GPU Pro 6

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High Dynamic Range

Computational Photography

on Mobile GPUs

Simon McIntosh-Smith, Amir Chohan,

Dan Curran, and Anton Lokhmotov

4.1 Introduction

Mobile GPU architectures have been evolving rapidly, and are now fully pro-

grammable, high-performance, parallel-processing engines. Parallel programming

languages have also been evolving quickly, to the point where open standards such

as the Khronos Group’s OpenCL now put powerful cross-platform programming

tools in the hands of mobile application developers.

In this chapter, we will present our work that exploits GPU computing via

OpenCL and OpenGL to implement high dynamic range (HDR) computational

photograp ...