Hello,
i wonder if the rgb-his and vice versa works with more than 8-bit images. I found in the mail archive that it should be fixed in 6.4 but it doesn't work in grass 6.4.2 RC2 nor 7.
The aim is to pan sharpen quickbird images.yes, it can be done by using brovey transformation. But i think rgb-his/his-rgb should also work without transforming the image to 8-bit before.
greetz,
christian