A system to tell good fake bokeh from bad


The pixel-peepers over at DxOMark have shared some of the interesting metrics and techniques they use to judge the quality of a smartphone’s artificial bokeh, or background blur in photos. Not only is it difficult to do in the first place, but they have to systematize it! Their guide should provide even seasoned shooters with some insight into the many ways “computational bokeh,” as they call it, varies in quality.

Generally the effect created by an SLR with a good lens open wide, leading to smoothly blurred backgrounds and predictably shaped light points, is the gold standard.

The advantages and disadvantages of artificial background blur, as found in most flagship phones these days, come from the basis they all have in dual cameras. By using both cameras to capture…

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