Image sensors in digital cameras use a technology called "Bayer Patterns" allowing color photography with a planar arrangements of photosensitive elements. Alternating arrangements of red, green and blue filter masks on top of a rectangular grid of such elements allow capturing of color information, but also require a de-mosaicing algorithm to reconstruct a full-resolution color image from the sensor data. In high-speed applications, or applications where the system design requires low-latency, low-complexity compression, the JPEG XS standard of the JPEG committee offers an elegant solution to compress Bayer pattern images close to the sensor, and to transmit the compressed data over a lower bandwidth connection while maintaining visually lossless quality. This paper presents contributions to JPEG XS that are currently under discussion in the JPEG committee (SC29WG1) as parts of an amendment for Bayer pattern compression.