there is a camera which takes four pictures at full resolution each shifted by a subpixel and computes JPGs not needing any Debayering, the Pentax K-3II. This is somewhat related to Foveon technology.
The resulting Raw files DNG and PEF contain 4 subdatasets accordingly.
Would it be possible to:
a) access any of the 4x raw data in the raw files (I think current rawdigger grabs the first one and ignores the rest)?
b) more importantly export full resolution tiff files for each RGGB color which are assembled from the four individual parts? These then would not need debayering.
Sample raw files for testing purposes can be found here: