Co do webp to wątpię aby zastąpił jpega i png oficjalnie jako standard
Ostatnio głośno było o BPG
http://bellard.org/bpg/
Cytat:
BPG (Better Portable Graphics) is a new image format. Its purpose is to replace the JPEG image format when quality or file size is an issue. Its main advantages are:
High compression ratio. Files are much smaller than JPEG for similar quality.
Supported by most Web browsers with a small Javascript decoder (gzipped size: 56 KB).
Based on a subset of the HEVC open video compression standard.
Supports the same chroma formats as JPEG (grayscale, YCbCr 4:2:0, 4:2:2, 4:4:4) to reduce the losses during the conversion. An alpha channel is supported. The RGB, YCgCo and CMYK color spaces are also supported.
Native support of 8 to 14 bits per channel for a higher dynamic range.
Lossless compression is supported.
Various metadata (such as EXIF, ICC profile, XMP) can be included.
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Bazuje na HEVC/H265.
Wątpię jednak, że zastąpi jpega
Patenty, polityka itd.
Tutaj porównanie -
http://bellard.org/bpg/lena.html
Jak dla mnie jakość żyleta w porównaniu do jpega przy małych rozmiarach pliku wynikowego.