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Table 1 The Sd parameter for noise-free image and three different noise power

From: Using BayesShrink, BiShrink, Weighted BayesShrink, and Weighted BiShrink in NSST and SWT for Despeckling SAR Images

 

Sd

Free noise

\( {\sigma}_N^2=0.05 \)

\( {\sigma}_N^2=0.1 \)

\( {\sigma}_N^2=0.15 \)

Barbara

SWT

0.1864

0.1936

0.1969

0.1986

NSST

0.1563

0.1760

0.1812

0.1843

Lena

SWT

0.1731

0.1913

0.1950

0.1969

NSST

0.1366

0.1759

0.1813

0.1841