Still Picture Coding Performance (SPCP)

Image codecs and implementations.
Conditions per image: the number of color spaces × metric-tunes × modes.
For JPEG, we add a default setting (De).
In total, 210 conditions per image.
Codec	Library	Year	Color	Tunes	Encoder modes	Conditions per image
JPEG	libjpeg-turbo 3.1.0	1992	420, 444	PSNR	BS, BO, BA, BMA, BXL, PO, PA, PMA, PXL, De	19 = 2×1×9 + 1
MozJPEG	MozJPEG v4.1.5	2014	420, 444	PSNR, SSIM	BO, BMA, BXL, PO, PMA, PXL, De	25 = 2×2×6 + 1
Jpegli	Jpegli v0.11.1	2024	420, 444, xyb444	Butteraugli	BS, BO, BMA, BXL, PO, PMA, PXL, De	22 = 3×1×7 + 1
JPEG 2000	kakadu vS8.0.5	2000	420, 444	PSNR	no weight, color weight	4 = 2×1×2
JPEG XR	jxrlib 2019.10.9	2009	420, 444	PSNR	overlap (0,1,2)	6 = 2×1×3
JPEG XL	libjxl 0.11.1	2021	xyb444	Butteraugli	VarDCT (2 (fastest)- 10 (slowest)), Modular (2 - 10), (*1: debug mode)	18 = 1×1×(2×9)
WebP	libwebp 1.5.0	2010	420, 420s	PSNR	0 (fastest)- 6 (slowest)	14 = 2×1×7
HEIC	libx265 4.1, libde265 v1.0.16, libheif 1.19.8	2013	420, 444	PSNR, SSIM	0 (fastest) - 9 (slowest)	40 = 2×2×10
AVIF (AOM)	libaom 3.12.1, dav1d 1.5.1, libavif 1.2.1	2019	420, 444	PSNR, SSIM	0 (slowest) - 9 (fastest)	40 = 2×2×10
AVIF (SVT)	SVT-AV1 3.0.2 dav1d 1.5.1 libavif 1.2.1	2020	420	PSNR, SSIM	0 (slowest) - 10 (fastest)	22 = 1×2×11

Image codecs and implementations. Conditions per image: the number of color spaces × metric-tunes × modes. For JPEG, we add a default setting (De). In total, 210 conditions per image.