Table 2: Experiment results on texture-rich natural images in Figure 1 by three methods (SR = 38.56%, 𝑠 = 1 6 , 𝑝 = 2 ).

Image no.MethodExp. Result
SNRRel. err.Iter

Figure 1(d)HQRCSparET30.15610.20%67
Figure 1(e)HQRCSparET36.28240.14%67
Figure 1(f)HQRCSparET46.42620.57‰65