Scanning with digital camera and stitching

Adrian Bacon

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Oct 18, 2016
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It’s not so much about the normalization, but about not applying a multiplier as that will distort the height of the peak and the toe of the peak. It won’t affect where the peak is in terms of placement on the spectrum, just the shape of the response.
 
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alanrockwood

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Oct 11, 2006
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I don't think a simple multiplier will distort the spectral response. (In fact it won't.) However, if there is some nonlinear function applied somewhere in the processing of the image, then it could result in an effective distortion. I think that most demosaicing algorithms include non-linear processing (for example, bicubic interpolation), so in that sense a multiplier could result in an effective distortion. Also, if the sensor response of the sensor is non-linear, then a multiplier could effect the shape of the spectrum.
 
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