Energy-Driven Image Interpolation Using Gaussian Process Regression

Table 1

Comparison of PSNR for the four interpolation methods when applied to test images.

Image	Scale	Bilinear	GPR	ICBI	EGPR
Image 1	1	32.9940	33.2792	33.3456	33.3986
Image 2	1	30.6314	30.7861	31.3684	31.4594
Image 3	2	29.5738	29.4194	29.7173	29.7213
Image 4	2	27.7717	27.4767	27.8485	27.8625
Image 5	3	23.4038	24.4366	24.7153	24.7171
Image 6	3	24.3122	25.1477	25.6880	25.6909