Article View: comp.soft-sys.khoros
Article #1008Trouble displaying color images
From: Jeff Hehn
Date: Mon, 23 Nov 1992 17:07
Date: Mon, 23 Nov 1992 17:07
63 lines
2777 bytes
2777 bytes
Hello group,
I am relatively new to khoros and have been writing some code to
get color images from our framegrabber (on a PC) into the viff format, and for the
most part I have been successful. I am able to save viff images in greyscale
and RGB format and display them using khoros on a Sparc II. When
I try to use an IHS (Intensity, Hue, Saturation) model however, it seems to just
display it as a greyscale image. I extracted the three bands and the data seems to
represent the HSI model. Has anyone else had experience with trying to display
images in an IHS model. A vfileinfo of an image I saved in the hsi model reveals:
______________________________________________________
File Name: tapehsi.xv
File Type: khoros image file format
KHOROS identifier: -85
KHOROS version/release: 3.1
Description:
£ÝD£¸n£Àn£ºn£ÂnÆÆ]¢fnЭ>ä~
End Description
File data storage type: BYTE
Number of pixels per band: 256 rows by 256 columns or 65536 pixels
Pixel subrow size: 0
Number of images per file: 1
Number of bands per image pixel: 3
Subimage: YES (coordinates in original File: (0,0) to (255,255)).
File Data Compression: NONE
Pixel size: 0 (x) by 0 (y) meters
Machine dependency: NS32000 or MIPS(DEC 3100)
Color space model: IHS
Data Band Mapping scheme: NONE
The following map fields are not used because the map scheme is set to none
Map storage type: NONE
Map row size: 0
Map col size: 0
Map subrow size: 0
Maps per cycle: 0
Enable the Map: OPTIONAL
Location of Data: IMPLICIT
The following fields are not used because the location type is implicit
Dimension Location: 0D (NONE)
___________________________________________________________
I would certianly appreciate any comments or ideas to help me display
images using a IHS model.
Thanks,
-JLH
__________________________________________________________________
Jeff L. Hehn Dept. of Agricultural Engineering
hehn@ccu.umanitoba.ca University of Manitoba
ph:204-474-6298
"Who's that man with a back-pack shaped like my wife"
- Al Bundy
__________________________________________________________________
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Newsgroups: comp.soft-sys.khoros Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!destroyer!cs.ubc.ca!unixg.ubc.ca!kakwa.ucs.ualberta.ca!access.usask.ca!mizar.cc.umanitoba.ca!ccu!hehn From: hehn@ccu.umanitoba.ca (Jeff Hehn) Subject: Trouble displaying color images Message-ID: <By6I81.58E@ccu.umanitoba.ca> Sender: news@ccu.umanitoba.ca Nntp-Posting-Host: ccu.umanitoba.ca Reply-To: hehn@ccu.umanitoba.ca Organization: The Univeristy of Manitoba. Date: Mon, 23 Nov 1992 17:07:13 GMT Lines: 65