Questions tagged [multi-band]
Raster data with more than one band/channel of information. Also known in imagery as multi or hyper spectral.
150
questions
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26 views
Creating a raster file with multiple attributes from numpy arrays?
I have 2 numpy arrays (same dimension) which I would like to use to create a TIF raster file with 2 attributes. I'm trying to do so with rasterio with the following piece of code:
out_meta = .....
...
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1answer
36 views
Create multiband raster from a single band raster with fields
I have a raster which has a single band containing what is effectively a lookup code. When I open the raster in ArcMap and open the attribute table I can see several fields which I guess come from the ...
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0answers
20 views
Merging satellite images error
I am trying to merge 3 satellite images of 3 times. The images are median images. I have used the following code but there is an error.
var maskL8 = function(image_m) {
var qa = image_m.select('BQA'...
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0answers
19 views
Python code error when making fusion of multispectral image and DEM
I tried to fuse 4 multispectral bands from Landsat 8 with resampled SRTM, Aspect, Slope. It should contain 7 bands: R,G,B,NIR,DEM,Aspect,Slope. The code execution generates output raster, MS bands are ...
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0answers
38 views
BandOffsets.length is wrong!
I am trying to process large GeoTIFF images using GeoTIFF reader provided by Geotools library. However while processing the image getting below error:
org.geotools.data.DataSourceException: ...
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0answers
24 views
Multi-seasonal image stacks in GEE
I want to stack layers of 3 images (median images from 3 seasons). I want to differentiate the land uses in different seasons. for example, there will be more waterbodies in rainy season but less in ...
1
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1answer
43 views
Batch changing of Raster Bands of Multiple Rasters in ArcGIS Desktop?
I have a ton of rasters in my ArcGIS project, each with 4 bands.
At the moment, I am changing the raster bands, one by one, for each file:
Red becomes Band 2
Green becomes Band 1
And I am setting ...
1
vote
1answer
71 views
Get non-masked values of multiband numpy masked array
I am working on a multiband image with python.
I imported my image as a masked numpy array of shape (bands, rows, cols) using rasterio. The mask is the same for all bands.
I would like to get the ...
2
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0answers
59 views
Generate an accurate DTM with photogrammetry?
I generated imagery from a low flying drone (40 M AGL) equipped with a mica sense RedEdge multi-spectral camera and have processed the imagery in PIX4D and now am attempting to do some analysis in ...
1
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1answer
27 views
Is there an alternative function which does the same thing as clip raster by masked layer on QGIS?
I am having some technical problems with the clip raster by masked layer and I faintly remember using a different method a long time ago for a similar problem. Anybody familiar with another function?
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26 views
How to merge a color multiband raster to a singleband color raster?
Background:
At Arc Desktop 10.6.1, I have an aerial photo tif image: 4-band (RGBA), 16-bit, unsigned integer. When displayed, it shows as natural-color. Here's a screen snip of just a small portion ...
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2answers
96 views
Palleted/Unique values rendering not displaying in QGIS
I have a multi-band raster in the form of a GeoTIFF. The raster contains 4 bands. Band 2 has 27 unique values ranging from 151 - 281. I would like to display each value discreetly using the 'Paletted/...
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0answers
8 views
Inner workings of GRASS reclassification on QGIS. How does it work with multiband rasters?
I have a 33 band raster layer I need to reclassify. I tried using GRASS module inside QGIS and it worked out fine, except that it outputs a raster with a single band. Which band of the 33 did it ...
1
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1answer
44 views
Calculating CIredEdge from Sentinel 2 composite image and adding as Band in Google Earth Explorer?
This is a follow-up question to Seeking Function to calculate red-edgeNDVI in Google Earth Engine?
I’ve added the redEdgeNDVI band to the image collection by mapping the function over the collection ...
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0answers
88 views
GDAL - Polygonize multiband raster and save pixel values of each band to corresponding attribute fields
I'm trying to polygonize 2 band raster(which was previously reclassified) and put values of each band into seperate attribute table column. Both bands overlap each other perfectly.
This piece of code ...
1
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1answer
60 views
Open a mutliband raster, edit values in one of the bands, and overwrite the raster using Python/Rasterio?
I have numerous multiband rasters (36 band) in which preserving the band order is important for future processing. One of the bands often contains erroneous data and I'd like to be able to change all ...
0
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1answer
46 views
Reclassifying raster with 33 bands in ArcMap?
I have a file geodatabase raster dataset with 33 bands. Each band is comprised of pixels with values 1-31. This represents 33 years of landuse cover data (with 31 different landuse classes). I'm ...
2
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2answers
189 views
Sum over Bands, Google Earth Engine
I have this real Big Bandet Image with 25000 Bands.
I want to Sum over the Bands, Pixelwise.
is there a Way to either :
-convert this ee.image, bandwise to an ee.ImageCollection
-Collapse all ...
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vote
3answers
660 views
Displaying single band from multi-band raster using QGIS
How can I extract a single band from multi-band raster in QGIS?
I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to ...
0
votes
1answer
68 views
Extracting single band from multiple band raster with PyQGIS?
I'm approaching naw in the script and I'm trying to select many multi-band files from a folder and extract a single band from the file, putting everything in an output folder with the single-band ...
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0answers
36 views
Split many multi-band files into single-band files using PyQGIS? [closed]
I wanted to know how to take many multi-band (RGB) files in a folder and extract a single band from each one, putting everything in an output folder with the single band transformed files.
How should ...
0
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0answers
32 views
Create a binary output raster using an algorithm of reflectance indices
I'm attempting to create a binary output raster in ArcMap based on an algorithm that uses three different reflectance index rasters I've already created from Landsat 5 data (mNDWI, NDVI, and EVI)the ...
2
votes
1answer
45 views
When building a VRT in QGIS, which input raster will be assigned which band number?
I don't understand how QGIS assigns the band numbers to the input rasters for a virtual raster catalogue. Unfortunately the bands in the compiled virtual raster catalogue will only have the names "...
0
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1answer
48 views
Retaining bands when pansharpening
I am currently pan-sharpening 8-band multispectral raster satellite images with single band panochromatic images.
I use Arcmap pansharpen raster function to achieve this.
The pansharpened result ...
1
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1answer
72 views
Visualization of 11-bit images
I'm trying to visualize a 11-bit TIFF image using matplotlib. To do it, I load the image using tifffile to obtain a 3D numpy array. Next, I have to down-sample the image because the array contains ...
2
votes
0answers
21 views
Multi/hyper-spectral file format that stores band information and meta-data
I usually use ERDAS LAN file format drivers to create a multispectral file that contains multiple rasters of different spectral bands. However, I can't find a way to store the information regarding ...
0
votes
1answer
870 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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1answer
2k views
How to visualize multiband imagery using rasterio?
How do I plot a satellite image using rasterio? I'm able to plot the individual bands but not the entire image. Is there a way to combine the separate R, G, B numpy arrays to create a standard RGB ...
0
votes
1answer
97 views
Finding min and max symbology for each band at command line using GDAL?
I would like to automate the process of getting the correct symbology min/max scale for each of the RGB bands via command line.
My use case is I am converting multi-band GEOTIFFs to JPG using the ...
0
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0answers
47 views
How to remove unnecessary bands from .sid file (keeping file format)
An ImageMosaic layer created from .sid data containing 5 bands has black areas where data is missing and setting transparency parameter in GeoServer does not help as error appears:
Error rendering ...
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1answer
338 views
Get colortable from three-band RGB raster (brick) with R
I have a three band RGB Raster Geotiff. I will provide the sample data below, but I'm guessing my problem should be solvable generically. I would like to turn this three band raster into a single band ...
0
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1answer
24 views
Adding Metadata of image as band when band has different projection than image? [closed]
I am trying to add system:time_start as a band in my image, so that when I mosaic the image collection, I retain the time value of each pixel. I am doing this in Landsat data. However, when I add the ...
4
votes
1answer
164 views
Importing multiple rasters into QGIS?
I am new to QGIS and trying to import two thousand geo pngs to create a raster map. each png is indexed 2-4 colours.
I have tried several things:
importing one by one works, as does to drag-and-drop ...
0
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0answers
88 views
Split multiraster into it's bands [duplicate]
Is it possible with QGIS or GDAL, to split a multiband raster into it's (spectral) parts? I need a single raster for every band of my intput multibandraster.
2
votes
1answer
46 views
Finding index of raster band with minimum or maximum value using ArcGIS Desktop?
I am using ArcGIS Desktop and I have a 6-band raster.
How do I output a single-band raster whose values are the band number (1,2,3,4,5 or 6) of which band in the original raster contain the maximum (...
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0answers
123 views
Keeping band names with gdal_merge.py?
I am using gdal_merge.py to merge different mosaic rasters each contains 20 bands with different names. However, when using gdal_merge.py the bands are renamed as band1, band2, ..., band20. How can I ...
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0answers
31 views
Resampling Landsat 5 TM bands to Hyperspectral data
I am using Indian Pines as the test hyperspectral data for image classification. I have already done classical methods like Gaussian Mixture , SVM and Random Forest classifier.
Now , to compare these ...
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0answers
152 views
Zonal statistics multiple band raster [closed]
I have a raster which is a yearly time series, it is created with 30 raster. It is saved then as a raster with multiple bands.
I am trying to calculate the zonal statistics of all the bands at once. ...
2
votes
2answers
455 views
Performing Radiometric Calibration of Sequoia Imagery?
I recently bought a used Sequoia camera and when I bought it, I was under the impression that the sun irradiance sensor and calibration plate would calibrate all my images in real time and I wouldn't ...
1
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1answer
292 views
How to edit the metadata for individual bands of a multiband raster, preferably with GDAL?
I created a multiband raster using the gdal_merge.py utility where each band represents a measurement from a different year:
gdal_merge.py -o stack.tif -ot float32 -separate -a_nodata -9999 DEM_2012....
0
votes
1answer
54 views
Identify spectral bands in a multispectral raster dataset
I'm trying to make an application to use on precision agriculture using gdal, and want to give it some flexibility to support imagery from different providers.
I've been looking around if there's a ...
0
votes
2answers
133 views
Multi-Spectral High Resolution Satellite images for flood events
I'm searching for multi-spectral high resolution satellite images for flood events.
I found a database of flood events from this link with dates and approxiamte locations (polygons) and I used the ...
1
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0answers
73 views
To create Categorical Heatmaps in Qgis do I need 1 heatmap or 1 per layer for each category
In Qgis 2.18 I have a points layer and can create a raster heatmap for all the points with singleband pseudocolour. If I wanted to show separate categories as different colour ramps do I need to ...
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0answers
128 views
Is a TIFF with a 1-byte/px band and RGBA(?) palette and a 1-byte/px Alpha band valid?
I have a process (see how to preserve color-interpretation when merging TIFFs and adding alpha band) which produces a TIFFs (download example image1 17.6 MB) with the following gdalinfo output:
...
-2
votes
1answer
34 views
Question about storage space (multispectral imagery vs. classified GIS rasters) [closed]
I have a quick question about storage space in ArcGIS.
When I have limited storage space, I am trying to figure out which one on average takes up more space: multispectral images or classified GIS ...
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0answers
33 views
Preparing multi class from multi value of raster data?
How can I prepare a specific band for each value in the below photo?
This raster file is a result of classification which I prepared in ENVI and for some edits I imported it in ArcGIS. after ...
0
votes
1answer
182 views
How to make black areas tranparent in GeoWebCache when using Geoserver to cache multi band imagery?
I am using Geoserver to cache 4 band (RGB,Alpha) satellite imagery.
The native projection of the imagery is NAD83 and I want them in WGS84, when I do the reprojection,using Arcmap, depending on the ...
1
vote
1answer
157 views
How to improve the displaying of a multiband raster in QGIS?
I have a multiband (WV3) satellite image that I'm displaying in false color (R=NIR, G=Red, B=Green) on QGIS 2.14. The quality of the results I'm getting via simply changing the band rendering in Layer-...
1
vote
4answers
1k views
Splitting RGB image into separate bands using Drone (DJI Phantom imagery)
Previously I have made marine habitat maps using multiband imagery and remote sensing techniques (e.g blue, green and red bands from satellite imagery).
I am now attempting the same process however ...
0
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0answers
375 views
Django app can't upload multi-band-image
I try to upload a TIFF raster image with 5 bands in Django app and I get error message in form : Upload a valid image. The file you uploaded was either not an image or a corrupted image. I am sure ...
