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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1answer
116 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: ...
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0answers
14 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 ...
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0answers
77 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
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1answer
213 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
43 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 ...
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0answers
77 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
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1answer
148 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
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0answers
105 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 ...
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1answer
97 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
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1answer
205 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
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1answer
176 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
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4answers
3k 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
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1answer
312 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 ...
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0answers
76 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
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0answers
32 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
55 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 ...
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0answers
49 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
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1answer
228 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 ...
5
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1answer
1k 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
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1answer
32 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?
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1answer
40 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
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1answer
56 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
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1answer
95 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 ...
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0answers
88 views

OpenLayers supported image formats

I need to display ImageLayer in OpenLayers. Which image formats are supported in OpenLayers?
2
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1answer
108 views

ArcGIS Report with images based on a field

Just a quick question for all the experts out there. I'm currently trying to generate a report through ArcGIS 10.2.2 based on my attribute table in which one of the field is a photo links field. I ...
2
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0answers
122 views

multiple image in OpenLayers

I'm fairly new to OpenLayers so please bear with me. I'm trying to add multiple images to OpenLayers. I have the following (some code is excluded): var images = [image1,image2,image3] // these are ...
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1answer
58 views

Clipping aerial image pairs by their overlapping area

I have a set of aerial images which I am trying to clip by their overlapping areas, for use in a more involved program I am writing. Is there a command line based tool out there with an easy method ...
0
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0answers
75 views

Positioning and tracing polygons over an image

On QGIS 2.0 - I want to add an image (TIFF or whatever) then resize and correctly position it over a satellite image (openlayersplugin). Then, the task is to create a new shape file layer and draw ...
1
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1answer
97 views

image rectification with Mercator projection

I have written an image rectification function which allows a user to select 2 points on an image and 2 points on a map. The function will then rectify the image so it is translated, scaled and ...
0
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1answer
169 views

How to remove sandy dots in an image?

I am processing a LandSAT image for geological purposes. After some processing there are so many sandy dots in the image. To get clear geological formation as a polygon I want to remove small sandy ...
2
votes
1answer
111 views

Georeferencing Image using saved Link Table from another Image?

I had a scanned map that I did did a georeferenced a few weeks ago and saved the link table. Now I have two more scanned map that need to do the same thing. It is the same area and one of them I did ...
0
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0answers
102 views

Save map canvas as image with drawings

Is there any way to save the map canvas as an image, with the drawings on map? I draw a line on map, and saved it as image, but only the map saved(without line). I used the following code.. ...
5
votes
3answers
574 views

Software for opening .img files

I have some cpc precipitation data stored in IMG format.Could anyone suggest a software beside ERDAS imagine or Arcgis which can be freely downloaded?
2
votes
4answers
805 views

Determining which “color” each image band represents?

I have a satellite image that has a few bands in it. But I don't know what colors they are supposed to represent, nor do I know where to look for this information--the file's metadata say nothing ...
0
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1answer
62 views

georeferencing an image from GoogleEarth

What I actually want to do is very simple, however, there seems to be a bug: I have an image from GE which I want to georeference and set as a background layer. I thus set some placemarks on GE, ...
2
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0answers
98 views

Can a DXF File contain raster images (TIFF/JPG)?

I am maintaining a large Program with a graphical editor. Our Program can export DXF and it can show Background Raster Images of various types (TIFF, JPG, BMP etc.). Is it possible to embed these ...
0
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1answer
196 views

Get lat/lon points from image pixels

I need to build an application with the following requirement: shows a map .png picture to user. then, users select several points around the map (I can get the x/y pixels from each point) based on ...
0
votes
1answer
436 views

How to remove black box around georeferenced grayscale image in QGIS?

i'am trying to georeference a grayscale image (*.tif) in QGIS 2.2.0 Valmeria. It is working but QGIS draws a black box around the georeferenced raster image. If i use the option set 0 transparent, not ...
1
vote
2answers
63 views

Adding time stamps to animation slides with OSS tools

I would like to create an animation with time lapse values printed on the PNG file. For this purpose I have created in QGIS a vector layer that stores timestamp and temperature value pairs for various ...
2
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0answers
457 views

How to extract road line pattern from satellite images using Matlab? [closed]

Firstly we applied canny edge detection to the image, then detected lines using houghlines, then we got start and end points of the lines. Then we applied delaunay triangulation and voronoi diagram ...
0
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1answer
352 views

What software programs can run a supervised classification on an image segmented into objects?

I am trying to run a supervised MLC classification on a multispectral remotely sensed image, however, I want the image to be classified using a shapefile of segmented image objects (as opposed to the ...
1
vote
1answer
53 views

Why are Images used as label not rendered correctly by GeoServer?

When I try to render the label (png image) through GeoServer as an image, its quality is getting affected i.e. the image is not rendered sharply. Are there any settings that need to done in ...
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0answers
30 views

Can I tell QGIS to load/show only a part of an image?

can I tell QGIS to load/show only a part of an image without to extract this region as an extra/ new image?
1
vote
1answer
96 views

Katalog for Envi

I am working In Process of Image Cataloging of Satellite Imagery. For That I have found Free extension software in ENVI called "KATALOG" .But I cannot find any useful resources for Downloading it. ...
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vote
2answers
369 views

Permanently attaching Image file to Feature Class in 10.1

I need to forward on a File Geodatabase, and I am using the attachment manager to attach the file images associated with the different features in my Feature class. If I forward on this FGD, will the ...
0
votes
1answer
41 views

How can I upload more than 10 images in a category map?

I did a category map with 30 different categories. For each, I would like to upload an image but the "wizards" permits me to upload only ten images and then one image for "others". Is it possible to ...
3
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0answers
388 views

Convert land-based camera image pixel x,y to ground lat/long or x,y,z

I have a number of cameras at various known locations (x,y,z) and directions that are above ground about 20 feet pointed at different ground locations about 100 feet away from each camera, and whose ...
0
votes
1answer
45 views

What is default compress number for jpg2000 when exporting?

I have a file geodatabase that has 635 GB Imagery I copied from Mosaic Dataset. I am trying to export it to jpg2000 to a new file geodatabase. I am thinking what is the default compress number for ...
0
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1answer
73 views

ArcObjects ExportMapImage modifies image extent

I am trying to extract a map image at a certain range. I am using IMxdServer's ExportMapImage method, documented here. Here is the relevant snippet of code: IMapDocumentPtr ...
6
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3answers
647 views

How to generate image tiles from custom geo data for use with Leaflet

Migrating a webapp from Google Maps API V3 to OSM + Leaflet, which displays custom data that consists of lots of lines and points, on a background map. When this custom data is drawn by Leaflet on ...