CPC G06T 9/00 (2013.01) [G06T 3/40 (2013.01); H04N 19/105 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/186 (2014.11)] | 20 Claims |
1. An image compression method comprising:
receiving pixel values of a plurality of target pixels of image data on which compression is to be performed, and reference values of reference pixels to be used in compression of the target pixels;
determining an averaging direction among a first direction and a second direction, the second direction being different to the first direction;
averaging pixel values for each of at least two pairs of target pixels adjacent to each other in the averaging direction among the plurality of target pixels to generate at least two average values;
generating balance information comprising compensation values to be applied to the at least two average values based on the reference pixels; and
generating a bitstream comprising the at least two average values, the balance information, and averaging direction information.
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