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Questions tagged [multi-band]

Raster data with more than one band/channel of information. Also known in imagery as multi or hyper spectral.

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1answer
41 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
53 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 ...
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1answer
28 views

Find out the min and max symbology for each band at the command line

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 ...
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0answers
21 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
44 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 ...
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1answer
18 views

When I add the Metadata of an image as a band, the band has different projection than the image

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
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1answer
58 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 ...
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0answers
21 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.
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1answer
21 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
32 views

13 band image acquired from Google Earth Engine not displaying well in ArcGIS

The image is displaying all dark I tried to set it the three band of true color but It remains dark The image is acquired from Google Earth Engine, is a Sentinel 2A image which I did not make ...
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0answers
17 views

Is there a way to classify a satellite image in arcgis using all bands for more accurate classification?

-I want to classify a Sentinel 2A image which has 12 bands and a Landsat 8 satellite image wich has less bands. -How do I overcome the mountains shade? -In theory there would be 5 classes if you ...
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0answers
40 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
13 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
31 views

Identify bands for calculated indexes when you have a raster with 4 bands in QGIS

I want to calculate a few indexes but when I merge the bands, they separate in @1,@2,@3 and @4. How can I know which of these are the green, red, red edge and NIR ones?
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0answers
49 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. ...
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2answers
182 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 ...
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1answer
121 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....
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1answer
34 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
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1answer
84 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 ...
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0answers
40 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
75 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: ...
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1answer
25 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
28 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 ...
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1answer
132 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 ...
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1answer
95 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-...
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4answers
503 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 ...
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0answers
289 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 ...
2
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1answer
111 views

Duplicate Layers in eCognition

I am attempting to use eCognition Developer to segment and classify 5-band UAS imagery. When I go to create a new project in eCog and input my imagery (individually selecting the five .tif files), it ...
4
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2answers
766 views

Converting 4-band TIF to PNG while keeping all 4 bands?

I have a number of aerial photos containing both RGB and a near-infrared band. The images are in TIF-format, however I need to convert them to PNG without losing any of the bands. I have tried ...
0
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1answer
429 views

Read BigGeoTIFF multiband GDAL using Python

I'm trying to read\load BigGeoTIFF multi-band raster (>4GB), using GDAL module in python but I can't seem to make it. At first the error was that BigGeoTIFF format is not supported by GDAL and libtiff ...
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2answers
101 views

How do I select from a multiband raster?

I have a multiband raster (RGB) and I'd like to select out the watercourses to create a new raster. Examining the data it seems I can do so by selecting blue > 100, Red <100, Green <100. Is ...
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0answers
503 views

Adding alpha band to a TIFF image drastically increases its filesize? [duplicate]

I'm using gdalwarp -dstalpha src.tif dst.tif to add alpha channel to an 8-bit unsigned image with 3 bands. The initial size of the image is 300 mb, but adding an alpha band increases it to 1980 mb, ...
2
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2answers
557 views

Creating visually standardized RGB images from Sentinel-2 data

I want to create "visually appealing" RGB images from Sentinel-2 L1C data in a standardized manner. Obviously, this starts with extracting the bands 4, 3, and 2, which correspond to the Red, Green, ...
1
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0answers
31 views

How to preserve old range of values clipping multi-band raster in QGIS?

Old raster: New one after use of "clipper" or GDAL clipping: Is it any other (faster) method than "save/load style" to preserve previous values of raster? I'm running QGIS 2.14.
2
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1answer
598 views

How to extract ALL bands from multiband raster in ArcGIS?

I have seen many questions about how to extract a singe band from a multiband raster in ArcGIS, but how do you extract ALL of the bands and save them as separate tifs? I want to automate this process ...
4
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1answer
610 views

Display multiband raster in QGIS

I have a multiband raster (3 bands) that I want to display in QGIS. I can display each band as a singleband without trouble, but if I try display from multi-band (properties in style) I get very ...
3
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1answer
57 views

Ordering of bands in ArcCatalog

I have a multi-band GeoTIFF with >10 bands, for example 11. I would have expected these to be shown in an ordered numerical sequence from 1 to 11. However, ArcCatalog 10.3.1 wants to show the string ...
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0answers
45 views

Automate band combination process

Everytime I get a new scene, I have to build a specific number of band combinations. It's almost 50 band combinations. I have to do it for almost every scene, over and over. Is there any automatic ...
3
votes
1answer
154 views

Unexpected argument grid_dist_x using PDAL

I'm trying to convert a .las file to a DTM/DEM using PDAL, but having the issue of multiple bands instead of one. I went through Generating a DTM and writers.gdal but it prompts an error message: ...
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0answers
49 views

Calculating bands with different resolution

I'm doing a research on estimation of land surface temperature using Landsat 5 and 8. I use NDVI to calculate the emissivity value. NDVI is calculated using visible band and for LST uses a thermal ...
1
vote
1answer
819 views

Getting multiband raster's min and max values with Python in QGIS?

Is there anyway to have access to minimum and maximum pixel values from multi-band raster using Python in QGIS? This is QGIS and I loaded 3 different bands as rasters. If there's a way to have access ...
2
votes
1answer
664 views

NIR, R, G, B multiband (4 Band) GeoTIFF gdal_translate colorinterp issues

I originally create a 5 band image (NIR, R, G, B, NDVI) from Sentinel 2 Sat imagery that has valid data in the bands to work with. I'm stacking them together with rio stack command. rio info 5band....
5
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2answers
1k views

Is it possible to read in specific bands from a multi-band raster with gdal or rasterio?

I wasn't able to find an answer to this after searching the help files and the forums. I have a (virtual) raster with 60 bands, where each band represents a realization in time (think of frames of a ...
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0answers
346 views

Database of labeled hyperspectral imagery

Are there any datasets of hyperspectral imagery that can be used for AI training and classification, comparable to ImageNet? The Universitat de Valencia has one listed on their site, HyperLabelMe, but ...
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2answers
177 views

After Merging Tiff Files the merged file is black and gray

I have 24 Tiff Rasters which I want to combine into one TIFF file but when I merge them the color of the new TIFF is black and gray. The render type of the new TIFF is singleband gray but if I change ...
1
vote
1answer
562 views

Build reflectance maps with Python and GDAL

I would like know how to calculate a reflectance map for each band (RGB) in an image. The imagery was captured using a Ricoh GRII from a Fixed wing UAV, the UAV does not have an irradiance sensor ...
2
votes
1answer
1k views

Save multiband raster with gdal

I would like to know how to export a GeoTiff image with n bands in Python. I have a function but it only works with one band raster. def save_raster ( output_name, dataset, raster_data, driver ,...
6
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1answer
4k views

Multiband to single band raster

Is there a tool that is able to transform a multi-band image to single band rasters? I usually use the raster calculator within the modeler to do that.
0
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1answer
150 views

Why is ArcPy script looping through bands slow?

I am working on a single tiff with over 20k bands, each representing daily temperature, and I'll be extracting and preforming simple raster math on roughly 3500 of the bands. The problem I'm running ...
2
votes
1answer
67 views

Updating all bands of PostGIS raster in one function (like st_setvalues) with one geomval[] set?

I have ~700 raster tables in postgres. Some have an expanse the size of California. All the tables are tiled and share tile IDs. Given a geomval set, I need to make updates to each table. Here, I ...