A representation or description of a scene, typically produced by an optical or electronic device, such as a camera or a scanning radiometer.

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3
votes
0answers
23 views

Automate Exporting of Rasters Using Renderer in ArcGIS

It is possible to export rasters in ArcMap by right clicking the layer-> Data-> Export: You can then click 'Use Renderer' check box to ensure the image you export uses the current ...
1
vote
1answer
28 views

How can I create GRID from IMG?

I would like to convert an img to grid in ArcMap 10.2. I tried it in two ways: In Conversion tools with the Raster to other format tool, where I adjusted the GRID format and the output workspace ...
0
votes
0answers
20 views

Pansharping Problems with Landsat8

I downloaded Landsat 8 Data from Earthexplorer and used that Workflow: http://courses.neteler.org/processing-landsat8-data-in-grass-gis-7/ Now I want to pansharp the Landsat 8 Datas. For that I used ...
0
votes
0answers
16 views

Draw Openlayers to Canvas

I need to export the current openlayers view into a canvas to finally save it as a image. My Problem is, that i need a image of the current user view with some interactive elements. I saw this ...
0
votes
0answers
46 views

Scaling Images with OpenLayers

I have the same image (exactly the same dimensions) in Google Maps as in OpenStreetMap, but the scaling of the image in OSM is totally different. The scaling in Google Maps is after my opinion the ...
0
votes
2answers
87 views

Orthophoto Free Download?

I'm looking for Image datas for East Africa. Specifically for Rwanda. Does anyone know if such data are available at all free? My target is to digitize roads and buildings with the help of image ...
2
votes
1answer
43 views

Cache - how to give QGIS more?

Another question... how do you increase Cache size? think QGIS is falling-over as haven't given it enough... image to export 1080 x 800 mm! would like at least 120 dpi or 200 : ) Many thanks, Cas
1
vote
0answers
19 views

Raster Vector stack

I want clipped image of NDVI for a particular area. I did raster calculation for getting the image with NDVI values. After that I tried extraction function clipper. In this function we have to use two ...
0
votes
0answers
21 views

Exporting Map to a PDF…it all jumps around! [duplicate]

When I try to export my map from the composer into a PDF or image the base map (Google map using open layers) It moves and so isn't inline with the other layers I've put on.... It jumps different ...
3
votes
2answers
189 views

High resolution satellite

Can any one tell me from where I can buy commercial High resolution Satellite images for Biodiversity research ? I need some websites that sells these kind of images ?
1
vote
1answer
52 views

How to Read&Write .tiff images in java using GDAL library

I searched many sites to learn about this but I didn't find anything. I need step by step process for reading .tiff monochromatic image in java using Gdal library.
0
votes
1answer
133 views

Which method is better for display terrain in OpenLayers?

I want to display terrain in OpenLayers. So, I tried to use dem(.img) and convert it to dem(.jpg) on QGIS. But, the effect is very bad. My expected effect is (This picture is captured from google ...
0
votes
1answer
69 views

How to add image(.jpg) to OpenLayers?

This is my website for test: http://www.cv.nctu.edu.tw/shapefile-js-openlayers/ol_simple.html My dem data is (.jpg). var inProj = new OpenLayers.Projection('EPSG:3826'); var outProj = ...
0
votes
2answers
97 views

How to read and write tiff image and locate pixels and bands of images in R

I'm new in R I want to know how to read and write tiff format image in R and how to use R to locate pixels and bands of images My environment is in Windows when I try to read tiff image it shows ...
1
vote
1answer
93 views

Different origin between GDAL/Python and ArcMap of a Modis image

I have a Modis image and i load this image in Python using gdal library from osgeo import gdal, ogr INPUT_raster_1 = "C:\\myimage_1km.tif" ds_1 = gdal.Open(INPUT_raster_1, gdal.GA_ReadOnly) ...
0
votes
0answers
7 views

I have discordant color differences when i place two or more Landsat8 images side-by-side in a mosaic?

Despite My efforts, i still see . For example, one image may be lighter than the other or less saturated, please look to the mosaic.
0
votes
0answers
28 views

.tif image file cropping

following image has black portion on all side which value is [-inf], that what was showing in ENVI. How can I crop this black portion using that [-inf] value?
0
votes
2answers
197 views

Import Aerial Images from Google into QGIS?

QGIS 2.6.1, Windows 7 I am looking to import an image from Google Earth into an existing QGIS project. Is it possible to download geo-referenced images from google maps (or google earth) and import ...
5
votes
4answers
425 views

Is there a way to filter the colors out of an image?

I am using ArcGIS 10.2 to show a facility's size and position in a project area. I was not given any shape files or survey files of the area. I only have a deed (.pdf) with a B&W sketch of what ...
1
vote
0answers
72 views

How to create model maker NDBI indice using Landsat 8?

I'm having trouble making the model for NDBI (custom made in ERDAS 9.2) using Landsat 8 image? As a result of running the model I'm getting a white image.
2
votes
0answers
46 views

Is it possible to get coordinates for point from satellite image? [closed]

Is it possible to get coordination for point from satellite image using any programming language? For example, if I clicked on a specific point on a satellite image hosted on a web application, I ...
5
votes
2answers
88 views

Retrieving heights of buildings using remotely sensed data (except lidar)

How can I get the height values of buildings from a certain sector a city without going into the field to collect data? Is there anyway to do via satellite imagery, SRTM, ASTER GDEM or any DEM for ...
2
votes
3answers
64 views

Turn latlngs into image file?

I have a huge CSV file of WGS84 latitudes and longitudes, and I would like to turn these into a large image file that I can print (with each point being a pixel on the image). What is the best way ...
0
votes
0answers
59 views

Set coordinate origin to the top left corner

I have a BMP-picture and I know that it's top left corner has the EPSG:3068 coordinates 35500,24390. I would like to use gdal_polygonize and than calculate the EPSG:3068 coordinates of the produced ...
0
votes
0answers
10 views

Add Image attribute in QGIS [duplicate]

Anyone knows how to add an image attribute in qgis, so that when I click on the shape file for information it shows me the picture along with the attribute-table?
0
votes
0answers
83 views

Export / Print WFS Layer to JPG or PNG

I am successfully saving WMS Layers as Image Files with the following approach: http://trac.osgeo.org/openlayers/wiki/TileStitchingPrinting Unfortunately, this does not work at all for WFS Layers. I ...
0
votes
1answer
62 views

Saving Map on Server Side as Image File

I am trying to save my openlayers map on the server, following these instructions, the sections Client-side: Tile collection and Server side: PHP: ...
0
votes
0answers
13 views

image size has been increased after i.atcorr

I have compiled i.atcorr and run for different data sets. The problem is, it is writing the output 4 times of input image. I checked for data types, they are fine. I am not able to catch where ...
1
vote
0answers
50 views

How to batch classify a multi-temporal raster image stack?

I am using dense time stacks of remotely sensed imagery to analyse vegetation change in the Arctic from 1984-2010 for one scene. I will be needing to classify each image, likely using the Maximum ...
2
votes
1answer
127 views

Sort colors from light red to dark red

I have the following png image displaying tanker traffic density: The colors are from dark red to light red, dark red means 'lowest density' and light red means 'highest density'. For example, the ...
2
votes
1answer
35 views

Georeferencing an image to a Progressive JPEG

I am using the Georeferencing tool in ArcGIS 10.2 to georeference a normal JPEG image. I want to produce a georeferenced Progressive JPEG image from that image, but there is no JPEG Progressive ...
0
votes
0answers
43 views

Openlayers 3: Add base64 image

In the current application i'm working on, the user selects a feature (polygon) from a vector layer. The feature id is sendt to a service which returns an Base64 encoded image of this polygon and the ...
2
votes
1answer
102 views

Extract all unique values from a RGB raster

I have a .png file in RGB format showing the intensity of ship traffic: For my analysis I need to convert it to a one-band raster with values between 0 and 1 where 0 means lowest density and 1 ...
2
votes
0answers
63 views

ArcGIS for Desktop is rotating attachment pictures from feature service of ArcGIS Online?

I have a web map on my ArcGIS Online account. In that map are features (line polygon points) with a picture attached to each feature. After saving the feature service as a local copy on my desktop ...
0
votes
1answer
69 views

Load single image by map API and draw overlays

I have an image which I want to make it zoomable and dragable in browser, and draw some overlays like lines and markers on it. So I wonder if I can use the map api like Google map or openlayers to ...
1
vote
1answer
118 views

Is it possible to create a scatterplot with icons (svg or png) instead of points

I'm just starting with R and I wanted to know if it's possible to create a scatterplot with custom icons (svg or png) instead of points. I started to import a shapefile, and then I have a set of ...
0
votes
1answer
78 views

Add image to bottom corner of MapBox.js map

I have a MapBox.js map up and running and I would like to add an image to the bottom left corner. I tried adding in this code: <img src="IMAGE URL" height=100 ...
4
votes
4answers
1k views

Free radar (SAR) satellite data

I'm looking for free (non-commercial use) sources of radar (SAR) satellite imagery. Does anyone know of sources?
1
vote
1answer
189 views

How to calculate degrees per pixel in a given image? Or .nth of degree?

I am trying to make very rough estimates of Lat/Long coordinates in some random parking lot images. If I visit any such random parking lot on a Google map, I can click some driving area and Google ...
1
vote
0answers
54 views

Stereo-pair Image Registration

Is there a simple command line or python based way to visually register a pair of overlapping stereo images and clip the non-overlapping areas out? These images do not have spatial information ...
1
vote
0answers
24 views

Imagine 2014 displaying images with large no-data values

I'm starting to use Imagine 2014 after a recent upgrade. The images I'm using have data values in the range of approximately -.02 to 350.0. The no-data values bordering the data has a value of 2 ...
2
votes
1answer
46 views

Cannot save map from composer as image or pdf

I have created a map and made a nice lay-out in the printer composer (in QGIS 2.4), the weird thing is, that if I try to save my map as an image or as a pdf immediately after entering the name in the ...
0
votes
0answers
30 views

Spot 6 ESUN VALUES

I'm using recently Spot 6 and don't know where is the ESUN values for the bands to make the reflectance calibration.
2
votes
1answer
137 views

Spot 6 - Reflectance calibration

I have a Spot-6 image and the metadata contain 9 values of SUN_ELEVATION (BottomRight BottomCenter BottomLeft CenterRight Center CenterLeft TopRight TopCenter TopLeft). I've used before Landsat and ...
3
votes
1answer
382 views

Panchromatic Image association with high spatial resolution

How and Why is a Panchromatic Satellite Image associated with high spatial resolution? I googled and found that it is a single band image, but then why is it called pan-chromatic(All Colors). Does it ...
1
vote
1answer
24 views

GeoTools and image storage / retrieval

Please can someone let me know how I can create a schema (using SimpleFeatureTypeBuilder()), read and write image data? Simple data types (Integer/Float etc) work fine but how do I handle image data?
0
votes
1answer
34 views

Georeference images together

I have taken a number of images from a very large rock overhang that contains ancient paintings. I want to piece the images together to create a single image of the entire rockshelter. Through ARCGIS ...
0
votes
1answer
42 views

arcmap export layer as a image with different scale

In our web application, we load too many layers cause the map loading very slow. I am thinking of export some static layers as images with different scale. There are totally 10 scales in our ...
1
vote
1answer
65 views

Finding coordinates of the image corner

I have a .bmp image with a map. For creating image i used a Ingeo 4.4 and function MakeImage() What i know: Height an Width of bmp image dpi Map Scale Image Center's coordinates in meters. What i ...
0
votes
0answers
73 views

OpenLayers supported image formats

I need to display ImageLayer in OpenLayers. Which image formats are supported in OpenLayers?