LTPlus import ?

GRASS GRASS user
1

Hi

I'm trying to import a image from our HP ScanJet IIc in to LTPlus.

I can output in a lot of formats, but it looks like RLE (Run Length Encoded)
is the only compatable format. LTPlus reads this file just fine, but
the resulting image is garbage. Why is this? What am I doing wrong?

What formats are you LTPlus(ers) using to import Scan images?

thankyou
bill...
16-JUL-1993 11:39:05

William J. Dailey, GPSR Systems Analyst
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USDA-ARS-NPA
Great Plains Systems Res. TEL: 303-490-8324
P.O. Box E FAX: 303-490-8310
303 South Howes Rm. 227 FTS2000: A03RLGPSR
Fort Collins, CO 80522 INTERNET: dailey@gpsrv1.gpsr.colostate.edu
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2

Hi,

About two weeks ago I had the same problem. I found out that you can
use simple ascii, the following way:
Import your scanfile in grass, using ppm e.g. export the grass
rasterfile with:

r.out.ascii map=yourmap -h | tr -d " " > filename

import into LTPlus in rstr format, bitmask = 1, no of lines per scanline = 1
It is a rather complex way to do this but it works. Beware that you have to
scan in linemode, so there will only be zeros and ones in your scanfile.

Ronalds Wiemer
ARCHIS, Amersfoort, The Netherlands