Patent ID: 11889054
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The method of claim 1, wherein the first plurality of pixels (“px”) comprises pixels p0, p1, p2, p3, p4, p5, p6, and p7,
wherein the second plurality of pixels (“qx”) comprises pixels q0, q1, q2, q3, q4, q5, q6, and q7,
wherein the first reference value (“refP”), the second reference value (“refQ”), and the third reference value (“refMiddle”) are obtained as refP=(p7+p6+1)>>1, refQ=(q7+q6+1)>>1 and refMiddle=((p6+p5+p4+p3+p2+p1+2*(p0+q0)+q1+q2+q3+q4+q5+q6)+8)>>4 and wherein the filtered values are calculated as:

p(x)=(fInt(x)*refMiddle+(64−fInt(x))*refP+32)>>6; and

q(x)=(fInt(x)*refMiddle+(64−fInt(x))*refQ+32)>>6, and

wherein fInt(0) is equal to 59, fInt(1) is equal to 50, fInt(2) is equal to 41, fInt(3) is equal to 32, fInt(4) is equal to 23, fInt(5) is equal to 14 and fInt(6) is equal to 5, p(x) is a filtered version of px and q(x) is a filtered version of qx, where x ranges from 0 to 6.