the last word

After constructing the software tools to get the results for  the last few posts, it occurred to me that I’d done most of the work to take a crack at something that had always interested me, but I’d never gotten around to researching: do camera color filter arrays (CFAs) that produce more accurate results when… [Read More]

In the previous post, I looked a what I’m calling microcolor effects with various simulated cameras. I know that some of you prefer visuals to graphs. This post is for you. I’ll post all the images from which the graphs in the previous post were derived. What’s shown here are 24 base patches, each one… [Read More]

I found an error (a prime symbol, ‘, omitted) in the code that I used to generate the images in the original post, so I have extensively revised it. My apologies. In the previous post, I reported on the effect of the selectivity of the color filter array (CFA) spectra on color accuracy in cameras… [Read More]

There is a widespread belief about Bayer color filter array (CFA) response spectra. It goes something like this: The old CCD cameras used to have great color. The reason they had such good color is the dye layers in the CFA were thick. Thick dye layers led to highly selective (narrow band) spectral responses. Modern… [Read More]