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Is DOF simulation possible?

COW Forums : RE:Vision Effects

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joe wentrup
Is DOF simulation possible?
on Feb 17, 2008 at 11:50:38 pm

Is there any possibilitie to create virtual shallow DOF with filters? I donĀ“t refer to 3D applications but to real world footage: For example, take 2/3" camera footage and increase the blur of already blurred areas in post until you get a 35mm look. Would that bie possible, at least in certain circumstances?

joe 1008

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Pierre Jasmin
Re: Is DOF simulation possible?
on Feb 18, 2008 at 6:26:31 pm

I have not seen anyone do a good job at it with a pure computer vision / image processing basis except with specially callibrated multiple simultaneuous views (eg the Microsoft Research demo uses 5 cameras), or maybe in very particular cases (like a pure pan without object motion as a source).

However often you can do a good job by cutting the image into regions with 3-4 roto masks, setting the alpha to eg 0.25, 0.5, 0.75 and 1.0 and then fiddling with that in SmoothKit ZBlur as your starting Z map base.


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