TSC Meegint Notes 2025-05-15
Attendance:
Others:
Discussion:
Quick Recap
The team discussed adding two optional metadata fields to OpenEXR headers for better color space management and configuration handling. They explored various implementation approaches, including combining config and color space names into a single string attribute, while considering the relationship between new attributes and existing chromaticity metadata. The conversation ended with discussions about merging improved naming algorithm results and exploring new compression techniques, including flexible chunk sizes and lossy compression approaches.
Next Steps
Cary to merge the HTJQ branch tomorrow.
Pierre-Anthony to be available online tomorrow to assist Cary with the HTJQ merge if needed.
Carol and Doug to present their proposal for Ocio color space and config name attributes at the Color Interop Forum meeting on Monday.
Carol and Doug to consider Peter's suggestion of combining the two attributes into one for their Monday presentation.
Pierre-Anthony to explore implementing flexible chunk sizes for lossy compression in OpenEXR.
Pierre-Anthony to investigate implementing correlation between channels on the encode side for improved compression gains.
Michael to prepare compression results for demonstration in two weeks.
Pierre-Anthony to report the exact command used that resulted in invalid JSON output from exr_metrics to Peter.