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| Subject: | GISList: RE: Tiff- Jpeg ERDAS Conversion |
| Date: |
02/14/2003 12:05:22 AM |
| From: |
Vivek Mapari |
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Hrishikesh:
This problem was our concern once upon a time for some of our projects, we
designed and developed a tool which helps in batch processing the images
using ERDAS, you may contact us for further exploring the solutions,
This tool is not available for commercial use but we can surely exchange the
notes and share knowledge.
Vivek
--------------------------------------------------------------------------
VIVEK MAPARI
Geospatial Solutions
Datamatics Technologies Ltd.
Merchantman House,
Eastern Perimeter Road,
London Heathrow Airport
TW6 2SR
Mobile: +44 (0) 795 195 4670
Tel.: +44 (0) 208 823 9439
Fax: +44 (0) 208 823 9401
-----Original Message-----
From: Hrishikesh [mailto:hrishikesh.prasad@mobiapps.com]
Sent: Friday, February 14, 2003 5:37 AM
To: 'Mohammad A Rajabi': 'Dan McIntyre': gislist@geocomm.com
Subject: RE: GISList: GPS and powerline question
Dear friends,
I need a suggestion for converting shapefiles into image format (GIF or
Jpeg).I am using Erdas for it. I am converting shapefiles into img
format (continous image) and convert it into thematic image for giving
meaningful color to the classes. Like this I am making images for
different themes with different colors. Then I am mosaicking them to
create a single image layer with different themes.
Now the file size is very big so I want to save it as Jpeg.
But I am not able to save the thematic layer in Jpeg direcltly. When I
save the img layer as tiff and want to open in adobe-photoshop or
paintshop then I get an error message "bit depth could not be read"
I think that first I need to convert the thematic layer into continous
layer and then only I will get the bit depth.
Can you suggest me that how to convert the thematic layer into continous
in Erdas.
Is there any other method to convert the shapefile directly into Jpeg
while maintaining the pixel resolution. I am trying to convert the map
of entire USA. Can I do it in single stage or I need to do it part by
part.
The other method is that open the different layers of shapefile in Erdas
viewer and give color. Then save the view as tif which is a continous
layer and this can be converted into jpeg. But the problem I am facing
is that the Pixel resolution is loosing.
Please suggest me a better way of making jpeg file from shape files or
coverages.
Reagrds,
Hrishikesh Prasad
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