Abstract
The pixels in the conventional image systems are located in lattice places, and the lattice placement of pixels causes the jaggy in the image, which often cause the severe defect in the image quality. The conventional approaches to overcome this jaggy problem are such as the increased number of pixels and anti-aliasing, however, the number of pixels is limited by the physical pixel size and the quantity of the image information, while the anti-aliasing intrinsically causes the blurred image. The authors have been proposing and evaluating the image systems with pseudorandom pixel placement to decrease the effect of the jaggy. In this report, we discuss the comparison of the subjective evaluation index of the jaggies, which is the final goal of the image quality evaluation, with the objective evaluation index of the jaggies, which can be calculated from the image information. We also discuss the jaggy elimination effect by pseudorandom pixel placement by using these two evaluation indexes.
