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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2
votes
3answers
97 views

Adding excel table to QGIS print composer?

Can anyone suggest some ideas to add a excel table to the print composer which will then be exported as a A3 png while retaining resolution. Attempted pasting in word as an enhanced meta file then ...
1
vote
1answer
527 views

how to show some markers on a static image using openlayers 3

I am trying to show some marker on the static image ie. Given a static image of certain size in feet and set of point in feets how mark some image or a marker on the static image using OpenLayers 3. ...
1
vote
1answer
923 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 ...
4
votes
2answers
273 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 ...
1
vote
1answer
852 views

OpenLayers 3 how to keep original image extent

I'm new at ol3, I'm trying to display my GIS view by updating my ol2 code. I created the projection and I can display my static image but I'm obliged to use local extent [0, 0, 1024, 968] instead of ...
0
votes
0answers
24 views

How to store aerial photo or image with geographic data?

I started working with geographic aerial photos and I'm wondering if there any widely spread image or data format that carry metadata like lat-long for each image vertices or something like this. It ...
0
votes
1answer
228 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: http://trac.osgeo.org/openlayers/wiki/...
2
votes
1answer
20 views

Load WMS into Map (Geotools)

At the Moment I try to load a WMS-Map into a Java Geotools Project. I followed every Step in the Userguide of Geotools. (here the Link: http://docs.geotools.org/latest/userguide/extension/wms/wms.html#...
0
votes
1answer
28 views

Converting png map to polygons with colors and value using ArcGIS for Desktop?

I need to use this map (png file) in which each color is a population density: I've already located it using Georeferencing. Now i need to convert it to shape file with polygons, and narrow down ...
0
votes
0answers
9 views

Creating Map Service composed of multiple raster datasets as independent layers [duplicate]

I have 100 .tiff images of paper maps that have been georeferenced and stored in a file geodatabase. Many of these images overlap and they all have collars that contain information that must be seen ...
1
vote
1answer
179 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 ...
1
vote
0answers
38 views

QGis through python script : no map exported (map will be printed here)

I am very new to GIS in general and even more to QGis. I have a pretty simple task which is to import all shapefiles in one folder, style them and finally export them. I have wrote python code that ...
3
votes
1answer
46 views

QGIS QImage, can't specify a specific path

I'm a newbie in QGIS and I have to write a small python script to automate shapefile loading, applying style and save image. I'm having trouble on this last item. Here is the thing: img.save("...
1
vote
1answer
31 views

Bands disappear after Raster Calculation ArcGIS [duplicate]

I have a tif file containing 36 bands. After I applied raster calculation on the file the bands aggregate into one single band which I don't want because I need them for further calculation. People ...
0
votes
0answers
26 views

Arcmap - add an image to a legend that is not part of layer symbology

I am making a simple map, showing store locations on a background. Each store brand is displayed with an image (a coloured square with a letter e.g. Aldi might be a blue square with the letter "A" ...
9
votes
3answers
2k views

Rendering images in OpenLayers?

My organization has a web application for displaying global and regional climate data and we're considering improvements to it. Our leading idea is to create an OpenLayers-based application to ...
0
votes
0answers
13 views

Single channel Change Detection

I want to write script for Google Earth Engine, which will create bitwise mask of changes. Earlier I made through ScanEx Image Processor and this function is called "Single channel change detection". ...
1
vote
2answers
34 views

Converting an image into a font to label point features

How do you convert an image (ex: company logo) into a font and store it within arcmap so that it can be called upon to label point features with?
1
vote
0answers
23 views

Non-HTML circle text labels on Leaflet map

I need to save image of Leaflet map with polygon, multi-polygons, circles and text below every circle. I have geojson file with circle and polygon coordinates (lat and lng). I managed to get image of ...
0
votes
0answers
10 views

Seeking TLS point cloud and image data about geological surface?

I am learning about the integration of point cloud data acquired by TLS and image data acquired by camera for geology application. I am trying to test some algorithms about this research, but I have ...
2
votes
1answer
34 views

Convert/display grayscale image as RGB

i want to display raster images using a color palette in a leaflet map. The images are tiled (gdal2tiles) from a single .tif to multiple .png files with values from 0 to 100. I add the image using ...
5
votes
4answers
170 views

ArcGIS 10.3: Insert rotated image without background

How can I insert this image into an mxd so the white background doesn't show up? I've tried using photoshop to delete the background and save it as a format that supports transparent backgrounds (gif ...
3
votes
0answers
25 views

Stripes and Distortion in classification result when performing maximum likelihood classification in ArcMap

I have trouble performing a supervised classification in ArcMap 10.3. I created training areas and executed the "interactive supervised classification"-tool, which works totally fine and gives back ...
0
votes
0answers
24 views

How to generate map image using OpenLayers?

I have a solution, which displays maps on a client using OpenLayers API. Now, I received a request to pre-generate the same maps as images on the server - so a standard web client shouldn't be ...
1
vote
2answers
330 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
2answers
56 views

Using SCP image classification to find swimming pools?

i'm currently trying to use the scp image classification plugin to find swimming pools in an aerial image. It is just an RGB image as if it had infra red this'd be a lot easier. Does anyone know how ...
0
votes
0answers
17 views

ArcGIS Online Inserting Image Problem

Within a story map application I am trying to add pictures to the titles. I am adding the picture through HTML code and it works, but for some reason it adds a maximize button to the image. This ...
6
votes
5answers
8k 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?
2
votes
1answer
249 views

dojo/request a png image array buffer using NodeJS, and return the image to the client

I am attempting to request a png image using NodeJS and dojo/request from an ArcGIS Server REST feed, and return the image to the client. I need nodeJS to add a token to the request as a query ...
1
vote
1answer
36 views

HTML ArcGIS Online inserting image issue?

Within a story map application I am trying to add a picture to the title. I am adding the picture through HTML code and it works, but for some reason it adds a maximize button to the image. This ...
1
vote
0answers
35 views

How do I make a ratio image on Erdas Imagine 2014?

I have a stacked image but want to divide bands 4/5/. I have built a model on the model maker but the resulting image is completely black after running the model. When I open the attributes table the ...
0
votes
0answers
27 views

Converting PostGIS data to image [duplicate]

I have an image showing the height information of a map. I have created a table using the 'raster2pgsql' command. This table stores the height values of the map. Now I want to create an image out of ...
0
votes
0answers
19 views

Loading raster image in IGIS?

I am trying to load a raster image into IGIS and have followed the manual. My process_exported a raster image from Global Mapper to Map Tiler, zipped the directories and sent them to Dropbox. ...
0
votes
0answers
12 views

Infowindows not displaying images after HTML editing [duplicate]

Using Carto DB editor and I can't seem to get images to display in the info windows - I'm not talking about images in the header (which work fine), rather I have a row with a link to externally hosted ...
1
vote
0answers
28 views

Individual tree extraction [duplicate]

I would like to extract individual trees in ArcMap 10.1. I have 1.3 meter resolution DSM data created from aerial images. I used Crown Height Model to extract tree heights (as attached file), but I am ...
2
votes
0answers
179 views

Is it possible to query/download satellite images with Python?

I was wondering if there exists a Python library/API for downloading satellite images. Ideally, I would want to enter the latitude and longitude of a bounding box and get a high resolution image ...
1
vote
1answer
27 views

Changing Dataset Property

I 'm working on GDAL C++. But I have some trouble to change GDALDataset property. I have converted "jpg" to "bmp" an image. But I want to do read an image(jpg) to gdaldataset then change dataset ...
3
votes
1answer
116 views

Openlayers 3 - georeferenced ImageStatic

I am trying to display a georeferenced image (in 4326) over a Bing map in OL3. The ImageStatic is the following. var view = new ol.View({ center: [0, 0], zoom: 15, ...
1
vote
0answers
14 views

Orthorectify large set aerial images [duplicate]

I have a large set of images that I want to stitch the together and orthorectify. They have been taken from a small aircraft. The camera of the aircraft is tilted, thereby, although gps data is ...
2
votes
1answer
34 views

Flickr image doesn't show up on Infobox Header

I'm trying to put an image on my infobox header from Flickr and it doesn't work. However, images from Google work -- is there any way to make a Flickr picture work?
0
votes
0answers
14 views

How do you add an image to a point location in ArcGIS 10.3?

I have a set of point locations (groundwater wells) and a graph of groundwater elevation for each location. Is there a way to show the graphs at their respective locations on the map, without having ...
0
votes
0answers
38 views

Assigning latitude and longitude to a particular pixel in satellite image

Pixel of a satellite images can be assigned latitude and longitude, but how this is done as each pixel represent certain area depending on the resolution of image that can be too high to assign ...
3
votes
1answer
56 views

Images in my Click Info box are not appearing in both published CartoDB layers

I'm using the simple web version of CartoDB. I uploaded two datasets, each is a layer and both have the same image URL type (URLS for .png Twitter account images). When I visualise the maps ...
0
votes
0answers
19 views

How to add image to Globe using ArcObjects

I'm using ArcObjects 10.3 .NET. I need to programmatically add .jpg image to Globe. Image is not georeferenced, but I have four points for bounding polygon (not rectangle). What I need to do is ...
0
votes
0answers
116 views

R raster() function failed to read tif file

I wrote a few lines to load data in TIFF to R. The function I used was: library(raster) test <- raster("file name.tif",package="raster") and it worked perfectly last week. However, now I am ...
2
votes
1answer
43 views

Not able to add .jpg image in ArcGIS Online

I am trying to show an image in the customise popup for every feature in ArcGIS Online. For this purpose I am tring to add .jpg format image to ArcGIS Online. I believe this is an acceptable format ...
2
votes
2answers
117 views

Convert PNG to GeoTIFF: Invalid pixelsize in geotransform array in FME

I'm converting PNG file to GeoTIFF. Here's the setup that I use in FME: PNGRaster -> RasterExtractor -> CoordinateSystemSetter -> RasterGeoReferencer -> ...
1
vote
0answers
113 views

OpenLayers add white background to image/png geoserver layer

i created a new wms layer in openlayers. i get the layer from geoserver as image/png and transparent=true. openlayers rotate the raster 30 deg (due to its coordinates - it's fine!) but add white ...
1
vote
2answers
63 views

How can I ensure the image exported from Print Composer is accurate?

I'm using QGIS version 2.12.2, and using print composer to export my map to an image file (I've tried pdf as well). In the print composer it displays fine - just a basemap overlayed with land type ...
3
votes
1answer
298 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 ...