w3c / png

Maintenance of the PNG specification

https://w3c.github.io/png/

w3c/png Issues

MDCV needs minor tweak for clarity (move cd/m2) to name column
Updated 2 months ago1
mdcv column "divisor" needs change to "unit of"
Closed 2 months ago1
Proposal: gain maps for PNG
Updated 2 months ago41
Consistent terminology
Updated 4 months ago6
drag and drop / application interoperability
Updated 4 months ago4
repo name nit: it'd be nice if this were simply w3c/png
Closed 4 months ago6
SMPTE RP 2077 is not freely available
Closed 8 months ago5
Call for Consensus: publish Candidate Recommendation
Closed 5 months ago22
new chunk type for listing preferred scaling algorithms.
Closed 4 months ago2
Lack of public APNG chunks
Closed 5 months ago4
Testing `mDCv`
Updated 5 months ago2
Testing `cLLi`
Updated 5 months ago1
PNGv2 12.11.2 -> PNGv3 12.10.2 transcription issue
Closed 5 months ago4
eXIf chunk change incompatible with the previously approved specification
Closed 5 months ago4
New filter method, optimised for 10,12,16 bits/component image data?
Updated 7 months ago7
Color space chunk precedence is repeated in a lot of places
Closed 7 months ago1
Latest H.273 is not free
Closed 7 months ago4
Color metadata should be before image data
Closed 8 months ago3
Add more complete definition of Chunk types four-byte sequences (four 1-byte ASCII abbreviation)
Closed 8 months ago6
Reccomend how to deal with negative values
Closed 8 months ago1
cICP *video* full range flag?
Closed 8 months ago2
IANA language subtag registry
Closed 8 months ago
Explicitly say that `cICP` can be used for Display P3, and add an example
Closed 9 months ago
Measured but not perceived
Closed 9 months ago4
Add PNG dWLm (Diffuse white luminance metadata ) chunk to conform to ISO 22028-5
Updated 9 months ago2
APNG error handling
Closed 9 months ago5
Typo in `extensions/Overview`
Closed 9 months ago
HDR10 reference
Closed 9 months ago7
10 bit per channel proposal
Updated 9 months ago13
Inconsistent colour / color
Closed 10 months ago5
Definition of Luminance
Closed 10 months ago
Use of TV specific terminology
Closed 10 months ago8
`tRNS` normative text in note
Closed 10 months ago1
Should we point out that PNG “Network Byte Order” is Big Endian?
Closed 10 months ago3
IDAT Headers Need More Documenation
Closed 10 months ago8
Right to be forgotten
Closed 10 months ago1
Add additional examples of MDCV and CLLI chunks in unsigned hex
Closed a year ago1
Does mDCV require cICP?
Closed a year ago4
Add back "Full-Range flag" to cICp description
Closed a year ago
Slight improvement to cicp full-range description
Closed a year ago
Specify 1-byte unsigned integer examples and clarified previous decimal examples.
Closed a year ago
Clarify that a frame with multiple fdAT's has only one sequence number
Closed a year ago9
Liaison letter from ISO TC 42/WG 23 on Gain Maps
Updated a year ago7
Missing mention of `cICP`
Closed a year ago1
mDCV chunk is underspecified
Closed a year ago1
Why?
Closed a year ago3
`iCCP` chunk description lacks styling on chunk contents table
Closed a year ago
Zero-length `IDAT` (and `fdAT`)
Closed a year ago2
`tILe` chunk
Closed a year ago1
Should the spec still talk about frame buffers?
Updated a year ago1