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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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4 views

How to define geometry to export a GeoTIFF from Google Earth Engine?

I have GHSL (global population data) loaded into Google Earth Engine and now I want to export the complete data in form of GeoTIFF files. This is my export code: Export.image.toDrive({ image: ...
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0answers
15 views

Interactive trigger for external image viewer?

Is it possible to navigate from point to point with a shortcut on the keyboard and interactively (tracking) display the embedded photos at the point locations in an external image viewer? I could do ...
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1answer
18 views

Point cloud/image comparison?

I used MATLAB software to classify point cloud data into 3 classes; (1) main; (2) protrusion and (3) recess. In MATLAB I assigned a distinctive color to each class to differentiate between classes (...
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0answers
29 views

Using .map() to display multiple images in an ImageCollection [duplicate]

How do I display multiple images from an image collection using .map()? // Create clipping function var clipper = function(image){ return image.clip(geometry); }; // Load image collection var ...
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0answers
9 views

Creation of multiple Referenced Mosaic Datasets with different names and coordinate systems

I am trying to create multiple Referenced Mosaic Datasets with different names and coordinate systems based on 1 source mosaic dataset. My code is as follows: # test referenced mosaic dataset ...
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1answer
38 views

How to insert multiple images in the Atlas in QGIS?

I have a layer of CROSS SECTIONS (34) and the same number of IMAGES correspondent of each section. In the cross sections layer I have a column named PHOTOS where I defined this field as "ATTACHMENTS > ...
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1answer
28 views

EE:A region must be a GeoJSON Polygon or LinearRing. Got: 'MultiPolygon'

Tried to export transition classes for a region of interest. I cant export image to drive for my selected feature collection. Getting an error after running for a while,"A region must be a GeoJSON ...
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1answer
28 views

How to mosaic images with different CRS with rasterio

I am doing mosaicing of 14 raster images (.img format) to completely cover a province.see original spatial location of separately opened tiles(). Mosiac operation is completed but 4 tiles are mosiaced ...
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1answer
32 views

Save geometry as image

I want to save the geometry as image. This geometry should look like ICAO areas, but I have got the whole world map. Is it possible in Geotools to save exactly that part of the world map which I need, ...
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1answer
41 views

How to Sample Locations from a Satellite Image

I am using the Near infrared and red bands from satellite images to research soil quality in southern Africa. The study site is about 20 km wide and 20 km long so almost square shape, and I am using 5 ...
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0answers
13 views

Resampling of Landsat 2 data

I am using data for Landsat 2, Landsat 5, Landsat 7 and Landsat 8 for same region for change detection analysis. As Landsat 2 has spatial resolution of 60 meter while all the other data are in 30 ...
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1answer
21 views

When adding properties to an image, no longer allowed to add to Map

If I create an image, that I add properties to, I can no longer add the image to the Map. How can I add it, or how can I add properties so that it doesn't break? var myPoint = ee.Geometry.Point([-64....
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2answers
20 views

Borders appear when reducing the global opacity of multiple raster images in QGIS 3.2.3

I want to reduce the opacity of multiple raster images and when I use the global opacity slider to do so, black borders appear between my images. I would want to eliminate these borders.
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1answer
33 views

Use open layers plugin display as georeferenced image in QGIS

Could someone tell me if it is possible to save a plugin open layers display as georeferenced image in QGIS 2.18?
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0answers
18 views

Embedding images into feature class using ArcMap?

I have a feature class with 9,000+ points and want to add a new raster field which will contain a single image (photo) for each point. However with 9,000+ images you can imagine this can be a tedious ...
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1answer
58 views

Intersect of raster image on Google Earth Engine

I have this situation on Google Earth Engine: 3 different images, each of these are made by 17 different bands. These bands represent the different year. I call these images with these letter: a,b ...
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1answer
113 views

Reading a 4 band image with rasterio (python)

I am trying to view a tif satellite image which has 4 bands. I want to remove the last band (NIR) and view the RGB image only, so I am trying to split the NIR from the rest of the image. Here is my ...
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0answers
23 views

QGIS Web View doesn't show up picture correctly

As a part of my graduation project, im working in data system that can show up features about a railway inspection. One of the features are images that show up failures. These images are from URL ...
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0answers
14 views

Unable to view previously published AGOL Map Image Layer

It's been a while since I've worked with AGOl and map image layers. I'm in the process of republishing several Map Image Layers to a new server. The issue I've been having involves not being able to ...
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0answers
41 views

Keep high resolution on image export?

I'm currently trying to export a PDF from an image service that we have hosted. The imagery looks great within Arcmap, but the exported imagery looks really rough (coarsened). Does anyone know what ...
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1answer
201 views

Convert PNG image to Shapefile in QGIS [closed]

I have a district boundary shapefile. I want to divide that district according to the boundaries given in image. How we can achieve it? Can we add vector file first then add image as an overlay on ...
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1answer
67 views

How to convert masks generated by rasterio to channel last mask

The problem is about using rasterio to generate mask from GeoJSON file which contains geographic coordinates. The function that I used is from: from rasterio.tools.mask import mask with rasterio....
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0answers
63 views

Could not allocate required memory for image

I'm trying to export a 24k image (export set to 1650DPI) using the "export as image" function but I keep getting the "Could not allocate required memory for image" warning. I don't understand why ...
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1answer
66 views

Classification erosion - semi-automatic classification plugin

I get an error when working Classification Erosion tool in Semi-automatic Classification Plugin (SCP). I use QGIS v3.2.2 and SCP v6.2.4. The tool is not changing the pixels of the raster layer and ...
2
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1answer
57 views

White stripe when exporting QgsLayout Map to image

I have a problem when I try to export a Map in the Layout of QGIS 3 with the Python API. Here is my code : qpt = QDomDocument() qpt.setContent(content) layout = QgsLayout(QgsProject().instance()) ...
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1answer
435 views

Image collection to Single Image in Google Earth Engine

I'm stuck with an issue in google earth engine. I'm working with MODIS Burned Area Monthly Global 500m, for a certain polygon area: var MOD = ee.ImageCollection('MODIS/006/MCD64A1'); var MOD1 = MOD....
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1answer
32 views

Colorize radar imagery so it looks like optical imagery

Here is an imagery from a radar satellite Is it possible to colorize a radar image, so it looks like and enables the same kinds of analysis as for an image captured from an optical satellite (simple ...
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1answer
143 views

Merging Shapefile with Image in QGIS? [closed]

QGIS version 3.2.1 Windows 10 Project File on GitHub Shape files on Github I am trying to create shapefile from coffee cup image. The actual coffee should be the shapefile. However I would like ...
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1answer
327 views

Earth engine error: Error: Invalid argument: 'image' must be of type Image

I'm trying to export an image for some SST temperatures for a given region ( and imported table EEZ) but I'm getting the error; Error: Invalid argument: 'image' must be of type Image Map.addLayer(...
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2answers
112 views

What does 4.5 mm resolution mean?

this is a rather simple and trivial question, but before I contact my supervisor I want to get sure. I have a .tif image that says the resolution is 4.5 x 4.5 mm. The output of gdalinfo is: Pixel Size ...
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0answers
55 views

Processing drone Images of body of water?

I took some pictures of a body of a body of water using a multi-spectral sensor attached to drone. When trying to process the image using Pix4D, more than 50% of pictures were unable to calibrated. ...
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0answers
57 views

Reducing image collection separately for each image to make series?

I know how to reduce a collection to one image, or an image to a value in Google Earth Engine. But I can not find an easy way to reduce each image in a collection to a statistics and get a list of ...
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2answers
82 views

Detect the coordinate reference system based on an image

Given a map as image, how can I find out which coordinate reference system it has? The question is general, but here is a specific example. Below is the map for which I want to find the coordinate ...
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1answer
658 views

How to download satellite image from planet.com using API key

I would like to know what to do (step by step in simple words) and how to get data from www.planet.com There is tutorial https://www.planet.com/docs/api-quickstart-examples/ but anyways I have ...
3
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1answer
126 views

ArcMap Image Analysis Window - functionality is grayed out

In ArcMap's Image Analysis Window, none of the tools are available even though I have a raster selected in the window. I do not have Editor turned on. I can't identify why the Processing tools are ...
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2answers
536 views

Linking images to features in geojson layer popup using Leaflet?

I have a map of cycle fatalities, in which skull icons are clicked to produce custom popups: I would like to include an image along with the rest of the information on the popup, so there's a picture ...
2
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1answer
87 views

Seeking Image similarity software?

Could anyone suggest a script/tool/software, that would: recognize and quantify the similarity/dissimilarity between the four attached images? Meaning, it would show that there is a greater ...
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1answer
110 views

Invalid or nonexistent map configuration token

I get the return message NON-VALID PICTURE URL in the POPUP in the CARTO map. when editing in CARTO I get the "Invalid or nonexistent map configuration token". Please forgive my ignorance as I am a ...
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0answers
274 views

Select border region from segmented image

I have several thousand aerial photographs which have been scanned in and orthorectified, but the image borders and fiducial markers remain on the image. I am looking to identify these parts of the ...
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0answers
48 views

Locating and copying millions of images in QGIS?

I have image data collected across the US and Canada from 2016 and 2017. I need to find all images that are within 5 meters of each other in order to compare changes in landscape over the year. Eg, ...
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0answers
24 views

Image interpolation from original earth coordinate matrix to a new earth coordinate matrix

I have a geographical image covering a certain locations in New York State. Each pixels corresponds to a locations which its latitude and longitude can be obtained (Or you can say that each pixels ...
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0answers
138 views

Color bar legend for DEM (Digital Elevation Model) Layer in QGIS [duplicate]

I have made an equal interval color ramp DEM map and now I want to show the colors in the map as a legend in my map image. How can I do that?
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0answers
12 views

View Images in Carto

For 120 datasets, which I already loaded into carto and are shown where they are supposed to be shown, I want images to be viewed as well. In my thinking it should have been enough to put in an URL ...
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1answer
50 views

QGIS project with integrated images

I would like to know if anyone knows how to incorporate images as attributes in a QGIS project, and that these are displayed even if the folder containing the project and the source files (shapes, ...
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1answer
302 views

Cloud cover percentage in Google Earth Engine

I'm doing a project at my university about the Cloud cover percentage in determinate areas in the world. I'm completely new to Google Earth Engine and I'm struggling a lot trying to find a solution ...
1
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1answer
317 views

Exporting map as georeferenced image

I am using OpenLayers to create a map where I can Zoom and export the view (Following this exemple https://openlayers.org/en/latest/examples/export-map.html) This works fine, but what I need is a ...
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0answers
102 views

Using GDAL to create a simple image from scratch

I am using GDAL to try and create a simple image from scratch. This is the code that I am using: public Form1() { InitializeComponent(); // Set environment variables to ...
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0answers
30 views

adding photo to the pop up field in qgis2web? [duplicate]

I want to add charts on my web map in a way that when i click on the point the chart appears in the pop up field. Do i have to add it as an image in the attribute? Can i do that when the ...
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1answer
73 views

Get convex hulls for all rasters in raster_columns [closed]

how to search the polygons of the images that I have in the Database? I want execute this function ST_AsText(ST_ConvexHull(rast)) for every "r_table_name" SELECT r_table_name FROM ...
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0answers
38 views

Couldn't load images on html on plugin processing (Linux and Windows)

Context I develop a processing plugin for QGSI 2.18 and in design GUI with *.ui files (Qt4) I can’t load PNG images with relative path in html defined in .ui files Works with absolute path It ...