Improved Multiscale Learning Dictionary Image Denoising Algorithm in Curved Wave Domain

Table 1

Scale coefficients and structural information of 256 × 256 images.

Layer	Scale	Direction	Coefficient of structure
Large scale	C(1)	1	32 × 32
Meso scale	C(2)	32 (4 × 8)		16 × 12	12 × 16	16 × 12	12 × 16
	C(3)	32 (4 × 8)		32 × 22	22 × 32	32 × 22	22 × 32
	C(4)	64 (4 × 16)		64 × 22	22 × 64	64 × 22	22 × 64
Small scale	C(5)	1	256 × 256