Energy-Driven Image Interpolation Using Gaussian Process Regression

Table 2

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

Image	Scale	Bilinear	GPR	ICBI	EGPR
Image 1	1	16.4437	15.8419	15.7032	15.6004
Image 2	1	21.1046	20.3410	19.1890	18.9614
Image 3	2	24.9225	24.8861	24.4329	24.4191
Image 4	2	31.0516	32.1427	30.6882	30.6118
Image 5	3	50.8161	44.8762	43.3017	43.2633
Image 6	3	45.9833	41.5720	39.0571	39.0412