Patent ID: 11924416
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An image processing device configured to apply a plurality of disparate digital image processing filter operations to image data comprising input samples, the image processing device comprising:
processing circuitry;
memory containing instructions executable by the processing circuitry whereby the image processing device is operative to:
partition the image data into one or more partitions; and
for each partition of the image data:
apply a first digital image processing filtering operation to the partition of the image data to generate one of first filtered image data and first delta data comprising a difference between the image data and the first filtered image data;
apply second digital image processing filtering operation to the partition of the image data to generate one of second filtered image data and second delta data comprising a difference between the image data and the second filtered image data;

combine the outputs of the first and second filtering operations for the partition to generate combined filtered image data by, for each partition of image data:
if the first filtering operation generates first filtered image data, calculating first delta data as the difference between the image data and the first filtered image data;
if the second filtering operation generates second filtered image data, calculating second delta data as the difference between the image data and the second filtered image data; and
summing the image data, the first delta data, and the second delta data; and

clip the combined filtered image data for the partition.