Questions tagged [rgb]
An image encoding scheme with three bands, one for each primary color.
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Plotting Landsat8 RGB image in R
I want to plot a RGB image of Landsat8 in R.
Therefore I use GGE (rgee) and save one image locally. Finally I want to plot the image as a RGB image. But no mather what band combinations I use, the ...
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How to convert HSL to RGB in Earth Engine (Python)?
I have 3 Images representing HSL (Hue, Saturation, Lightness) attributes of a single image. I would like to display them as a single RGB image, meaning I would like to create 3 separate bands with R, ...
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Calculating temperature from multi-spectral map in QGIS
I have a map showing heat islands in a large city in the form of a multispectral (RGB) raster. I'd like to obtain the temperature or at least a temperature scale (the ultimate idea is to be able to ...
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Is it possible to make a True Color RGB with 2 VIS band and one IR band?
I want to create a True colour RGB. I am working with MODIS L1 images. For some circumstances, the only bands that I have available are:
Band 1 (620 - 670) (VIS)
Band 2 (841 - 876) (VIS)
Band 22 ...
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Why doesn't a 1-pixel buffer around the edges of Mapbox's Terrain-RGB tiles show up?
I am reading the documentation of Mapbox's Terrain-RGB tiles. It says:
Buffered tiles. Each map tile includes a 1-pixel buffer around the
edges to enable tile interpolation in uses cases like terrain ...
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61
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earthengine: correct max value to plot RGB of Sentinell 2?
I would like to display the RGB true colors of a Sentinel Image in Earth Engine. I understand that I should adjust the parameter max in Map.addLayer(..., {bands: ['B4', 'B3', 'B2'], max: 7000}); given ...
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How to make use of a 3 band DEM for analysis?
I have a 3-band RGB DEM raster. However, the pixel values are not very useful for any actual depth computations. How can I extract the depth values from the DEM?
I understand that it is not easy to ...
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RGB to Red-White-Blue gradient
I have tiff RGB data that I want to transform in vector attribute color gradiente, in which Red means 0, white is 0.5 and Blue is 1:
For a blue-green-red gradient I used the formula 255R+G-255B and ...
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Exporting binary file from Google Earth Engine
For a hobby flight simulator C++ project, satellite RGB and elevation data is needed. Since a few days I am trying Google Earth Engine. It is amazing at showing the data as a map. I see GeoTIFF export ...
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Error in RGB to HSV conversion in R: "cannot use this formula, probably because it is not vectorized"
I'm trying to convert a bunch of small rgb rasters (3 channels) into hsv rasters using the raster package in R, similar to the suggestion here:
QGIS - RGB multiband to HSB(HSV?) multiband
It has ...
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Cannot export RGB values to CSV
I can export NDVI values to CSV file. But I couldn't export RGB values(b2,,b3,b4) to csv file and RGB values must be in range 0-255.
var geometry =
/* color: #d63000 */
/* displayProperties: [...
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Add NIR information to ALS point cloud
I need to merge Red-Green-Blue_NearInfrared (RGBI) information to pointclouds and I am doint it in R with the package lidR version 4.0.2.
I made this small example case to show my error and questions:
...
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Getting sun spectral irradiance values from a specific local on internet
I'm implementing a system to estimate reflectance from RGB and I need sun spectral irradiance values from these bands. I saw that there are mean values available on internet, but, would be very ...
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QGIS visualization of Pleiades image is gray and fixed only when copying style
I have airbus Pleiades images which has 4 bands - B , G , R and NIR.
The image was reprojected (4326) and resampled (50cm) using GEE as following:
task = ee.batch.Export.image.toCloudStorage(
...
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Converting Landsat 8 RGB bands to 8-bit colors
I generated composite images of Landsat 8 SR images using this Google Earth Engine collection, and for a machine learning project now I need to transform the RGB bands of these images to 8-bit colors.
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Extract By Mask Tool is changing my composite raster bands
I wanted to extract an area (as set by a polygon) from a composite band raster using the Extract by Mask tool. Once I've done it, I've changed the RGB symbology to the correct bands specified by ...
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FME unwanted conversion of RGB to palette in PNG writer
I have a pile of TIFF images (aerial photography) that I want to convert to PNG. Band interpretation of my source TIFF files is allways RGB, cp. gdalinfo:
C:\OSGeo4W>gdalinfo -mm -stats s:\ER-GIS-...
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How to generate/export a RGB raster layered over a hillshade raster based on visualisation palette in R
I have defined my own colour palette, and written my raster as a GeoTIFF with the colour palette saved into the image using the code below.
col_rmp <- c('#0180FF', '#0101FF', '#01FFFF', '#01FF01', '...
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Reprojecting TIFF from EPSG:3857 to EPSG:4326 - Output Darkened
I'm using QGIS to re-reference a batch of satImages from one CRS to another. I've got it to run and complete, that's fine. However, looking at the images pre-processing they are bright and vivid in ...
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Converting raster to DEM using QGIS
I have a .jpeg file with three channels, and would like to convert this to a DEM to generate contours lines to export as a vector. I've added a screenshot below of the image in qgis, and a profile ...
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Saving orthomosaic .tiff data with symbolization changes using QGIS [duplicate]
I changed the symbolization of my .tiff data such that the NDVI band (Band 1 (Gray)) is represented with 4 colors (RGB derived). Is there a way I can save the .tiff including the symbology changes? ...
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Are RGB values encoded/recorded in raw LAS/pointcloud data?
RGB info in the pointcloud: Is this always from a post-processing step (e.g. using imagery overlay techniques to do so) or does it in some cases come from the machine/sensor which recorded the LAS?
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Resample layer but keep RGB bands (QGIS)
I have an orthophoto from a drone with a spatial resolution of 0.02m and would like to reduce the resolution to 1m. The simplest way of doing this is using the export>save as>and manually fill ...
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Correcting color of soil and water using QGIS
RGB single band image merged together result as shown in photo.
After I merged them, I found out the blue color part is actually soil, but show up in blue instead of brown or actual soil color.
How do ...
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348
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Create false color images on Earth Engine
I want to calculate some band ratio images on e.g. Aster imagary and display them as false color image.
For example I compute band ratio images on Aster as follow:
var BR1 = AsterImageMosaic.select('...
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Adding RGB attributes to voxel
How can I add the RGB attributes to a voxel object?
The idea is to give RGB to the colorargument inside the plot function in lidR. And still have the attribute Z as the legend in the RGLwindow. The ...
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What is the difference? : in xdg-open in linux and QGIS in window
I made a rgb raster image with using GDAL script in the Linux (Centos7) environment.
When I open the rgb image with xdg-open, it's too dark, but when I open it in the QGIS, it is clear and more ...
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Linear fit in GEE, why is the ouput plotted as an RGB image and what do the max and min values signify?
I am currently reading up on the linearFit() and linearRegression() in GEE. I was looking at the developer guide for these functions, which I think I understood correctly, except for the way in which ...
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Classification of drone imagery (RGB) with SCP
How can I work on the classification in orthophotos (generated by Metashape from a DJI Phantom drone) when I cannot input the orthopoto into the band set? SCP does not find the raster of the ...
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Downloading RGB Sentinel-2 with Google Earth Engine and Python
I am fairly new to the Google Earth Engine platform, and I want to create a dataset for my machine learning project using the aforesaid platform. As far I have this code for downloading a single ...
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Vegetation indices extraction from RGB images
I have been working on the project to classify crops as health or unhealthy. For this task I have taken the open source dataset from the the website https://www.sensefly.com/education/datasets . It ...
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540
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QGIS: multiple mosaics bands to 1 Visual RGB
I have UAV raster converted with Pix4D mapper in transparents mosaics blue, green, red, nir, pir.
Which tool can I use to translate into a visual RGB image?
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Produce RGB image of satellite image mosaic or merge images with negative dimensions
I am new to image processing with python and would like some help with a particular problem.
I am trying to create a mosaic of raster satellite images using the code extracted from this link https://...
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Plot RGB values for each feature seperately
I want to plot each rgb value for its respective feature of the layer via pyqgis. Atm I struggle to properly implement it for each layer individually. With my current code below, all features get the ...
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While exporting GeoTIFF doubles in size [duplicate]
I was given an RGB GeoTIFF orthomosaic image that is just over 10GB. I pulled it into QGIS and tried clipping it to get under 10GB (to use in another program that only allows up to 10GB).
Though when ...
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Python gdal.translate doesn't write the output file
I am very new with gdal and python in general, therefore pardon my simple question.
I have a geotiff (single band, black and white) that I want to change from grayscale to RGBA (becasue I want to use ...
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Exporting RGB image from Google Earth Engine
I have a natural color of Hawaii Main Island to export, but when I exported it, it only showed a grayscale information in QGIS, but I know that this is not a QGIS problem, it's from GEE.
This was the ...
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How to export/generate a RGB/stack raster based on raster visualization palette in R
I have this data:
r <-raster(volcano)
And the plot generated:
plot(r)
How to generate or export a raster with this color palette (or any other) with spatial reference?A RGB/stack raster. For ...
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Does geospatial server software exist which can support dynamically generated imagery as a WMS?
Here's the situation:
Input:
A bunch of data (NetCDF) that contains seperate variables/arrays for R/G/B channels.
Desired output:
Web service (e.g. WMS) that can serve simulated true-color imagery ...
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r raster:: extract band (integer) values from raster buffer without taking the mean
I want to extract values from my RGB raster, which are in the buffer(zones) of my 14 station points data.
So far the values are extracted with the raster::extract by taking the mean of some values ...
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Extracting contours from .jp2 DEM dataset
Problem:
I have received a data set from a municipality that is a 3-layer LiDAR JP2 DEM and need to extract ground contours at 1 m intervals for a specified area (more below).
Programs available:
...
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Converting (Corine) land cover palette to RGB within Google Earth Engine
I'd like to export a Corine Land Cover (CLC) Map (i.e. an image from ee.ImageCollection("COPERNICUS/CORINE/V20/100m")) from Google Earth Engine go my Google Drive, forgoing the need to any external ...
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Zonal histogram from 3 band RGB soil raster
I have soil map with 3 RGB bands and I need a zonal histogram for polygons from this raster (how many pixels of each soil the polygon contains).
First I tried to sieve the raster and then get zonal ...
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1
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Why do RGB values seem very high for my multispectral orthomosaic imagery?
I am using ArcGIS Pro (2.4.2) to analyze a 5-band multispectral image captured with a Matrice 200 (UAV). All image processing has been done with Agisoft Metashape, which includes calibrating spectral ...
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132
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Convert 1-band .nc file to GeoTiff with RGB
How can I convert 1-band .nc file to GeoTiff with RGB?
I have tried using gdal translate but it won't let me apply color interp of RGB to the .nc as it has 1 band.
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QGIS - RGB multiband to HSB(HSV?) multiband
I need to calculate the following index on parts of a drone image (RGB multiband)
DGCI = [(Hue - 60)/60 + (1 - Saturation) + (1 - Brightness)]/3
Is HSB the same as HSV?
How do I convert my entire ....
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1
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658
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Downloading only one band in Google Earth Engine without the RGB bands
I have calculted the NDVI of specific plot and download it in order to run analysis in QGIS. The image on GEE had only one band: the calculted NDVI, but whenever I open it on QGIS I have 4 bands: NDVI ...
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Exporting RGB values using ArcGIS Desktop?
I am working in ArcGIS 10.6 Desktop. I have several polygon shapefiles where the symbology is set to unique values. The amount of distinct values per shapefile is between 10 and 40. I assigned special ...
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363
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Stack 3 layers and display them as one in GEE
I have used this code https://www.gears-lab.com/intro_rs_lab8/ in order to learn and practice my SAR-1 skills.
I have created an almost similar code, but few things are not clear to me regard this ...
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Detecting and deleting alpha mark in QGIS
I got a couple of 4 band images, band 1-3 is RGB and band 4 is NIR.
In the properties it says nothing about an alpha mark, does that mean that none of them is marked as alpha channel or how do I ...
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