How can I do pixel binning with R5C's raw files or directly (ie., before writing a file), with still or video, from the camera (eg., with a specific downscaled format) or with another existing software (eg., DaVinci Resolve, Photoshop) ?
Maybe more specifically I'm considering binning as mean or sum of clusters of 2 (horizontal line or vertical line) or 4 pixels (square).
Other cluster algorithms such as bicubic, bilinear, cubic b-splines, may not be as good as binning for reducing noise while keeping sharpness by downsampling (eg., I would be considering 8k DCI to 4k DCI for the video case).