A commonly used method of lossy compression for photographic images
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2answers
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I want to georeference jpg map without any digitizing data?
I have only a jpg map but dont have any digital data for georeferencing that jpg.So is there any way for georeferencing my map (like googlemaps)?
8
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6answers
702 views
How do I generate thumbnails images from lots of shapefiles?
A colleague and I recently released an Open Source project called Mapoteca which is a set of Python Scripts that integrates with a GDAL/FWTools installation allowing a full walk-through of directories ...
3
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3answers
2k views
how can i import georeferences photos (jpg , kml, kmz) in QGIS/ ArcGIS?
I´ve got several georeferenced digi-photos as jpg, kml, kmz
How can I import those into my GIS projects(QGIS or ArcGIS) so I can open them as a popup or so?
4
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2answers
141 views
Wavelet vs Discrete compression for imagery
What is the main reasons to choose wavelet (jp2, sid, ecw) instead of discrete (JPEG) compression methods for raster data?
Lets limit this question to aerial imagery and lossy compression.
Why ...
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2answers
1k views
Hyperlink relative paths to files in points layer in QGIS?
I would like to add hyperlinks to each point in a points layer in QGIS 1.7.0 running on Mac OS X 10.6.7, but I have several requirements:
(1) Each hyperlink has to be a relative path to the linked ...
