Research Article

Shift Unitary Transform for Constructing Two-Dimensional Wavelet Filters

Table 1

The coefficients of a nonseparable orthogonal low-pass wavelet filter.

𝑏 ( 𝑖 , 𝑗 ) 𝑗 = 0 𝑗 = 1 𝑗 = 2 𝑗 = 3

𝑖 = 0 −0.020275 −0.054787 0.243250 0.657306
𝑖 = 1 0.024899 0.067282 0.198076 0.535237
𝑖 = 2 −0.025190 0.009322 0.302214 −0.111841
𝑖 = 3 0.030935 −0.011448 0.246090 −0.091071