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
95 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 ...
2
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0answers
86 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 ...
2
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0answers
416 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 ...
2
votes
0answers
91 views

Flood extent extraction from satellite images

How i can extract the floodwater from satellite images? Is the image classification method accurate for moderate-resolution satellite (Terra/Aqua MODIS)? Or is there a more accurate methods? Thanks.
2
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0answers
93 views

Adding dynamic picture elements to mapbook [closed]

I have a feature class full of traffic signal data including up to 3 pictures of each traffic signal. I want to create a series of data driven pages that include 3 picture/data frames that ...
2
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0answers
710 views

Automated testing for GIS apps

There are several commercial and opensource tools for regression automation. While many of them could be employed to test GIS apps, they fall short, at times, dealing with the unique characteristics ...
1
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2answers
1k views

Merging many rasters using Python

I have a list of many many rasters. I want to have a simple and easy to understand script that takes this and merges it into one big mosaic. I found a similar question but the accepted answer adivises ...
1
vote
1answer
104 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) ...
1
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2answers
351 views

Where to find Icon library for custom GIS software?

I am building a desktop application and currently utilizing a mix of icons for pan, select, zoom, attribute table, etc that have been randomly taken from the internet and modified. The overall look ...
1
vote
1answer
131 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.
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3answers
1k views

How to add png image with esri javascript api MapImageLayer Class?

I have a png image that we host that I need to resize and overlay onto a map at specific gps coordinates. Would this be an image class? I can't seem to find any examples that match up with my needs. I ...
1
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1answer
203 views

How to convert jpgs to RST for IDRISI Selva Image Processing

I would like to create a mosaic data set in IDRSI Selva however, my images are jpg. Is there a way to convert these within IDRISI or otherwise? Thanks.
1
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2answers
32 views

How to add an image to canvas?

I am trying to make a QGIS plugin using Python. Right now I need way add an image to canvas but I don't want that image to be a new layer in qgis project. Is there a way to do it? Now I have: ...
1
vote
1answer
150 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 ...
1
vote
1answer
90 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 ...
1
vote
1answer
83 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. ...
1
vote
2answers
2k views

How to display a image from Postgres database

I have Images in bytea form in PostgreSQL/PostGIS database, i want to display them in a webpage using PHP - PostgreSQL. I got lot of examples and I worked out but not getting output from them... Few ...
1
vote
1answer
1k views

Overlay the big map image with Google Maps API

I put the image on my website with overlay option in Google Maps API. But the map image which is overlayed is too big: 2.85 MB. I can't resize it, so I wonder is there an option to put it somewhere on ...
1
vote
1answer
34 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 ...
1
vote
1answer
27 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?
1
vote
1answer
225 views

Which wavelengths are assigned to which bands in NAIP imagery?

I cannot seem to find a definitive source on which wavelengths are assigned to which bands for 4-band NAIP imagery. Here is an example of the imagery I am working with (2011 4-band NAIP imagery). I ...
1
vote
2answers
302 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 ...
1
vote
1answer
360 views

Why does Exporting Document to JPEG using ArcObjects in Layout View result in bad picture quality?

I want to export the Active View with ArcObjects to JPEG. All Layers in the Document are raster layers (GeoTiff). I use this code which works quite well when in Data View, but when I perform the same ...
1
vote
1answer
102 views

Is there any “proper” way of setting the viewport for QGis Time Manager?

I'm working on video visualisation for some geo data. Everything works fine for me except the viewport that the time manager plugin is using for image frames. It makes image frames size of actual map ...
1
vote
1answer
1k views

How to add images in CartoDB infowindows

Can't seem to get the default site to display images. I've added hrefs to a image column. example; I've dragged the image column to the top of the infowindow sidebar app and it still just displays ...
1
vote
2answers
1k views

Export georeferenced image into Google Earth

I have created a georeferenced image as instructed in this fine tutorial: http://qgis.spatialthoughts.com/2012/02/tutorial-georeferencing-topo-sheets.html Now I would like to get this image into ...
1
vote
2answers
1k views

How to add pictures to OpenLayers map using GeoServer?

I have web map showing land parcel and buildings.I am using GeoServer WMS and OpenLayers. My buildings are showing as point on map.Then I want to add some images to those points to show when ...
1
vote
1answer
2k views

How to display pop up image when click point in open layer web map

I have basic WMS web map showing parcels and points layer which representing buildings of parcel.Then I want to add building images for each and every point. Then when a user clicks on a point image ...
1
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0answers
28 views

Using NDVI values as covariate in survival analyses

I am trying to become more familiar with processing NDVI values in GIS. However, despite its usefulness, it seems to have some limitations. Namely, creating NDVI values across a large scale can be ...
1
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0answers
35 views

Using QGIS in medical Science? [closed]

I was wondering if anybody would be interested in collaborating? My Idea is using QGIS to analyze and quantify Immunofluorescence raster images of cells from human serum.
1
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0answers
29 views

Is it possible to export my FME workbench canvas as a JPEG?

I want to print my FME workbench to a JPG so that the entire canvas is in one image. I have tried printing it to a PDF but it is trying to put it on multiple pages. I have even tried setting the ...
1
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0answers
21 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 ...
1
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0answers
152 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.
1
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0answers
59 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 ...
1
vote
1answer
241 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
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0answers
65 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
30 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 ...
1
vote
1answer
72 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
1answer
54 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 ...
1
vote
2answers
52 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 ...
1
vote
1answer
47 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 ...
1
vote
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
2answers
103 views

Create Image of an area in OSM

I want to create a big image of this area. But with a bigger zoom level. How can I achieve this? Currently I would zoom in, make a screenshot and put those screenshots together with a image editor. ...
1
vote
0answers
170 views

How to retrieve latitude/longitude from Tiff with Geotools

I am new to Geotools and I have to work on project which includes a set of tiff image maps. In that I need to get latitude/longitude for a given point. Ex: When mouse click occurs I want to get the ...
1
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0answers
121 views

Free cartographic texture resources

I've been trying without success to find free textures to use in TileMill. I'm looking for fairly simple, abstract textures, like a dotted pattern (to indicate national parks). Are there any well ...
1
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0answers
74 views

proportion of image layer in OL

I tried create map with single image used OL. But I have a trouble: image in map has a wrong proportions. Img: 1540 x 1481 Img in map: 2858 x1481 My js code: $(function (){ var map = new ...
1
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0answers
277 views

Processing MOD35 cloud mask image?

I have a question about processing MOD35 cloud mask image. I worked reprojection on MOD35 cloud mask image using MODIS Swath Tool. The processed results of MOD35 cloud mask are consist of 6 band ...
1
vote
0answers
175 views

How to correlate Image DN with Spectrometer reflectance?

I am trying to develop a system to measure NDVI from the commercial grade digital camera. I am trying to get two bands NIR and RED from the image and apply it for NDVI measurement using diffent ...
1
vote
0answers
154 views

How CONVERT a lat/lon point TO a x/y point ON a world mercator proj image in JS?

Thx to read and think about my problem! :) I have a map world image like that (mercator proj): http://www.learnnc.org/lp/multimedia/14596 And I have a lat/lon point to place on it in javascript, I ...
0
votes
1answer
38 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 ...