Why do Landsat 8 grayscales have a range of (0, 2^16-1) while the screen colors are (0, 2^8-1)?
Hiking & ActivitiesOkay, so you’ve ever wondered why satellite images, like the ones from Landsat 8, look so incredibly detailed compared to, say, a photo on your phone? It’s all about how the data is encoded, and it’s a pretty fascinating story. Basically, Landsat 8 images use a much wider range of values to represent shades of
Opening ArcGIS webmap json file in QGIS
Hiking & ActivitiesCracking the Code: Getting Your ArcGIS Webmaps into QGIS So, you’re a QGIS enthusiast, but you’ve got some ArcGIS webmaps you need to wrangle? It’s a situation many GIS folks find themselves in. ArcGIS and QGIS are the big players in the GIS world. ArcGIS, with its slick, proprietary feel from Esri, and QGIS, the
Zonal Statistics As Table with more than one zone?
Hiking & ActivitiesZonal Statistics As Table: Slicing and Dicing Raster Data by Zone Ever wondered how to quickly summarize a bunch of raster data based on specific areas? That’s where Zonal Statistics as Table comes in – it’s like having a superpower in the GIS world. This tool lets you crunch those raster values within defined zones
Extracting coordinates of segments in raster from TIFF image?
Hiking & ActivitiesDecoding Raster Images: A Human’s Guide to Extracting Segment Coordinates from TIFFs Ever stared at a TIFF image, knowing there’s valuable location data locked inside, but feeling lost on how to actually get it out? You’re not alone. TIFFs, especially GeoTIFFs, are workhorses in fields like remote sensing and GIS, packing a ton of geospatial
Resampling hyperspectral data to Landsat 5 TM bands
Hiking & ActivitiesDiving Deep: Making Hyperspectral Data Play Nice with Old-School Landsat 5 TM Hyperspectral imaging? Think of it as seeing the world in a million shades of color, not just the handful your eyes can detect. It grabs data across a huge range of the spectrum, giving you super-detailed spectral info for every. single. pixel. i.
Function access to surrounding object’s variable
Hiking & ActivitiesFunction Access to Surrounding Object’s Variables: Getting Cozy with Scopes Ever wondered how a function “knows” about stuff happening around it, inside the object it lives in? It’s a pretty crucial concept in programming, especially when you’re knee-deep in object-oriented code. This ability—where functions can grab variables from their surrounding environment—lets us write code that’s