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

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How to modify 2 raster images to have the same resolution?

I have data for 2 rasters images that have different resolutions: z downloaded from trmm An MSAVI2 output image. For calculating the correlation between them, the data has to be in the same ...
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359 views

Issues calculating NDVI from ASTER

I'm having an issue with ASTER data. I have two mosaics; one for 2008 and one for 2012. Both are composed of 4 ASTER scenes and the scenes are all from the same two month period (i.e. no seasonal ...
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409 views

Is there a way to save images with none stretching in ArcGIS

I have some satellite images, when I imported these in ArcGIS and went to properties and then symbology tab, I saw stretch type was set to standard deviation. I want to save these images with no ...
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Link feature to import or activate imagery in ArcGIS .mxd

I'm looking for a way to link features to activate or import imagery to an ArcMap 10.2 .mxd. The scenario: I have thousands of individual aerial photo frames and data about each as photo centers, ...
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31 views

Creating a mosaic with gdalwarp - How to deal with no data and overlap

I want to create a mosaic of satellite imagery in .tiff format. I want to create an actual mosaic, not a vrt, because afterwards I will cut the image in to tiles that make sense for my users. Gdal ...
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33 views

Software for image orientation (aerial triangulation)

I'm trying find a software which can orient an UAV Imagery using GCPs (Ground control points in UTM Coordinates system) and Camera calibration (only camera focal length, p1,p2, k0, k1, k2, k3 and ...
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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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38 views

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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36 views

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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12 views

Open Layer Plugin Images Informations

I'd like to know how to find informations about Open Layer Plugin Images. I need to know the date and resolution of the images. Thank you!
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60 views

How can I add aerial imagery using REST services as a basemap in CartoDB?

I want to add my county's aerial imagery as a basemap in CartoDB, same as I use in OSM's iD editor but it is not loading. I am adding in the XYZ url as this: ...
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Mosaic Dataset would not show raster unless you zoom in further to around 1:2,500 scale?

So when I make a copy the Mosaic Dataset File GeoDatabase to my external hard drive and then copy it to my computer. It would show the checkerboard at the full extent but when you zoom in it would ...
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48 views

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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42 views

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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Empty raster returned after GRASS i.atcorr with Landsat8 data

I've searched at length on previous forums but no solution seems to work for me. I'm trying to run the i.atcorr module on GRASS (version 6.4.3 on a Macbook Pro, Mavericks OSX) with Landsat8 imagery. ...
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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 ...