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1. (WO2018106856) CONCURRENT IMAGE COMPRESSION AND THUMBNAIL GENERATION

Pub. No.:    WO/2018/106856    International Application No.:    PCT/US2017/065002
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Dec 08 00:59:59 CET 2017
IPC: H04N 1/21
H04N 1/411
H04N 1/00
Applicants: ADVANCED MICRO DEVICES, INC.
Inventors: THIKKIREDDY, Mahalakshmi
SATEESH, Lagudu
Title: CONCURRENT IMAGE COMPRESSION AND THUMBNAIL GENERATION
Abstract:
A first memory [105] stores values of blocks [115] of pixels representative of a digital image [110], a second memory [163] stores partial values of destination pixels in a thumbnail image [160], and a third memory [145] stores compressed images [140] and thumbnail images. A processor [120] retrieves values of a block of pixels from the first memory. The processor also concurrently compresses the values to generate a compressed image and modify a partial value of a destination pixel based on values of pixels in portions of the block that overlap a scaling window [420] for the destination pixel. The processor stores the modified partial value in the second memory and stores the compressed image and the thumbnail image in the third memory.