Photometric Interpretation (0028,0004) shall be one of these Enumerated Values (see C.184.108.40.206.2):
The value shall be appropriate to the compression transfer syntax used, if any, and shall be MONOCHROME2 or RGB for uncompressed or lossless compressed transfer syntaxes that do not involve color space transformations, YBR_ICT for irreversible JPEG 2000 transfer syntaxes, YBR_RCT for reversible JPEG 2000 transfer syntaxes, and YBR_FULL_422 for other lossy compressed transfer syntaxes.
Note: Future lossless and lossy transfer syntaxes may lead to the need for new definitions and choices for Photometric Interpretation. The Enumerated Values may therefore be extended with additional Photometric Interpretation values directly associated with new transfer syntaxes that are negotiated, and hence do not render existing implementations non-conformant.
Multi-spectral images may be encoded as a single wavelength band (color) in each frame using MONOCHROME2, or with up to three bands in each frame using one of the color Photometric Interpretations.
Samples per Pixel (0028,0002) shall be 1 for MONOCHROME2, and 3 otherwise.