There are two things that need to happen to transform SDR video into the HDR domain. Thus one must ask the question, should SDR content be converted to HDR in the scenarios that it could? Even if an SDR source file has been successfully converted to the HDR specifications, it might still look exactly the same, depending on the technique applied, so let’s take a closer look at what needs to be done and the available options to create noticeable and worthwhile upconversions. Existing compression artifacts or camera noise have the potential to be magnified and become more noticeable when upconverted, requiring extra “clean-up” pre- or post-processing steps. There’s also the old adage “quality in, quality out” or the less optimistic “garbage in, garbage out” meaning that even with the best solutions, the quality of the source material is going to impact the quality of the final product. So what do you do with all of your existing SDR content? Can it be converted to HDR? In a few ways, yes, though results will vary depending on the chosen approach. SDR vs HDR – to Convert or not to Convert, that is the question The reality though, is that HDR has only been commercially available since 2014 when Dolby launched their Dolby Vision format, but even with that, most contents wasn’t being produced with end-to-end HDR distribution in mind until fairly recently, meaning the majority of videos out there are still stuck in the past with the limitations of SDR. As HDR support is gradually becoming ubiquitous in the general streaming space, it’s clear that OTT services need to provide HDR content to remain competitive as consumer technology reaches resolution saturation, and begins to focus on pixel depth in its stead. When an organization makes the inevitable switch from SDR vs HDR, it becomes clear that the video quality of experience (QoE) improves significantly. HDR support is critical to video workflows at nearly every stage, starting from encoding to playback.
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