Re: [gdal-dev] Phase image overlay

2009-01-19 Thread Antonio Valentino
Il giorno Mon, 19 Jan 2009 20:37:17 +0530 "Chaitanya kumar CH" ha scritto: > Dear Antonio, > > I too want to know how to add transparency to a band. Please let me > know when you found a way. By the way, did you try adding an alpha > value to the phase file using a GDAL virtual file. > > Regard

[gdal-dev] Phase image overlay

2009-01-19 Thread Antonio Valentino
Hi list, I have two (8 bit) geo-tiff files containing the amplitude and phase of a complex dataset. Amplitude is grayscale and phase has a "jet" color-table associated. I would like to produce a single file with the phase transparently overlayed on the magnitude. Which is the best way to do it?