Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Top: Decomposition of a subband from image “boat” (left) into a hGMRF u (middle) and the corresponding multiplier field log z (right). Each image is rescaled individually to fill the full range of grayscale intensities. Middle: log marginal histograms of x, the estimated u and the estimated log z. Dotted lines correspond to Gaussian density of the same mean and variance. Bottom: 5 × 5 central non-zero regions for the hGMRF generating kernels of the estimated u and log z fields.
