3 ms·
The de-Bayering filter in a camera is a lot more sophisticated than a simple interpolation of pixels of the same color. Most real world images have a huge amou
by mark-r 6y ago
The de-Bayering filter in a camera is a lot more sophisticated than a simple interpolation of pixels of the same color. Most real world images have a huge amount of correlation between the R,G,B channels because few colors are perfectly saturated. Filtering software takes advantage of this and gets much higher resolution than simple interpolation ever could.
- centimeter 6y agoDo you have any examples of this? I’m a bit surprised to hear it, because spectral selection in modern bayers is pretty good. https://iopscience.iop.org/article/10.1088/1742-6596/536/1/012021/pdf https://iopscience.iop.org/article/10.1088/1742-6596/536/1/0...
- mark-r 6y agoMany RAW developers give you a choice of which de-bayering algorithm to use. Some are optimized for maximum detail retention. You can easily see the difference on a black-and-white resolution test target, which has perfect correlation between the R,G,B values.