PNG Specification: Gamma Tutorial PNG (Portable Network Graphics) Specification, Version 1.2 Previous page Next page Table of contents 13. Appendix: Gamma Tutorial (This appendix is not part of the formal PNG specification.) 13.1. Nonlinear transfer functions It would be convenie…

PNG Specification: Color Tutorial PNG (Portable Network Graphics) Specification, Version 1.2 Previous page Next page Table of contents 14. Appendix: Color Tutorial (This appendix is not part of the formal PNG specification.) 14.1. About chromaticity The cHRM chunk is used, togeth…