w3c/png Issues

Last updated Jan 4, 2025, 5:56:19 AM UTC.

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Issue Title Within SLO On maintainers' plates for Time left Time past SLO
#5 pHYs is metric-only
#6 AverageLaneFilter
#14 Spatial referencing of a PNG image; pHYs unsuitable
#15 Textual chunk which is not `safe to copy`
#16 Image tiling chunk
#21 Interpolation preference
#24 Alternative palettes
#25 Internal IDs for fragment references
#38 APNG implementation
#39 Consider using Zstandard and/or LZ4 instead of Deflate
#40 Consider making the Adler32 check optional during decompression
#41 Suggestion: regular restart markers
#45 Formalize Apple's CgBI chunk
#54 Multithreading PNG decoding, "parallel" PNG's
#55 Much faster standard PNG writing
#60 PNG Restart Marker specification
#97 Natural image resolution, CSS. web compat, and `pHYs`
#255 Consider improvements to progressive loading
#308 Link to tables and figures by name
#311 Some tone mapping requires the average luminance between frames
#312 Testing `cICP`
#319 Tone-mapping should be stable when mDCv and cLLi are static
#320 Handling invalid, unknown ancillary chunks
#344 Flag for use of artistic controls
#347 Should the spec still talk about frame buffers?
#357 10 bit per channel proposal
#358 Testing `cLLi`
#359 Testing `mDCv`
#366 Liaison letter from ISO TC 42/WG 23 on Gain Maps
#380 Proposal: gain maps for PNG
#390 Add PNG dWLm (Diffuse white luminance metadata ) chunk to conform to ISO 22028-5
#405 Consistent terminology
#426 New filter method, optimised for 10,12,16 bits/component image data?
#467 Join chunk ordering rules
#472 Added table with 16bit full and narrow range values
#477 Deadlink to old cLLi chunk name in mDCV chunk description
#478 iCCP chunk requirements for GRAY and RGB