An Analysis and Implementation of the HDR+ Burst Denoising Method
This is an incremental contribution, offering an accessible implementation of an existing method for researchers and developers in computational photography.
The paper analyzes and implements Google's HDR+ burst denoising method, which uses multiple raw images to produce visually pleasing results for smartphone cameras, and provides an open-source Python version with a demo.
HDR+ is an image processing pipeline presented by Google in 2016. At its core lies a denoising algorithm that uses a burst of raw images to produce a single higher quality image. Since it is designed as a versatile solution for smartphone cameras, it does not necessarily aim for the maximization of standard denoising metrics, but rather for the production of natural, visually pleasing images. In this article, we specifically discuss and analyze the HDR+ burst denoising algorithm architecture and the impact of its various parameters. With this publication, we provide an open source Python implementation of the algorithm, along with an interactive demo.