Maximum Entropy Deconvolution

Maximum
Entropy Deconvolution ("MaxEnt")
is a sophisticated image reconstruction
method used to increase spatial resolution in an
image. Maximum Entropy uses information stored in
the Signal-to-Noise Ratio (S/N) to perform an
optimal Deconvolution, thus increasing spatial
resolution. MaxEnt is superior to spatial sharpening
methods such as crispening filters or unsharp
masking because it does not sharpen the noise. Maximum Entropy
Deconvolution can sharpen visible features
and reveal details that are otherwise difficult
to detect no matter how you tweak the image display. MaxEnt
can also be used to recover information from less
than optimal, slightly out-of-focus images.