Questions tagged [image]

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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13 views

fusion of different resolution satellite image?

I have two dataset Worldview (38cm: pansharpened) - R,G,B Planetscope (3m) - R,G,B,NIR But, worldview image has only R,G,B, so I can't figure out spectral response for classification. I think it's ...
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25 views

How to Change Image's Color By Changing Its Pixels' Values Based On Some Bands Computation in Google Earth Engine?

I have this requirement to perform pixel-level computation involving spectral bands of sentinel image. The code in javascript is as follows: var ratio_1 = (B04 - 0.35) / 0.215; var ratio_2 = (B04 - ...
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25 views

How to Convert Number (Type Object) Into Type Number in Google Earth Engine?

I am creating a time-series chart of cloud cover. I calculate the cloud score for image using a custom function and store it as a cloud property. Finally, I try to create a chart as follows: Get the ...
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30 views

Failing to Show Custom Sentinel 2 Image Collection on a Map in Google Earth Engine

I'm creating a custom image collection over a bound region as follows: Get image collection containing images taken by satellite in 7 days var collection_to_covert_to_image = ee.ImageCollection(&...
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31 views

How to Add Vector Overlay to Clipped Image in Google Earth Engine?

I'm creating a clipped composite from MODIS Satellite's NDVI image collection. I need to add a vector overlay representing country boundary to each image in a collection. My current failed attempts: ...
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15 views

Showing images linked with corresponding KMZ in QGIS

I have the master KMZ with the images that are linked to its corresponding placemarks, I can see the images of KMZ in Google Earth, but while loading in QGIS, I can't see the images. So, how can I see ...
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45 views

KNMI MSGCPP geoview to WGS84

I would like to transform KNMI MSGCPP geoview netCDF file to WGS84 netCDF file with gdal_translation and gdalwarp. I got error msg. I shared the geoview netCDF file (140 MB): https://z001.s3....
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No data values collars error - delete values from image

I have a satellite image that has collars outside of the image. When I set no data value as 0 and set this colors as no display it also removes the pixels from the image with 0 - RGB. The image is ...
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22 views

Render imageMosaic of palleted GeoTIFFs via WMS from GeoServer

I'm ultimately attempting to serve an external ImageMosaic of GeoTIFFs via WMS. The individual tiffs are pca hillshades, generated using r.shaded.pca in GRASS 7 GIS, exported via GDAL to UInt16 and ...
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31 views

QGIS: How to add picture linked to feature in a report layout?

I'm trying to make a report in QGIS, in the attribute table of my layer, I have a column named "picture1" filled with the relative path of a picture, that illustrate the feature. In the report, I ...
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65 views

Converting a FeatureCollection to ImageCollection in Goolge Earth Engine?

I created a Feature Collection of Ndvi (mean, min, max) from Image Collection. Now i want to convert FeatureCollection in ImageCollection in order to have a three bands (mean,min,max).How can help me? ...
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53 views

Multiply image collection by a list of numbers (pairwise)

I want to know how to multiply every single image of a collection against its respective coefficient allocated in a list. It means to multiply the image 5 with the element 5, image 6 with element 6, ...
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48 views

Static image layer combined with vector layer in OpenLayers 6

I'm trying to have an image layer combined with a vector layer but when I add projection to View the vectors disappear. Am I doing something wrong? Here is an example of what I'm trying to achieve: ...
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30 views

How do I change this exif data into long and lat?

I've been using ImageMagick in a Linux terminal but I'm not sure how to read the coordinates it's giving me. If you can't see the picture, the data is: Properties: date:create: 2020-05-21T12:33:...
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94 views

OpenLayers React export map and vector layers

For my project I am trying to export the map I have created with all it's Vector layers. I can't seem to get the example I found on the site of OpenLayers to work in React. The export doesn't need to ...
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1answer
33 views

OpenLayers 6: blur effect with ImageStatic

I'm using a static image on my map in a project with Django. The code is inspired to the official example: var imageSourceExtent = [ 12.1986543459999996, 44.9052984770000023, 12....
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23 views

Upload an image into Google Earth Engine

How do I upload an image into GEE? I would like to a) just upload an image with no actual geodata just to display in a panel b) take an image and give it the geodata as well (in QGIS??) and upload ...
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43 views

Collection asset not found

I am using this code BANDS=['B1', 'B2', 'B3','B4', 'B5', 'B6', 'B7'] area = ee.FeatureCollection('ft:1GxT2Q22KIGDjLFY1J11IX8lTAQPIoNyvBsG2fX0') collection = ee.ImageCollection('LANDSAT/LC08/C01/T1_SR'...
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43 views

Put an image file on the map in QGIS without coordinates

Is there any way to put an image file on the map in QGIS 3.12.1 and move it anywhere. For example, there is a map with national parks and I want to add an image (SVG) as a symbol, without coordinates ...
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30 views

Conversion of numpy array to GEE image

My program needs a numpy array for processing, so I convert GEE image into numpy array using this code: # Define an image. img1 = ee.Image( 'LANDSAT/LC08/C01/T1_SR/LC08_038029_20180810') \ .select([...
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2answers
28 views

Google Earth Engine: Reduce every image in a collection

I want to reduce every single image in a collection, but I have not been able to make it. The process is really easy and works with a single image, but I need to do the same for every image in the ...
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16 views

How set default symbol point by a vector image from coordinates in R plot?

I'm just starting geostats in R and I would like to use a vector picture (in SVG, PDF or EPS format) that I created as a symbol for my points (spatial coordinates) instead of using the default symbols ...
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17 views

Retrieve image from area

I'm looking for a way to retrieve an image (a satellite one, preferably) from a rectangular area of a map given a minimum and maximum latitude/longitude. What tools can I use to achieve this?
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1answer
16 views

How can I export a Seed Points layer as a image?

I have the Seed Points layer produced by Watershed Segmentation. I want to export is as a image (with background). How can I do this? I understand that I can do Project->Export->Export Map to Image. ...
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1answer
16 views

NAIP image convolution

I am new to image processing and coding and I am having trouble applying a lowpass and highpass filter to a NAIP image. I have practiced with Landsat 8 images with a successful output but I am getting ...
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15 views

ArcGIS Online Popups - Display Imagery date & time properties?

I am displaying linked images from traffic cameras in my AGO popups. The images get updated regularly. If I download an image and look at its file info it has associated date and time properties. Is ...
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21 views

Convert grib to image using custom color scale?

I'm working on generating full color radar maps from a grib file. Example of the output I'm trying to create is here: https://boozedog.com/stuff/colorful.png Here's the input grib I'm using: https://...
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1answer
66 views

Google Earth Engine: Exporting many processed Images

I am new to Google Earth Engine and with the help of GIS community, I was able to learn really quick. So, kudos to the GIS community. But I am having a bit of an issue. I am currently exporting ...
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1answer
20 views

How to bind to coordinates <onlineresourse>, in sld GeoServer?

I have coordinates and there is an image (link to png image), I need to bind it to the coordinates (onlineresource tag) in the GeoServer. An example of how to google maps here https://developers....
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1answer
59 views

Can I find where a satellite image was taken in? [closed]

I really want to find where this is in because it was in my Math test and I've found a place like this before in another test but it actually had names around it so it was easier. I know it's blurry ...
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2answers
76 views

ArcMap to automatically create polygons from shapes that are present in an image raster

I have a geolocated greyscale geojpeg image showing a network of geological fractures in the ground. They show up as bright lineations and create a reticulate pattern (think giraffe pattern). I've ...
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36 views

Show popup on marker click on static image in Openlayers

Im complete newbie in scripting and I have problem which I can't solve (and I searched whole web for days for coming here for answer). Im trying to make very simple completely static image map. I ...
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1answer
76 views

Cannot export image on Google Earth Engine

I try to get a satelital image on my google drive by using the code: The image variable is mejorImagen, the problem is this: Export.image.toDrive({ image: mejorImagen, description: mejorImagen....
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23 views

Earth Engine Image.toCloudStorage exports map with solid layer

I am trying to export an Image as it is shown in the developer console. I am able to export it but the index.html file that toCloudStorage method creates shows solid black tiles. Here is the code ...
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1answer
40 views

How to accumulate in the image collection in Google Earth Engine

Here is an image collection [img1,img2,img3,img4,img5]. I want to get List or image collection [img1, img1+img2,img1+img2+img3, img1+img2+img3+img4, img1+img2+img3+img4+img5]. I tried to complete the ...
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1answer
42 views

Set 'system:time_start' in Earth Engine

I have an image collection(image) with 'system:time_start'. My function(iterate) is to get [img1, img1+img2, img1+img2+img3, img1+img2+img3+img4, img1+img2+img3+img4+img5]. But after I calculated, I ...
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7 views

Unable to add Image inside of popup template using a client side Feature Layer

I am trying to add an image media type to an arcgis 14.4 popup template using a client side feature layer. This is an angular app so I am using the esri loader for angular. I am setting the popup ...
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1answer
49 views

Problem with a function to create a unique image starting to image collection

Starting from Global Hansen dataset and in particular lossyear map, with the following function I obtained an image collection. Each different image is given by the overlap of image for the current ...
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57 views

GDAL “permission denied” on Windows

from osgeo import gdal ds = gdal.Open('/Data/F182010.v4/F182010.v4d_web.stable_lights.avg_vis.tif', gdal.GA_ReadOnly) The code showing Runtime Error Permission denied How to fix this? /Data/F182010....
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154 views

Use of array image in Google Earth Engine

I have a array image: var blist = change.select('tBreak'); Each pixel value in the image is a time.The time format uses is the serial date, starting from 0000-01-01. And I have an image collection of ...
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1answer
65 views

How to make the data in the list add up in Google Earth Engine

I am new in Earth Engine. Here is an image collection [img1,img2,img3,img4,img5]. I want to get List or image collection [img1+img2 , img2+img3, img3+img4, img4+img5]. I tried to complete the ...
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21 views

Manual Generation of Rastered Images for a TMS

I'm looking to generate rastered images for overlay on a Leaflet map. I have a large amount of latitude/longitude points with a value associated with each point. Think of them as polygons with a ...
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2answers
60 views

Digitizing historical Brazilian map in QGIS3.4

I am trying to overlay a map of a historical boundary (in .tif format) onto a Brazilian shapefile with subnational administrative boundaries. My general question is: what is the most direct (and ...
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1answer
25 views

Image recognition between Improved vs Raw Land for city parcels from Aerial with QGIS? [duplicate]

Are there any tools or methods that allow QGIS analyze whether the lots/parcels have been untouched or developed, and return a "1" or "0" to a table or points layer or anything? I was thinking more ...
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1answer
21 views

Export properties of a featureCollection along with features of it in Google Earth Engine

I want to read an imageCollection, reduce all images in the collection by the region. and save the result. However, when I save the result, the properties of the feature Collection is gone. It does ...
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40 views

Exporting imageCollection using Google Earth Engine JavaScript API

I have an imageCollection that I want to analyze further. In order to do so, I need to export the imageCollection, as a CSV let's say. Let's say I want to do the plotting part in the following code ...
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103 views

Canvas element with 'width: 0' in OpenLayers 6 instance on Vue.js

I am using Vue components to generate multiple instances of OpenLayers in the same parent component. Ultimately I am attempting to export an image of each instance of OpenLayers using the html-to-...
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128 views

How can I extract the Dnbr value in Google Earth Engine?

I'm trying to export the Dnbr value of each pixel, but i don't know how to do. This is my code: //SENTINEL2 var poligono = ee.FeatureCollection('users/florianaspatola/grassano'); print(poligono) //...
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1answer
81 views

How to set image for Picture / IPicture for ArcGIS Desktop?

I am struggling with ESRI's Picture / IPicture Java documentation for ArcObjects 10.4. I just need to grab the image file from my project's source (src) folder, and cast that as a Picture. Here's ...
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1answer
52 views

Use high precision to convert image from one EPSG defined CRS to another

This question is based on another question: I'm converting multiple images (.jpg or .png) from one EPSG defined CRS system to another, e.g. from EPSG:31255 to EPSG:25833 (on a server within a Java app)...

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