image-processing

Inverse filtering, and why it's unstable

taught

Dividing the degraded spectrum by the PSF's own frequency response recovers the clean image exactly in theory, but amplifies noise without bound wherever that response is small.

Taught in

Inverse filtering, and why it's unstable
Digital Image Processing

Requires

the-degradation-model-and-the-point-spread-function required

Required by

Wiener filtering required

Local knowledge map

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