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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Image dimensions in Google Earth Engine

How can one get image (band) width and height on the server side? On the user side you do it with image.getInfo().bands[0].dimensions, following Extracting information from Google Earth Engine image ...
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Export multiple Images from collection to Google Drive not working with Google Earth Engine Python API 0.1.238

I am struggling with Google Earth Engine Python API version 0.1.238 to export images from the Landsat EVI collection (from 2002 to 2020, but i started with a small sample) to my Google Drive, which ...
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Getting image resolution in ERDAS

How can I know image resolution of an image in ERDAS?
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25 views

Viewing images with relative path through Attributes Form in QGIS

I work with Sw maps (field data collector) that generates shapefiles in which a field links to images through relative path. Originally I had non problem using Evis plugin, now discontinued. Now I ...
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WCS Unable to render RenderedOp

I have a GeoServer running with Tomcat, which serves GeoTIFF files as WMS, and it runs fine. Now I am trying to set WCS. It works with plain/text and application/gml-xml formats, but image/jpeg and ...
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26 views

Creating UI download button in Google Earth Engine APP

I want to create a button that download images without clicking the RUN button on the task tab. I want to do this for a GEE App, where is no possible for the user to go to the task tab and click Run. ...
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How to find top 10 greatest values in a GEE image collection?

I'm trying to categorize temperature extremes for a region. Using the Hycom GEE dataset, I know that using a Reducer I can find the maximum value for each pixel across the image collection (see code ...
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1answer
23 views

Copy/Paste image Element in ArcPy 10.3

I seeking a way to copy/paste an image in the layout with python code. I saw this documentation: https://desktop.arcgis.com/en/arcmap/10.3/analyze/arcpy-mapping/pictureelement-class.htm but didn't ...
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Images do not appear on the map in Google Earth Engine, no bands to visualize

I have a code that shows how to make a composite image for every quarter from 2013 to 2018. However when I tried to print some of them, I couldn't see any images or layers in the map below. The code ...
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Can you use the pixel weighting values when exporting a Google Earth Engine image asset to a GeoTIFF?

I am exporting image assets to my google drive as GeoTiffs. Each asset was originally created by clipping an image to a feature and then reprojected to a slightly coarser resolution. Therefore when ...
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How to get the data from Google Earth Engine?

I want to initialize three variables: one for water, another for buildings and the last one for the other things for 2010,2015 and 2020 of a certain location starting from the month of March using ...
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1answer
47 views

PyQGIS: Inserting a logo image in the layout [closed]

I have a big logo image (1443 x 1453) that needs to be imported and added to the print layout. The image should be resized (to about 15% of its original size) and placed at a specific location in the ...
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Increasing Resolution of Image By Splitting Image Pixel into Smaller Pixels | Google Earth Engine?

I have two MODIS satellite images with same custom band, one of 1000m/px resolution and other of 250m/px. I want to compute their mean 'image' and display as map layer. My current way of achieving ...
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How to convert GeoJSON to PNG image

I'm looking to use the geojson module in Python, as well as Pilllow to convert a .geojson to a .png image. I know how to extract the data from the file but I don't know what to do from there.
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31 views

How to export two vectors layer as one image?

I am writing Python code to take two vector layers as input add different symbology to it and then export that as a image. The vectors layers have been added to the map canvas but while exporting only ...
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1answer
40 views

Merge neighboring image tiles into a single image

I have a set of satellite image tiles from Bing Maps (info here). The tiles' names specify tile coordinates within the tile system and zoom, e.g. 156608-142775-18.jpg. An example set of tiles: ['...
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26 views

Creating an image collection from multiple uploaded images

Please help a noob to find a way (any way) to work with multiple (hundreds) images that I want to (upload and) process with earth engine. Here are the options I see: Use interactive asset management ...
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1answer
20 views

Why do Landsat images sometimes form triangles instead of 4 sided polygons to cover areas?

I put several Landsat8 images into ArcMap 10.7. I don't get the same kind of coverage (square area) you see in the first picture from the Earth Explorer site. I instead get picture 2: corners, ...
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1answer
34 views

How to Combine Two Image Overlaying Into One Image in Google Earth Engine?

I have two images of different sizes. I can make them overlay each other using Map.addLayer() for each. But I want to combine them into one image as shown in illustration below. How to achieve this?
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60 views

How to calculate the number of pixels with a specific value in a image Google Earth Engine

I am trying to count the number of pixels who are equal and greater than 0.6 in a specific band (albedofill1). I am trying to count this for every image in my collection (glacier_final). For now, I ...
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20 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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33 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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1answer
58 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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1answer
32 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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43 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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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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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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1answer
36 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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1answer
36 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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1answer
104 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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1answer
90 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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1answer
162 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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2answers
59 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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198 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
65 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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1answer
38 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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1answer
100 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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1answer
50 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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37 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
33 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
19 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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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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34 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
193 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
26 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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63 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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