Please add a "Super Pixel" binning mode for OSC cameras

[Borodog]

So-called "super pixel" binning in a OSC camera is straight forward; each block of four pixels in the Bayer pattern (e.g. RGGB) are assigned to a single pixel in the binned frame, red and blue pixels to the red and blue channel, the 2 green pixels averaged and applied to the green channel. There are a couple advantages to this. First, the file size of a 48 bit RGB PNG or TIFF at half the resolution is 25% smaller than a 16 bit grayscale image at the original resolution. Second, Debayering and the artifacts and choices of Debayering algorithm it introduces are not required. Lastly, and probably most importantly for myself, not all stacking software supports super pixel binning in post. For example my personal favorite is SiriL but it does not support this capability.

Super pixel binning is different from normal binning of a OSC camera. Normal binning loses color information by binning the RGGB pixels to a single mono pixel. Color preserving binning bins 2x2 blocks of RGGB 4-pixel blocks pixel by pixel; the result still has to be debayered and actually results in lower resolution. Super pixel binning is particularly advantageous on OSC cameras where the full sensor resolution is over-sampled.

Hopefully a mode like this would not be too difficult to implement.

Thanks for your time and consideration.