Re: [gdal-dev] Question on building multi band composite and going back to RGB GeoTiff

2024-04-22 Thread Raley, Nathan via gdal-dev
osite, do they appear to match the conversion you're assuming, or is there a different scaling (and possibly offset)? Cheers, Daniel On Mon, 22 Apr 2024, 15:20 Raley, Nathan via gdal-dev, mailto:gdal-dev@lists.osgeo.org>> wrote: I currently have a RGB geotiff composite image that has

[gdal-dev] Question on building multi band composite and going back to RGB GeoTiff

2024-04-22 Thread Raley, Nathan via gdal-dev
I currently have a RGB geotiff composite image that has a Byte datatype. I also have individual band images for R, G, Redge, and NIR that are UInt16 datatypes. Since I'm missing the Blue band from the individual bands, I was attempting to extract the blue band from the RGB composite image, sca

[gdal-dev] Merging Multi-Band Drone Imagery

2024-04-19 Thread Raley, Nathan via gdal-dev
I have individual TIFS from the different sensors on the drone. Currently, I have the R, G, NIR, and Redge bands. Is the correct method to merge these into a multi-band image that I can then view as NDVI or apply other algorithms against just to use: gdal_merge.py -separate R.TIF G.TIF NIR.TI