrisi32 (e.g. bands 4,3,2), the background is given a "true color" RGB value of 0,0,0 or black. To change the black background to white, I started by reclassing the original boolean mask background value (0) to 255. I used the overlay module with each band to change the background value to 255. Finally, I created the composite. The background had an RGB value of 255,255,255 or white. This isn't the most efficient process, but it works. Richard A. Rupp Agricultural Research Technologist Remote Sensing & GIS Dept. of Crop & Soil Sciences Washington State University Pullman WA 99164-6420 Ph. 509.335.2381 FAX 509.335.8674 --- End of Idrisi List message IDRISI-L is an unmoderated list. As a service to list users, please post a summary of useful responses to your questions. To post a message to IDRISI-L, send it to [EMAIL PROTECTED] To subscribe to the list, send an email from the address to be subscribed to [EMAIL PROTECTED] with "subscribe" (without quotes) as the first line of the message body. To unsubscribe, do the same, only with "unsubscribe" as the first line of the message body.
