Integration of Artistic Visual Elements in Packaging Design Based upon Pattern Recognition Technology

Table 4

Comparison between the improved threshold setting method and other denoising methods SSIM.

Noise variance	Noisy image	Mean filter	Median filter	Wiener filter	Low frequency filtering	Max min threshold	Fixed threshold is optimal	Improvement threshold
0.005	0.3537	0.7366	0.6694	0.7018	0.6299	0.7649	0.7911	0.8149
0.01	0.2489	0.6348	0.5526	0.5849	0.5714	0.7173	0.7549	0.7649
0.02	0.1817	0.5231	0.4317	0.4518	0.4879	0.7088	0.7176	0.7349