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4 votes
Accepted

Soil Adjusted Vegetation Index Values (MSAVI2) are Not Within Expected Range

This index has a slope correction so is not bound to a theoretical -1 to 1 range. Just for reference, here is the pseudo-code for the MSAVI2 that does not require the estimation of L. You may want to ...
Jeffrey Evans's user avatar
4 votes
Accepted

Does RapidEye level 3A imagery need any kind of preprocessing before applying classification?

You need good reflectance values if 1) you want to measure some biophysical characteristics of the surface or 2) you want to generalize your approach over large areas. The radiometric corrections ...
radouxju's user avatar
  • 49.7k
2 votes

Test pixel alignment in raster images

It sounds like you are looking for automated image registration. I would use something like ENVI (Automatic Image to Image Registration) or ERDAS Imagine (Autosync) to perform tie point generation ...
user2856's user avatar
  • 66.4k
1 vote

Python rasterio for saving GeoTIFF files and read in ArcGIS or QGIS

I noticed that you are not writing out the transform. I think that is the main problem. Here is how you can retrieve and write the information: with rasterio.open(filename) as src: dst_transform ...
snowman2's user avatar
  • 7,419
1 vote

Python rasterio save GeoTIFF files

I would recommend using a wrapper around rasterio for this task called rioxarray. Here is how you would do the calculations: #!/usr/bin/env python # coding: utf-8 import numpy as np import ...
snowman2's user avatar
  • 7,419
1 vote
Accepted

Performing Supervised Classification of Houses in Africa using ArcMap?

A quick search on Google threw up this blog, they describe their steps using ENVI. This paper discusses the spectral properties they used to separate out man made from natural. I think you need to ...
Hornbydd's user avatar
  • 43.7k
1 vote

Downloading images on Planet Explorer using free student account?

You can download basemap GeoTIFF images using this application: https://www.planet.com/basemaps/. Note that downloading will only work if your account has the right permissions. It's possible your ...
bosth's user avatar
  • 1,562
1 vote

PlanetScope and Rapid Eye: Asset Type and Band Classification from Planet Labs

There is no guarantee of similar numbers of PSOrthoTile items for a given geography and time range as there are REOrthoTiles. REOrthoTile history goes back much further than PSOrthoTiles. Also a lot ...
Frank Warmerdam's user avatar

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