Nowadays, digital cameras do not produce film grain, unlike older film cameras. To try and replicate authentic film grain in post-production, the Poisson Distribution can be used as noted here:
https://www.ipol.im/pub/art/2017/192/article.pdf
longh2000
Poisson distribution is a discrete distribution that measures discreet count of random events in an interval of time. Just curious if there is a continuous version of Poisson distribution that makes the curve smooth.
estherc123
just to make sure, we usually define the unit of lambda is the number of photons per pixel right?
andrewhuang56
I believe that that is close, but rather it should be the number of photons per pixel per unit time (interval length)
Nowadays, digital cameras do not produce film grain, unlike older film cameras. To try and replicate authentic film grain in post-production, the Poisson Distribution can be used as noted here:
https://www.ipol.im/pub/art/2017/192/article.pdf
Poisson distribution is a discrete distribution that measures discreet count of random events in an interval of time. Just curious if there is a continuous version of Poisson distribution that makes the curve smooth.
just to make sure, we usually define the unit of lambda is the number of photons per pixel right?
I believe that that is close, but rather it should be the number of photons per pixel per unit time (interval length)