ABSTRACT
Faithful tone and color retargeting amongst different devices is of vital importance for many scientific and industrial applications. Today, a typical imaging system includes several devices that may differ in the color gamut and dynamic range that they can capture and either reproduce or visualize. An image can be captured with a digital camera and afterwards either visualized or printed with the typical result that its tone and colors are visibly different from the original captured data. Moreover, the technology limitations of the existing capturing and visualization devices may limit the quantity of digital information that we can capture and visualize. In the last years, a typical problem that has gained a lot of interest is the capture, manipulation, and visualization of the HDR luminance and the wide color gamut available in the real-world. Typically, HDR images are captured and then manipulated to preserve their tone and color information when visualized on traditional SDR displays. The advent of HDR images has introduced a series of complex issues that need to be addressed for using them in the traditional color retargeting pipeline for SDR images. This involves adapting the current technology that has been used for addressing the tone and color retargeting in the SDR imaging system. We will start by presenting the traditional color rendering pipeline for SDR images, and show how it can be adapted for HDR images. Existing techniques in the field will be presented and discussed covering all the steps of the extended color retargeting pipeline.
