kunzaatko / TransferFunctions.jl / 17112291933

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100.0
/ext/ImageCoreExt.jl
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module ImageCoreExt
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using ImageCore, FFTViews, FFTW
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using TransferFunctions
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function TransferFunctions.corrfft(A::AbstractArray{CT}, krn) where {CT<:Colorant}




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    Av, dims = channelview_dims(A)




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    kernrs = kreshape(CT, krn)




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    B = rfft(Av, dims)




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    B .*= conj!(rfft(kernrs, dims))




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    Avf = irfft(B, length(axes(Av, dims[1])), dims)




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    colorview(base_colorant_type(CT){eltype(Avf)}, Avf)




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end










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channelview_dims(A::AbstractArray{C,N}) where {C<:Colorant,N} = channelview(A), ntuple(d -> d + 1, Val(N))




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channelview_dims(A::AbstractArray{C,N}) where {C<:ImageCore.Color1,N} = channelview(A), ntuple(identity, Val(N))




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function kreshape(::Type{C}, krn::FFTView) where {C<:Colorant}




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    kern = parent(krn)




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    kernrs = FFTView(reshape(kern, 1, size(kern)...))




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end










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kreshape(::Type{C}, krn::FFTView) where {C<:ImageCore.Color1} = krn




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end
























    

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