A reader commented on the previous post: The real tough part of posterization is when a gradient is colored and you get hue shifts as the color channels step across bins individually. Can you redo this test with a color gradient, like maybe 0.6 0.8 1.0 relative values to the channels? Pleased to do so…. [Read More]
Archives for September 28, 2015
Read noise and quantizing, again
About a year ago I wrote a post on how read and quantizing noise interact in a digital camera. I concluded that, when the standard deviation of Gaussian read noise exceeded one-half the least-significant bit (LSB), the read noise provided sufficient dither that further increases in ADC precision would offer no increase in average digitizing… [Read More]