Probably the easiest thing would be to just extend the code in Images and
submit a PR (the code is not very complicated).
However, you can do very fancy things with MapInfo objects. This is untested,
but it should be close:
immutable TwoColormap <: MapInfo
colormap1
colormap2
end
function map!(dest, mapi::TwoColormap,
src::Tuple{AbstractArray,AbstractArray})
img1, img2 = src
for I in eachindex(dest)
dest[I] = clamp(RGBmapi.colormap1[img1[I]] + mapi.colormap2[img2[I]])
end
dest
end
--Tim
On Thursday, November 12, 2015 07:23:07 AM Tobias Knopp wrote:
> Hi,
>
> I am using the OverlayImage type from the Images.jl package to overlay two
> different grayscale images (tomographic data).
> If I understand it correctly OverlayImage is restricted to colormaps that
> go from black to a certain RGB value. Has anybody an idea how this could be
> extended to Colormaps provided by Colors.jl?
>
> So my need is:
> Input: two 3D datasets (FloatingPoint) + two Colormaps + WindowWidth
> WindowLevel for each
> Output: Combined 3D dataset as RGBA values.
>
> Thanks
>
> Tobias
