Solve a part of Total variation model by FFT?

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fahimeh zakeri
fahimeh zakeri 2014-11-26
I use a Bergman algorithm in TV norm model for denoising and get to this model:
landa0*(c-b0)+landa1*(Dx(b1-vx)+Dy(b1yx-vy))-landa2(Dxx(b2xx-wxx)+Dyy*(b2yy-wyy)+2*Dxy*(b2xy-wxy)=landa0*u-landa1*((Dx(Dx(u))+Dy(Dy(u))+landa2(Dxx(Dxx(u))+Dyy(Dyy(u))+Dxy*Dxy(u))
all variable in right side is known and we want to solve for u by FFT.
How Can I impelement it?

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