Anisotropic diffusion filter does not work with ct scan that has pixel type of 32 bit signed integer

Hi Team, I was trying to denoise CT can image with anisotropic diffusion and I get unsupported pixel type error. I switched to Curvature flow but any ways I can make it work with Anisotropic diffusion filter? Thanks Jiten

CT Scan Image information:
image size: (512, 512, 788)
image spacing: (0.976562, 0.976562, 1.25)
pixel type: 32-bit signed integer
number of channels: 1