Abstract:
Rescaling or reconstructing of a digital image may be accomplished by directional interpolation, so that interpolation is done in the direction perpendicular to the gradient--the direction in which the change in pixel values is the smallest. Each pixel is generated by interpolation in the output image as a weighted average of nearby pixels, in which the weighting is done in the direction of the gradient. The interpolation is accomplished with an adaptive filter that has an elliptical frequency response determined by the direction of the gradient. The filter uses filter coefficients that are a function of the direction. Rather than storing coefficients for each of several directions, three filter coefficients are stored―one set for non-directional filter, one for one direction such as 45 degrees, and another for another direction such as 135 degrees. A blending of the filter coefficients is used.
Abstract:
The present disclosure relates to methods and devices for display processing including an apparatus, e.g., a DPU. The apparatus may receive a plurality of panel measurements for a display panel, each of the plurality of panel measurements associated with a plurality of subpixels in the display panel. The apparatus may also determine, upon receiving the plurality of panel measurements, at least one offset for one or more subpixels of the plurality of subpixels associated with each of the plurality of panel measurements. The apparatus may also store, upon determining the at least one offset for the one or more subpixels, the at least one offset for the one or more subpixels associated with each of the plurality of panel measurements.