cs448f: image processing for photography and vision tone mapping

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CS448f: Image Processing For Photography and Vision

CS448f: Image Processing For Photography and VisionTone MappingSo far

So far

Tone MappingSome Images have too much dynamic range to display on a slide:(belgium.hdr)Recall SharpeningInput

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Coarse + FineTone MappingInput

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Coarse + FineTone MappingOutput

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Coarse + FineTone MappingOutput

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Coarse + FineTons of strong detail in the bright regions, not enough in the dark regionsTone MappingInput

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Coarse x FineTone MappingLog(Input)

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Log(Coarse) + Log(Fine)Tone MappingLog(Output)

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Log(Coarse) + Log(Fine)How should we make the coarse layer?

Input

Coarse

Fine

Input

Exp(Log(Coarse)*0.7 + Log(Detail))

Exp(Log(Coarse)*0.5 + Log(Detail))

Exp(Log(Coarse)*0.3 + Log(Detail))Conclusion:You can use a bilateral for tonemappingIts highly parameter-sensitiveResults arent greatWhats better?Not much.