Imagery & point clouds
Data that arrives as measurements of a surface rather than as features on it.
Topics in Imagery & point clouds
2 topics, 31 guides. Each topic page groups the concepts, the how-to guides and the fixes for that subject.
Every guide in Imagery & point clouds
Grouped by topic. A guide that spans two topics appears under both.
Satellite imagery 17 guides
- Spectral Bands Explained: What Satellite Imagery Actually Measures spectral bands explained
- Radiometric Levels Explained: DN, TOA and Surface Reflectance radiometric levels explained
- Sentinel-2 or Landsat? Choosing a Satellite Imagery Source sentinel 2 vs landsat explained
- How to Load Sentinel-2 Bands into Python as an Analysis-Ready Array load sentinel2 bands python
- Satellite Bands Have Different Shapes or Do Not Align satellite bands do not align
- How to Resample Satellite Bands to a Common Grid resample satellite bands python
- Spectral Indices Explained: NDVI, NDWI and What They Assume spectral indices explained
- How to Calculate NDVI from Sentinel-2 in Python calculate ndvi python
- NDVI Values Are Above 1 or Below −1: How to Fix It ndvi values out of range
- Cloud Masking Explained: QA Bands, Scene Classification and What They Miss cloud masking explained
- How to Mask Clouds in Sentinel-2 Imagery with Python mask clouds sentinel2 python
- How to Build a Cloud-Free Composite from Many Satellite Scenes cloud free composite python
- My Composite Has Holes, Stripes or Grey Patches composite has holes or stripes
- How to Extract a Vegetation Index Time Series for a Polygon ndvi time series polygon python
- How to Detect Change Between Two Satellite Images in Python detect change satellite images python
- How to Classify Land Cover from Satellite Imagery in Python classify land cover python
- How to Turn a STAC Search into an xarray Data Cube stac to xarray cube python
LiDAR & point clouds 14 guides
- LiDAR Point Clouds Explained: Returns, Classes and Intensity lidar point clouds explained
- LAS, LAZ and COPC Explained: How Point Clouds Are Stored las laz copc explained
- How to Read a LAS or LAZ File in Python with laspy read las laz python laspy
- A LAZ File Will Not Open in Python laz file will not open
- laspy Returns the Wrong Coordinates: Scale, Offset and CRS laspy wrong coordinates
- Point Density Explained: What Resolution a Point Cloud Supports point density explained
- How to Filter a Point Cloud by Class and Return Number filter point cloud class return
- How to Clip and Tile a Point Cloud in Python clip tile point cloud python
- DSM, DTM and CHM from LiDAR: How Each Surface Is Derived lidar surfaces dsm dtm chm explained
- How to Create a DTM from LiDAR Ground Points in Python create dtm from lidar python
- My LiDAR DTM Has Holes, Spikes or Terraces lidar dtm holes and spikes
- How to Create a Canopy Height Model from LiDAR canopy height model python
- How to Rasterise a Point Cloud to a Grid in Python rasterise point cloud python
- How to Measure Building Heights from LiDAR in Python building heights from lidar python