Comparison between Square Pixel Structure and Hexagonal Pixel Structure in Digital Image Processing
Illa Singh, Ashish Oberoi · 2015
In image processing, for most of the applications; the images are displayed using square pixels. The various improvements in technologies like CCD and increasing processing capabilities of graphic devices give arise to hexagon pixels which are becoming attractive for various practical applications. Hexagon grid is an alternative tessellation scheme besides the conventional square grid for sampling and representing images. Hexagon pixel is advantageous over square pixel because of its higher symmetry, higher sampling efficiency, equidistance, greater angular resolution, less aliasing effect, consistent connectivity. Also one of the most important advantages of using hexagon pixel is its resemblance with the arrangement of photoreceptors in the human eye and with such an advantage the number of pixels required is less. So, in this paper, quality representation of images which having square pixel structure are compared with images having hexagonal pixel structure.