Image scaling is not an easy task, especially when increasing the resolution. Quality of the scaled image is mainly dependent on the interpolation method by means of which the synthesis is performed for each pixel. The Lanczos methods and, a little lagging behind it on quality of the image, a method of bicubic interpolation are recognized as the qualitative methods of interpolation. Complexity and specifics of these interpolation algorithms complicates their use in the FPGA technology.
UpScaler IP Core implements the original algorithm. The quality is not inferior to the interpolation parameters of bicubic method but the complexity of the algorithm is close to linear interpolation.
UpScaler IP Core is intended for use in systems of display of video (wall video, displays, video projectors) but also can be applied in transcoding systems for media content preparing.