Parallel decoding jpeg images

Abstract

Devices, systems and methods are disclosed for preprocessing JPEG images to enable parallel decoding and for parallel decoding of JPEG images. A JPEG image may be preprocessed to enable parallel decoding by embedding restart (RST) markers within the JPEG data and embedding information in an application (APPn) marker, which may be included in a header associated with the JPEG data. Using the RST markers and information included in the APPn marker, a device may separate the JPEG data into sections and decode the sections in parallel using multiple cores to reduce a time between acquiring and rendering the JPEG image. The parallel outputs may be stored to identified locations in a buffer so that the finished outputs are sequentially stored as a complete decoded JPEG image.