Questions tagged [hyperspectral-sensor]

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ENVI band math incorrect values

I'm attempting to calculate vegetation indices in ENVI 5.2 using level-2 AVIRIS data in band math. The indices I'm working with are Vogelmann Red Edge 2, normalized difference red edge, and red edge ...
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46 views

Google Cloud Image exporting blurry and small tiff images

I'm trying to export a image from GEE. For some reason, I'm getting a very small image size that is only 21x30 in dimensions. I'm trying to read it in Python and QGIS. Same problem in both platforms ...
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53 views

Area under the spectral curve?

There is an existing similar question here that I have tried but didn't give me what I need. I have an image with 20 spectral bands. How do I compute the area under the spectral curve that is ...
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98 views

6s atmospheric correction for hyper spectral data

I am trying to customize atmospheric correction for hyper-spectral data. Presently for Landsat I am using the i.atcorr GRASS GIS module. I want to know whether 6S atmospheric correction can be used ...
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104 views

When to rescale reflectance data to calculate vegetation indices

I'm attempting to calculate a number of vegetation indices using hyperspectral AVIRIS data in ENVI. Some of these indices are normalized, such as NDVI, whereas others are not, such as the Transformed ...
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48 views

white image while Trying to mosiac two hyperspectral data in ENVI

I am trying to mosaic two aviris-ng georefrenced hyoerspectral data but one of them become white in preview. so I am not able to mosaic the image.enter link description here error ink
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436 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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186 views

How to seperate class labels of hyperspectral images using R?

The image has different classes and different band, where the 220 bands are separated by the following code library(RStoolbox) library(raster) library(rgdal) library(caret) library(...
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126 views

Software for matching spectral end members with spectral library

I am working with Moon Mineralogy mapper(M3) - hyper-spectral data and i am trying to match the endmembers obtained from M3 with RELAB spectral library. I have tried spectral analyst tool in ENVI but ...
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9 views

Opened image appears corrupted

I have a hyperspectral image that I am fusing with a multispectral image (of the same scene) on Matlab. I also have a reference image of the final result in order to be able to compare and evaluate ...
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26 views

Is it possible to download the raw data (in .csv form) for EO-1 Hyperion via the Descartes Labs Platform?

I'd like to import it into a Python file to work with it. Also, for EO-1 Hyperion, since I believe its relatively newly uploaded data, will I need to "clean" the data myself?
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Where to find open tabular hyperspectral data for machine learning research?

Where can i find open datasets regarding " Wheat/Maize Leaf Spectra with Associated water content, Potassium and Nitrogen Measurements" for machine learning research i.e. hyperspectral ...
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21 views

Extracting hyperspectral pixel values to shapefile?

I have developed a workflow for a question that might have an easier answer. Say you have a hyperspectral image and a set of polygons overlapping the image. I want to extract all pixel values that ...
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12 views

Abundance maps sum to one constraint

I'm reading a paper titled "Coupled Nonnegative Matrix Factorization Unmixing for Hyperspectral and Multispectral Data Fusion" available here. There's a line that I'm quoting from the paper here ...
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24 views

How to extract a panchromatic image from hyperspectral image

I'm new to the Remote Sensing domain and I'm working on Hyperspectral Pansharpening problem. I'm referring to the paper, "Hyperspectral Pansharpening: A review" (link). They have provided the code for ...
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31 views

FLAASH produces weird peaks

I am applying FLAASH to atmospherically correct and convert to reflectance a hyperspectral image acquired by our airborne system. The problem is that FLAASH (using ENVI) outputs an image where all ...
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23 views

Calculate mean of a column in ENVI

I have raster that looks like this: I want to create from this raster new raster that will have only one row, when each pixel of this new row is mean value of the column. I know how to do this in ...
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33 views

Atmospheric correction for AVIRIS hyperspectral data

I have recently started with hyperspectral image processing and analysis. I am developing a python tool for processing AVIRIS hyperspectral data. I would like to know whether exists an open-source ...