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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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2answers
74 views

Configuring ArcGIS Pro Pop-up with same Image for every feature

As a step to a better understanding of my options for configuring ArcGIS Pro Pop-ups with an Image, I have gotten as far as right-clicking on a layer, choosing Configure Pop-ups to open the Configure ...
2
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0answers
17 views

Wrong values after resizing (resampling) rasters using cv2.resize (Python)

I have two images (aerial photographs): ImageA is 4740x4240 and cell size is 0.1 m ImageB is 1849x1653 and cell size is 0.25 m. I want ImageB with the same size than ImageA. I used the following ...
8
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1answer
129 views

Creating vector (with lines/polygons) from raster based on paper map in QGIS

For a task I have several maps created with GIS that look like the following: I am mainly interested in the colored zones that aren't roads (red) or rivers (blue) and would like to turn these into ...
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1answer
17 views

Getting geometry of Image in Google Earth Engine

I have an image which is from type 'ee.Image' and I want to extract its geometry so that: im_geo = im.geometry(); but the geometry function of 'ee.Image' is DEPRECATED! Is there another way for it?
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0answers
36 views

Google Earth Engine - getting download URL of reprojected image not working?

Google Earth Engine Python API question. I'm having a strange issue where when I try to generate a download URL for an image, it works fine. But when I reproject the image before generating the URL ...
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0answers
25 views

Combine two images in Google Earth Engine

I want to combine these two images. So I do not need to open two maps to work. It takes forever to play with two maps. This is main map(colourful one). range : 0 - 17 var all_sld_intervals = ...
3
votes
1answer
61 views

Add popup images to polygons

I am already having a multi polygon layer of plantations in QGIS 3.8. Now I want to see popup images of the plantations when the mouse rolls over or clicks the polygon shapefile. I have until now ...
1
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0answers
23 views

QGIS- Widget Photo Attachment do not show photo (small pix)

I have attached photos with their file path in the column. And I have set the height and width of the photo. but it does not work to show the photo on the attribute table. and this is when I show ...
1
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0answers
7 views

Filter collection with millis data on MODIS

I'm trying to split a modis collection in two others, using like a splitter a data time that's defined in millis. I don't want to do it manually. var maskMOD13Q1 = function(image) { var qa = image....
4
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0answers
39 views

Displaying images as part of multiattribute labels using QGIS

I would like to display images referenced in an attribute column as part of a multiattribute label, so that I can eventually print them with the map. I do not want to display geotagged images, since ...
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0answers
31 views

Exporting map error - QGis

Whenever I try to export a map as an PNG image I get the 'successfully export' message but there is no file generated. The error happened in Zanzibar so I changed to Noosa but I still can't export the ...
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0answers
42 views

Determining average RGB values of raster layer image inside selected polygon

I have a layer which contains a number of polygons(around 10,000). My work is to check the imagery layer colour inside of that polygon and write a colour in the 'Ceiling_ID' field based on its average ...
0
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0answers
17 views

Filter out duplicate Sentinel-2 Images form Earth Engine Image Collection by date

I'm stacking all the images from Sentinel-2A from the L1C image collection, but when viewing the images beforehand, I see that there are duplicates images, same imaging date but different processing ...
0
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0answers
107 views

Export: Error: Internal error. from Google Earth Engine

I'm attempting to export an image by a time block for a particular census KML using the method below. Earth Engine is kicking back "internal error". As the error is not very helpful, I am having a ...
1
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1answer
25 views

Image with background as feature style

I'm working on project that uses Open Layers. I have a problem with styling some features. Is it possible to set as Style image and also specify fill and stroke for it, for example background of the ...
2
votes
1answer
34 views

Fit view to ImageStatic size

In OpenLayer 5, i've a long rectangular SVG image (like 7000x600 px) as main layer. I need to limit the view and pan only to its bounds. I tried the code below, but when zooming the layer can't panned ...
0
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0answers
18 views

How to use SVG file as the source for a layer in OpenLayers

I found this solution online but this is defining your own projection. I do not want to use the projection below, I want to use 'EPSG:2326' and put the svg file over the map such that it overlays on ...
2
votes
1answer
23 views

How to keep the image of a collection that are integrally contained in a geometry boundary in Google Earth Engine?

I have an image collection and a geometry ROI var ROI = ee.Geometry.Rectangle(-78.20688664502586, 34.67650023609108, -77.65207707471336, 35.216816430066366); var l5 = ee.ImageCollection("LANDSAT/...
0
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1answer
29 views

Deleting Picture Element using ArcPy in ArcGIS 10.3 Desktop?

I'm trying to delete a Picture Element from 45 MXDs. This code is a start for me: import arcpy from arcpy import env env.workspace = r"G:\PROJECTS\landuse\gis" for mxdname in arcpy.ListFiles("*.mxd")...
0
votes
1answer
36 views

In QGIS: NetCDF image too pixelated

When i import NetCDF file (.nc) to QGIS then I get a picture that consists of quite big pixels. Is it somehow possible to soften those pixels to get something like this:
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2answers
119 views

Coordinates of image corners for ImageExtent in Openlayers 5?

It is possible to get the coordinates of the four corners of the image, given the center of the image coordinate? or the bottom left and upper right corners? Currently, I am center the map in the lat/...
0
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1answer
59 views

Showing image (photo) stored as PostGIS base64 in ArcGIS Desktop

I have a PostGIS table which stores point data with images as attribute (in base64 data type). I would like to show the pictures from the column "bild" of the attribute table which look like this in ...
0
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3answers
50 views

Linked popup image in GeoJSON file

Developing the issue solved in this post: Trying to pop up image in GeoJSON file? I would like to have each GeoJSON image thumbnail possible to open in larger window. I was trying to connect with ...
1
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0answers
21 views

Multiply two image collections with different sizes based on dates

I have two image collections. They are both filtered by date beginning on Jan 1, 2019, and ending on today's date. The size of the first (kc) is 35 images and the second (ETo) is 225. The first has an ...
0
votes
1answer
37 views

WGS84 projection is invalid for aggregations

I am trying to extract the pixel value from the last image of an image collection. The problem is that when I do so, I get an error stating the following: This is my code for extracting the pixel ...
1
vote
1answer
48 views

Trying to pop up image in GeoJSON file?

I am trying to put an image inside the geoJSON file. I know, that Geojson works as string and I cannot input the image directly, however I found some stuff, like this below: http://www....
1
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0answers
13 views

How to plot Geoserver data (point data) as image on the map instead of vector plot? [closed]

Need the help to integrate it with angular 5 if possible.
0
votes
1answer
49 views

Label or font colors on an imagery background examples

I have been in searching of a website that was done by somebody from ESRI that wrote about...if I remember right...it was in either on the ArcGIS Mapping Center or in the ESRI Technical support ...
1
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0answers
33 views

Mask out areas inside a feature collection on Google Earth Engine

I am quite new to javascript and I am trying to apply a mask on an image to exclude areas inside a feature collection, I have seen that for the case of image collections the "mask" and "mask.not" ...
1
vote
1answer
41 views

Digitize image / fantasy map without projection

I have an image where I know the distance between two points in meters (say 800). How do I import this image in QGIS (3.8) so that I get this distance when I measure with the tool in the toolbar? ...
1
vote
1answer
28 views

QGIS georeferencer distorting colours?

I try to use the georeferencer to geofreference certain building plans, but the referencer really distorts colours: As you can see in the picture. it hollows out what used to be solid red, black and ...
0
votes
1answer
35 views

Update image geometry from another geometry (GEE)

I have a set of images I have processed. Unfortunately, the geometry of the image processed do not always fit the image data. Problem: Let's assume I have an imageCollection. Then, when I would like ...
2
votes
0answers
31 views

QGIS automated export to image of multiple layersets

I have one project that contains layers in QGIS. Every layer is a quarterly update of my fairway showing the fairwayprofile and aids-to-navigation of the whole of my administration area. My current ...
2
votes
0answers
56 views

Charting Normalized Difference of Image Collection?

I would like to get the normalized difference of each image within an image collection (In this case Sentinel-2) for a specific polygon/geometry and then chart the values calculated for each image. ...
3
votes
2answers
235 views

Create kmz with coordinates from images and thumbnails for symbols

I have about 110 geotagged images and am looking for an effective way to create a .kmz which contains for each image a point based on its geotag and uses a thumbnail of the picture as symbol. Clicking ...
0
votes
2answers
216 views

Using Open Google Earth cache file in QGIS?

I have a Google Earth cache file. Is there any way to open the Google image from a cache file in QGIS 3? I had done it in standalone PC successfully. Does it works also in Mapped Network Drive also....
0
votes
0answers
129 views

How to dynamically provide input for contour thresholding in openCV

I am the following codes for getting the contours in openCV # load the image, convert it to grayscale, and blur it slightly image = cv2.imread(args["image"]) gray = cv2.cvtColor(image, cv2....
1
vote
0answers
36 views

How to pixelwise annotation with QGIS

I need to create masks with QGIS of hedgerows for satellite images (raster) segmentation. I tried with the SCP plugin but I can't use growing algorithm because I only want to keep hedgerows, not ...
0
votes
0answers
51 views

How to access BLOB file from database table published to ArcGIS REST service

I have published a query table that contains a BLOB field to ArcGIS REST and have not been able to access the images. I tried using esriRequest, but the response type that returns is text, and I think ...
2
votes
1answer
92 views

Compress Large size of satellite image by Open Source GIS software [closed]

I have a new challenge to compress large size of satellite image from 59GB to 10GB as maximum size by Open Source GIS software to publish it to GeoServer.
0
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0answers
22 views

Why the Masking in ENVI does not give different statistical result

I want to run statistical band correlation of an image in ENVI. The image has been masked with polygon of interest, and shows no-data value outside the polygon. I expected that it calculated only the ...
2
votes
0answers
179 views

Saving osgeo.gdal.Dataset as GeoTIFF or JPEG with world files using GDAL from Python?

I am trying to take a plain JPEG with no spatial references, apply ground control points (GCPs) to it, and output a georeferenced GeoTIFF or JPEG with world files. I found some code that seemed like ...
0
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0answers
42 views

Get a 250x250 tile around a Point in an Image

I am trying to randomly sample 250x250 pixel tiles from a big Image, let's say 40000x40000. In this case the big Image would be the Hansen Dataset. I want to sample points in which a forest loss has ...
0
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0answers
38 views

Downloading Aster level 1T product?

When I try to download Aster level 1T data from the USGS Earth Explorer site it asks me to enter my username and password over and over when I click on download link of my desired product. What ...
2
votes
2answers
136 views

Post Orthorectification error reduction?

I am trying to orthorectify an old aerial photo that has control points. When I run an output and then validate it I find some offset or distortion. What should I do to fix this? Does anyone have ...
2
votes
0answers
112 views

Georeferencing multiple images as GeoTIFF (same size and extents) in QGIS

I have 50 images and I want to georeference them all on to the exactly same place. They have all the exactly same size and extends. I've begun to load the same georeferencing points for every single ...
0
votes
1answer
101 views

Georeference an image by knowing two Lat/Long coordinates?

How can I georeference an unrotated image by knowing two Lat/Lng coordinates? I tried to transform the coordinates to UTM, but this didn't work (for me), because I also need to rotate it and ...
0
votes
0answers
25 views

Mapping a LinearFit to colors

Refering to EE>Examples>LinearFit (https://code.earthengine.google.com/598af3369de7a4845f0325030a66e0e1) I would like to check my understanding. On line 20 comment says: // Display trend in red/blue,...
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0answers
89 views

Problem with WMS/WMTS Layer Image Quality in QGIS

I have been using an aerial provided by the state. I add the layer as a WMS/WMTS. Typically the quality is on-par with the resolution depicted in the online hosted mapping program (GeoWeb). However, ...
1
vote
1answer
355 views

Extracting qualified image patches in Google Earth Engine?

I want to extract qualified (e.g., cloud-free) image patches (e.g. size of 128x128) in a large image (e.g. 10000x10000) in Google Earth Engine. These image patches can overlap with other qualified ...