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

learn more… | top users | synonyms

0
votes
1answer
14 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
50 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
27 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 ...
0
votes
0answers
28 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
35 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
2answers
51 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 ...
1
vote
0answers
20 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 ...
2
votes
1answer
36 views

Extracting NDVI using QGIS from multiple images to Excel?

I created 25 images in QGIS. Each image has different information about the NDVI of the area. How can I extract mean, max, and min information about the NDVI from each image and put it in Excel?
1
vote
1answer
33 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. ...
0
votes
0answers
16 views

how to place markers on the image using openlayer3

In openlayer3 we have a feature where we can use any user defined image as the base map like the sample shown in the link http://openlayers.org/en/v3.6.0/examples/static-image.html i want to place ...
1
vote
2answers
55 views

View image file from hyperlink in Arcmap identify tool result

I have a file path to an image file in an attribute table, eg; C:\GIS\ScannedMaps\Map1.png When I use the identify tool on the feature I can see the file path with the hyperlink lightening symbol ...
0
votes
0answers
26 views

How to add marker to user-defined image in OpenLayers 3

I am trying to add camera marker to the example http://openlayers.org/en/v3.0.0/examples/static-image.html I just have to add markers (camera image) randomly on the map. I have tried adding marker ...
1
vote
1answer
28 views

Google satellite Image_Features

What is the method to close labels and features on satellite images of Google maps? NOTE: I don't want to use classic version of google map or use of history of google map. What i want to remove or ...
2
votes
0answers
85 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
0answers
21 views

parallel row detection from binary image [closed]

I have an image and want to be able to get those lines at the left side where they are clearly parallel and those little horizontal lines like at the right side don't exist between them. I used ...
0
votes
0answers
15 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 ...
4
votes
1answer
79 views

Select feature one by one and save it as image

I have used following code for selecting the features and save it as image. layer = self.iface.activeLayer(); layer.setSelectedFeatures([]) count =layer.featureCount() lstChalta = [] lstFeatures = ...
1
vote
0answers
24 views

Using same ROI/Signature for classifying spatially different rasters?

Using QGIS SCP Plugin, I have classified a raster of a state. Can I use the same ROI/signatures to classify rasters of other states?
1
vote
2answers
48 views

Creating a mosaic from multiple Landsat scenes on Qgis

I wish to produce a large image. As a base use cloud free regions of multiple Landsat images. I wish to keep the bands and be able to work with the generated mosaic just like a "normal" Landsat image. ...
1
vote
1answer
102 views

Is the reflectance required to get the NDVI, for Landsat 8 images?

I'm a beginner in satellite optical imagery. I have a landsat 8 image (11 bands downloaded from http://earthexplorer.usgs.gov/) for which I need to calculate the NDVI (Normalized Difference Vegetation ...
0
votes
0answers
19 views

QGIS Uploading images or files for features

I am using a QGIS 2.12 project and I would like to know if it is possible to upload files and photos for each element in a layer. The files should be stored for example in C:\myproject\files I can't ...
2
votes
1answer
31 views

Landsat 8 images acquisition_date

I need to know the exact date of image acquisition for NDVI purpose, the date on image name is " LC80920852014222LGN00" is in Julian date, but in meta data it says"acquisition_date>2014-08-10" , I ...
0
votes
0answers
11 views

How to add an image to collapsed L.control.layers

i got my layers working with this code: L.control.layers(baseMaps,{'<img src="myimage.png" /> Test': json_TestJSON,},{collapsed:true}).addTo(map); This is what i dont like: the white empty ...
1
vote
1answer
45 views

Problem with low quality tif

I have the problem with low quality raster. Now it looks like this: I would like to change this to looks like this: Im using ArcGIS, ArcScan. After some work with photoshop and reclassify with ...
1
vote
0answers
18 views

Export SQL table with images to Qgis

In MySQL Workbench 6.3 CE I created a table with some columns. One of this columns is of data type 'BLOB' to insert an image. Now i am looking for a way to export this table and import this table ...
0
votes
1answer
65 views

Openlayers 3 how to get if an image loaded ol.source.Image

I'm trying to detect if an image exists or not when I try to load it. layerPrec = new ol.layer.Image({ name: "imgprec", style: 'imgprec', ...
1
vote
1answer
41 views

How to add an image to a point in QGIS?

How is it possible to add an image to a point in Qgis I was thinking about something with html and actions The following example is made by the plugin Qgis2web. But the image wouldn't show. The ...
0
votes
0answers
15 views

Trouble with embedded images

The GIS file I'm working in (ArcMap 10.2) has several points that are labeled. Instead of using text however, the person before me labeled them using something different. Whenever I click on the ...
2
votes
1answer
42 views

How to obtain coordinates from points with similar symbol in an image?

I would like to obtain a table containing all the coordinates of the triangles in the following image. I know it is possible to georeference my map using the georeferencing plugin and then I can ...
1
vote
1answer
72 views

How to overlay unprojected image in openLayers 3

I need to overlay an image that does not move with the map layers. I've considered using the ol.control.Control, as the doc specifically states they can be "informational only," as in my case. All the ...
3
votes
1answer
95 views

Otsu thresholding and classic image processing algorithms on radiometrically calibrated Sentinel-1 SAR images

Is it possible to apply the Otsu thresholding (or any other image processing algorithm dedicated to image digital values in the interval [0, 255]) to a Radiometrically calibrated Sentinel-1 SAR ...
0
votes
1answer
47 views

Raster Image Importation

I am trying to open a raster image file in Arcmap 10.3 . I have the AUX File, a JGW file , 2 XML Document files ,and a RRD file. It imports into Arcmap 9. However, Arcmap 10.3 does not import the ...
0
votes
1answer
29 views

Embedding a leaflet map onto a blog

I've created a leaflet map using maptiler. It's created a leaflet HTML file, which links to PNG images on my desktop and displays the image. How do I embed the map onto a blog such as tumblr?
3
votes
3answers
84 views

Multi Temporal Images

I am new to remote sensing, so I would want to clarify my understanding of the meaning of Multi Temporal Images. As far as I understand, multi temporal images are multiple images of the same scene ...
0
votes
1answer
41 views

Hand-held GPS to which I can upload imagery and shapefiles?

We've been struggling with Garmins. We can upload imagery and data using a phython script to create a KMZ file then drop it onto the GPS. It kind of works (much better on the newest units, barely on ...
0
votes
1answer
29 views

How to display EPSG:32649-WGS 84 image on EPSG:4326 map in ArcMap?

I have a image has EPSG:32649 coordinate system and I wanto display this image on a EPSG:4326 map on arcgis desktop (arcmap) . Any one can help me?
1
vote
0answers
43 views

Which image format is needed to make a spatial profile in Erdas Imagine 2013?

I have a problem with the spatial profile tool in Erdas 2013. When I want to make a profile, appears the message 'Error opening raster layer'. The same problem I have already had before, but after ...
1
vote
1answer
219 views

Why is azimuth resolution worse than range resolution in Sentinel1 (SAR) [duplicate]

Why is the azimuth resolution in Sentinel (SAR sensor) worse than the range resolution? The table in this link gives the resolution for SLC products aquired in the different aquisition modes. In ...
3
votes
2answers
144 views

LiDAR intensity image from multiple flight lines?

I'm working with multiple raw las tiles, and I've used Fusion to create an intensity image, but it shows the flight line overlap (see below). Any idea how can I smooth the image so that the overlap is ...
1
vote
1answer
79 views

How to increase height of image header in Infowindow?

The CartoDB Infowindow default image header width is max 400, with height always set to a default, which looks to be about 250 so the image is really wide. Is there a way to set the image to be more ...
0
votes
0answers
17 views

Using photo for mapping lineations in ArcGIS for Desktop?

I am attempting to map the paths of burrow on an oriented photo in order to generate an xy xy chart to run a lineation analysis. How do I get a photo into ArcGIS, orient it, and trace lines that ...
1
vote
0answers
18 views

SPOT6 image does not display correctly in arcpad

I am using ArcPad Data Manager from Arcmap 10.3 to export SPOT6 image to .apm file for Arcpad, and using it for field work, I exported it as background TIFF, the projection I used is ...
1
vote
2answers
175 views

Use Google Earth for land cover classification accuracy evaluation?

I am doing land cover classification with an hyperspectral image of Santa Barbara, CA. The spatial resolution is 6.4 meters but I couldn't find any high spatial resolution land truth data for ...
2
votes
1answer
208 views

How to export the map in very high resolution

I made a map in QGIS. Now I want to export the resulting image (layers upon layers) for further processing in GDAL. The print composer only lets me export an image up to a fixed size. If I try to ...
2
votes
2answers
1k views

image segmentation of RGB image by K means clustering in python

I want to segment RGB images for land cover using k means clustering in such a fashion that the different regions of the image are marked by different colors and if possible boundaries are created ...
3
votes
1answer
170 views

Put png map image as a background to draw upon

I have an image of a fiber optics network map: I want to turn this map image (without any actual GIS data) into a vector map where each point is defined by lat, long. To do this, I'm trying to ...
1
vote
1answer
124 views

GeoServer create map from image

Can i create a map using plain image(jpg or png) with GeoServer and OpenLayers? Scenario as i see it: I upload image(somehow) to GeoServer and it converts it to a map layer Then i create a simple ...
1
vote
1answer
39 views

Different values after clipping

I have a satellite image from Landsat TM. I want to clip my area so i created a polygon and thru Qgis --> raster clipper I am trying to clip my area of interest. I noticed that the results have ...
1
vote
1answer
275 views

Performing image segmentation in QGIS?

I have been trying to learn to work with QGIS (open-source GIS software) through some tutorials available online for classification of image for land cover. These tutorials used a dataset from Landsat ...
1
vote
1answer
87 views

Clipping a tiff image using another tiff image using python

I am working on a code to clip a raster with another raster. I have a forestcover.tiff image and i want to clip it by using other image clip.tiff which extend lies within it. I dont want to use arcpy ...