Imagery refers to raster based datasets acquired from sensors on satellites or aircraft.

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Multiple Source Imagery Mosaic Overviews and Display

I have multiple ortho imagery sources that I wish to mosaic into one (fairly) seamless dataset. I have mosaicked each year separately and currently have: one panchromatic (made into an 8 bit ...
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Ortho-rectification of Aerial Image

I took an aerial image of our farm using RC quadcopter. How am I going to orthorectify this image? Please can you help me with detailed instructions/methods involving the process.
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Creating custom size images from WMS cache

I am currently working on my own WMS service (using PHP). The service works currently if the requested image is in 256x256px size but currently does not support any other size. My service basically ...
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Unable to get processing extent to match desired raster output

I have a few thousand ortho mosaic tiles that I've resampled to a lower GSD and am trying to cut into larger tiles. I developed a script that has worked perfectly for thousands and thousands of tiles ...
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How to use the Cartographic Composer of GRASS 6.4.3?

Following on from my previous question (which was, again, how to use the Cartographic Composer)... I've got a GIS in GRASS. I need to print various bits of it. Problem is, it needs images on it ...
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Raster vertical pixel offset (ALOS AVNIR)

I am working with ALOS AVNIR-2 level 1a. There is a vertical offset/shift of each and every pixel column. It gives sort of a stripy appearance when zooming in. Does anyone have experience with this ...
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Need help with GeoExpress 9 by LizardTech/ArcGIS Server 10.1

This is a multi-part question and after much reading on different forums I still could use some help/advice. My setup: ArcGIS Desktop 10.1, Dedicated Server for GIS data with SQL Server 2008 R2 and ...
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How to download GeoTIFF files of TRMM product 3B42 (rainfall estimates) [closed]

I want to download GeoTIFF files of TRMM product 3B42. (This is a rainfall estimate derived from multiple sensors of the Tropical Rainfall Measuring Mission satellite.) The NASA/Goddard Precipitation ...
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how to stack landsat 8 layers correctly? [closed]

i downloaded a landsat8 satellite image from USGS, it was separated into 12 layers. So, what i would like to do is to stack some of them. To do that, i am not sure which layer should be excluded from ...