| Recovering the camera
response |
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| Method 1 |
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| • | Carefully model
every step in the pipeline |
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| – | measure aperture,
model film, digitizer, etc. |
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| – | this is *really*
hard to get right |
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| Method 2 |
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| • | Calibrate
(estimate) the response function |
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| – | Image several
objects with known radiance |
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| – | Measure the pixel
values |
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| – | Fit a function |
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| – | Find the
inverse: maps pixel
intensity to radiance |
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