Photographic tone reproduction for digital images
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
High Dynamic Range Imaging: Acquisition, Display, and Image-Based Lighting (The Morgan Kaufmann Series in Computer Graphics)
Acceleration of High Dynamic Range Imaging Pipeline Based on Multi-threading and SIMD Technologies
ICCS '08 Proceedings of the 8th international conference on Computational Science, Part I
The Frankencamera: an experimental platform for computational photography
ACM SIGGRAPH 2010 papers
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The high dynamic range (HDR) photography offers significantly better quality than conventional digital images stored in low dynamic range (LDR) formats. We replace the standard image capture pipeline in mobile phones with an HDR acquisition pipeline based on the multi-exposure method. We discuss limitations of the mobile platforms that affect architecture of the proposed pipeline, then implementation of the pipeline on a smartphone with ARMv6 processor (Nokia N8) is described. We report timings for fundamental HDR algorithms and discuss programming techniques that speed-up execution and reduce RAM memory usage. The results compare favourably to proprietary iPhone 4 HDR implementation and show that the HDR pipeline can be efficiently implemented on existing camera phones using high-level APIs and no dedicated hardware.