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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62 views

GeoTools and image storage / retrieval

Please can someone let me know how I can create a schema (using SimpleFeatureTypeBuilder()), read and write image data? Simple data types (Integer/Float etc) work fine but how do I handle image data?
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1answer
798 views

Finding coordinates of the image corner

I have a .bmp image with a map. For creating image i used a Ingeo 4.4 and function MakeImage() What i know: Height an Width of bmp image dpi Map Scale Image Center's coordinates in meters. What i ...
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746 views

Why does Exporting Document to JPEG using ArcObjects in Layout View result in bad picture quality?

I want to export the Active View with ArcObjects to JPEG. All Layers in the Document are raster layers (GeoTiff). I use this code which works quite well when in Data View, but when I perform the same ...
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1answer
285 views

Is there any “proper” way of setting the viewport for QGis Time Manager?

I'm working on video visualisation for some geo data. Everything works fine for me except the viewport that the time manager plugin is using for image frames. It makes image frames size of actual map ...
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1answer
4k views

How to add images in CartoDB infowindows

Can't seem to get the default site to display images. I've added HTML anchor hrefs to a image column, for example: <a href="http:\\website\image1.png"></a> I've dragged the image column ...
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2answers
2k views

How to add pictures to OpenLayers map using GeoServer?

I have web map showing land parcel and buildings.I am using GeoServer WMS and OpenLayers. My buildings are showing as point on map. Then I want to add some images to those points to show when ...
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1answer
5k views

How to display pop up image when click point in OpenLayers web map

I have basic WMS web map showing parcels and points layers which representing buildings of parcel. Then I want to add building images for each and every point. Then when a user clicks on a point image ...
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0answers
20 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 ...
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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.
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0answers
19 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" ...
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1answer
37 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? ...
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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 ...
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0answers
31 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 ...
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0answers
32 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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0answers
133 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
40 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
167 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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0answers
354 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
18 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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0answers
45 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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0answers
52 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 ...
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0answers
333 views

Leaflet.js - GeoJson properties as icon [closed]

In this map I am looking to display each image as a thumbnail from the GeoJson file. For the moment I am using this code: var myIcon = L.icon({ iconUrl: '<img src="feature.properties....
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0answers
57 views

Identifying clusters in classified imagery data

I am relatively new to working with satellite imagery at 1 m resolution and am struggling with a methodology for "grouping" the imagery. Using ArcGIS, I have performed an ISO classification on some ...
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0answers
246 views

Different image quality for different zoom levels (OpenLayers/GeoServer)?

Original data that raster layers are made of are of a high quality. At a small scale (1:100) this is useful. However at a large scale (1:10 000) it results in ~300KB PNG images which are actually not ...
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0answers
45 views

Google Earth data backup [closed]

Is it possible to have data backup? If so how long? Except Google Earth is there any other authentic system that can provide cultivations image data of a field for last few years?
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76 views

Automated way to create polygons from coloured map

I have a scanned map that has areas of different colours. I want to create polygons for each area and would like to avoid doing it manually (tracing over the shapes). Is there a way to do this? I ...
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0answers
77 views

Launching hyperlinks using non default Windows Viewer in ESRI Web Applications

We have developed a custom Python based image viewer, which we would like to deploy in Portal for ArcGIS for viewing hyperlinked images (through attribute tables). We can't use the native Windows ...
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0answers
69 views

Make images/PDFs in QGIS from Vector Layers [closed]

I have a bunch of vector layers and a few polygons that I want to use to create a image out of while having my image in the background of an aerial photo. I am unsure what commands to use to ...
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0answers
16 views

ArcGIS Attribute Image Download [closed]

I am creating a database which has to consist of images (the images are older survey PDF plans that I have been saved as jpgs). I understand the feature has to be in a geodatabase, then the attribute ...
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0answers
315 views

Generating shapefile polygons from png

I'm trying to generate shapefiles from png image and isolate polygons by colors. I'm using gdal_translate to georeferencing image to GTiff and gdal_translate.py to convert GTiff to shapefile. ...
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0answers
35 views

Reposition geotagged image on mapoeg [closed]

I am building a map in leaflet, rendering a variety of layers on top of the map. One layer contains geotagged images fetched from a folder (with Leaflet.Photo). Some of the images GPS locations are ...
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0answers
280 views

Including image in callout using ArcMap?

I'm using ArcMap 10.3 and creating a map of 30 properties where each property needs to include an image within the callout. The final product has to be a printed map. I'm familiar with creating ...
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0answers
43 views

Cropping Oblique Photos to Geographic Feature

Let me preface this by stating that I know I'm in the GIS neighborhood and I'm asking a code heavy question, but my hiccup here isn't the programming - it's the GIS and associated math. I am writing ...
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0answers
695 views

How to reshape an array of points into an image

I have a numpy array of shape (1964, 3), in the following format: [ [ 0.3945, 52.700, 0.8 ], [ 0.3788, 52.121, 0.3 ] ] etc. Each nested array represents a point in the format of [longitude, ...
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0answers
141 views

Solar Potential roof-top analysis using GIS and Remote Sensing [closed]

3D Building models were generated by using Google Sketchup Pro and Google Earth. Then shadow casted 2D orthographic raster models were exported as TIFF or JPEG format. For further analysis with ...
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0answers
8k views

Zero-size array to reduction operation maximum which has no identity

Below is my identify background code, which identifies a background from an image and removes it.; Previously it's was working fine but after I chunked my images and try to find out background I got ...
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0answers
490 views

How to host kmz file for Google Earth Pro network link

I have a repository consisting of a large number of image overlays, polygons, and 3d polygons in Google Earth Pro. The image overlays are linked to and stored on a windows web server and it works fine ...
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0answers
246 views

4 Band JPEG2000 compression for RGBNIR

The South African National Mapping Agency acquires multispectral imagery (R,G,B and NIR)and currently compresses its aerial imagery with JPEG compression with a TIF wrapper. So we give out JPEG (Q3) ...
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0answers
129 views

QGis through python script : no map exported (map will be printed here)

I am very new to GIS in general and even more to QGis. I have a pretty simple task which is to import all shapefiles in one folder, style them and finally export them. I have wrote python code that ...
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0answers
86 views

Stripes and Distortion in classification result when performing maximum likelihood classification in ArcMap [closed]

I have trouble performing a supervised classification in ArcMap 10.3. I created training areas and executed the "interactive supervised classification"-tool, which works totally fine and gives back ...
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0answers
436 views

How do I make a ratio image on Erdas Imagine 2014?

I have a stacked image but want to divide bands 4/5/. I have built a model on the model maker but the resulting image is completely black after running the model. When I open the attributes table the ...
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0answers
75 views

Individual tree extraction [duplicate]

I would like to extract individual trees in ArcMap 10.1. I have 1.3 meter resolution DSM data created from aerial images. I used Crown Height Model to extract tree heights (as attached file), but I am ...
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0answers
29 views

Orthorectify large set aerial images [duplicate]

I have a large set of images that I want to stitch the together and orthorectify. They have been taken from a small aircraft. The camera of the aircraft is tilted, thereby, although gps data is ...
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0answers
624 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 ...
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0answers
135 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?
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1answer
97 views

Problem with low quality tiff

I have the problem with low quality raster. Now it looks like this: a busy cat http://iv.pl/images/53039057684486451032.png I would like to change this to looks like this: a busy cat http://iv.pl/...
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0answers
117 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 ...
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0answers
33 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 :...
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0answers
80 views

Using NDVI values as covariate in survival analyses

I am trying to become more familiar with processing NDVI values in GIS. However, despite its usefulness, it seems to have some limitations. Namely, creating NDVI values across a large scale can be ...
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0answers
63 views

Using QGIS in medical Science? [closed]

I was wondering if anybody would be interested in collaborating? My Idea is using QGIS to analyze and quantify Immunofluorescence raster images of cells from human serum.