I would presume that Javier is intending to use one of the several Complex data types that GDAL supports natively - CInt16, CInt32, CFloat32, CFloat64.
It seems that VRTs appear to have the capability to create a complex band from two separate bands, and vice versa - the "complex", "imag", and "real" pixel functions for "Derived Bands": https://gdal.org/drivers/raster/vrt.html#default-pixel-functions Cheers, Daniel On Sat, 27 Jul 2024 at 12:35, Greg Troxel via gdal-dev < gdal-dev@lists.osgeo.org> wrote: > Javier Jimenez Shaw via gdal-dev <gdal-dev@lists.osgeo.org> writes: > > > I have to create a complex number (real and imaginary part) image out of > > two "normal" images or bands. > > How can I do it? > > I don't know, but it would be great if you explained what that means. > I did a quick web search and didn't find anything. > > There is multispectral where there are N pixel values for each x/y > position, like RGB or many more bands. But I am almost certain you > don't mean that. > > Complex implies a magnitude and phase of a return signal and this makes > me think about LIDAR, except the wavelength is tiny compared to features > and ambiguity resolution seems infeasible. > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/gdal-dev >
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