Wide dynamic range (WDR) image tone mapping is in high demand in many applications like film production, security monitoring, and photography. It is especially crucial for mobile devices because most of the images taken today are from mobile phones, hence such technology is highly demanded in the consumer market of mobile devices and is essential for a good customer experience. However, high-quality and high-performance WDR image tone mapping implementations are rarely found in the mobile-end. In this paper, we introduce a high performance, mobile-end WDR image tone mapping implementation. It leverages the tone mapping results of multiple receptive fields and calculates a suitable value for each pixel. The utilization of integral image and integral histogram significantly reduce the required computation. Moreover, GPU parallel computation is used to increase the processing speed. The experimental results indicate that our implementation can process a high-resolution WDR image within a second on mobile devices and produce appealing image quality.

翻译：在电影制作、安全监控和摄影等许多应用中,广动态图像音调映像(WDR)的需求量很大。对于移动设备来说,这尤其重要,因为今天拍摄的大多数图像来自移动电话,因此在移动设备的消费市场中,这种技术是高要求的,对于良好的客户经验来说是必不可少的。然而,在移动终端中很少发现高质量和高性能的WDR图像音调映像执行。在本文中,我们引入了高性能、移动终端的WDR图像音调映像实施。它利用多个可接收域的音调映结果,计算出每个像素的合适值。使用集成图像和集成直方图大大降低了所需的计算速度。此外,GPU平行计算用于提高处理速度。实验结果表明,我们的实施可以在移动设备一秒内处理高分辨率的WDR图像,并产生令人感兴趣的图像质量。