av1-avif

AVIF Example files from Link-U

• All files do not contain Exif metadata.
• All files are tagged as MIAF compatible.
• All files are tagged as compatible with the AVIF Baseline or Advanced Profile if possible.
• All images have the “reduced_still_picture_header” and “still_picture” flags set to 1 in the AV1 Sequence Header.
• All images are licensed under CC-BY-SA 4.0.

Makefile describes how they were created. To generate files yourself, you have to install cavif and davif

Additional test images may to be added. Please check our repositories for them.

hato

• size: 3082x2048
• Author: Kaede Fujisaki (@ledyba)
• Retrieved from her website.

AVIF version

YUV 420

profile	bit depth	Monochrome	CDEF	Loop Restoration	file
0	8		NO	YES	here
0	8	YES	NO	YES	here
0	10		NO	NO	here
0	10	YES	NO	NO	here

YUV422

profile	bit depth	Monochrome	CDEF	Loop Restroation	file
1	8		NO	YES	here
1	8	YES	NO	YES	here
1	10		NO	NO	here
1	10	YES	NO	NO	here
1	12		NO	NO	here
1	12	YES	NO	NO	here

Kimono - Transformation tests

• size: 722x1024
• Authors: Momiji Jinzamomi(@momiji-san) and Kaede Fujisaki (@ledyba)
• Retrieved from their website.

Test images for rotation(irot), mirroring(imir), cropping(clap).

All AVIF images are encoded in these settings:

• Profile 0
• YUV420
• 8 bits per component

FYI: Transform operation order

MIAF defines the transform operation order(p.16):

These properties, if used, shall be indicated to be applied in the following order:
clean aperture first, then rotation, then mirror.

Identity

kimono.avif

No operation is applied.

Rotation 90

kimono.rotate90.avif

Encoded image is rotated at 90 degree in counter-clockwise, and marked to rotate it 270 degree in counter-clockwise when displaying. Thus, resulted image is as the same as the original.

Rotation 270

kimono.rotate270.avif

Encoded image is rotated at 270 degree in counter-clockwise, and marked to rotate it 90 degree in counter-clockwise when displaying. Thus, resulted image is as the same as the original.

Mirroring horizontally

kimono.mirror-horizontal.avif

Encoded image is mirrored horizontally, and marked to mirror it horizontally again when displaying. Thus, resulted image is as the same as the original.

Mirroring vertically

kimono.mirror-vertical.avif

Vertical version. Same as above.

Mirroring vertically + Rotating at 90 degrees.

kimono.mirror-vertical.rotate270.avif

Encoded image is mirrored vertically, then rorated at 90 degree in clockwise, and marked to rotate it at 90 degree in counter-clockwise and then mirror it vertically when displaying.

Thus, resulted image is as the same as the original.

Cropping

Displaying image will be cropped from the original image, using CleanApertureBox(See: ISO/IEC 14496-12:2015).

Cropped under these condition:

• cleanApertureWidthN: 385
• cleanApertureWidthD: 1
• cleanApertureHeightN: 330
• cleanApertureHeightD: 1
• horizOffN: 103
• horizOffD: 1
• vertOffN: -308 (This can be negative, as mensioned in ISO/IEC 14496-12:2015).
• vertOffD: 1

Resulted image should be:

Cropping + Mirroring vertically + Rotating at 90 degrees.

Encoded image is mirrored vertically, then rorated at 90 degree in clockwise, and marked to crop it first, rotate it at 90 degree in counter-clockwise, and then mirror it vertically.

Cropping condition is:

• cleanApertureWidthN: 330
• cleanApertureWidthD: 1
• cleanApertureHeightN: 385
• cleanApertureHeightD: 1
• horizOffN: -308
• horizOffD: 1
• vertOffN: 103
• vertOffD: 1

Resulted image should be as the same as above.

Fox Parade - Odd dimensions images

Original

• size: 1204 x 800
• Author: Kaede Fujisaki (@ledyba)
• Retrieved from her website.

Odd-Width

• fox.odd-width.png
• size: 1203 x 800

Odd-Height

• fox.odd-width.png
• size: 1204 x 799

AVIF version

profile	bit depth	pix fmt	Monochrome	odd width	odd height	file
0	8	YUV420				here
0	8	YUV420		YES		here
0	8	YUV420			YES	here
0	8	YUV420		YES	YES	here
0	8	YUV420	YES			here
0	8	YUV420	YES	YES		here
0	8	YUV420	YES		YES	here
0	8	YUV420	YES	YES	YES	here
0	10	YUV420				here
0	10	YUV420		YES		here
0	10	YUV420			YES	here
0	10	YUV420		YES	YES	here
0	10	YUV420	YES			here
0	10	YUV420	YES	YES		here
0	10	YUV420	YES		YES	here
0	10	YUV420	YES	YES	YES	here
2	12	YUV420				here
2	12	YUV420		YES		here
2	12	YUV420			YES	here
2	12	YUV420		YES	YES	here
2	12	YUV420	YES			here
2	12	YUV420	YES	YES		here
2	12	YUV420	YES		YES	here
2	12	YUV420	YES	YES	YES	here
2	8	YUV422				here
2	8	YUV422		YES		here
2	8	YUV422			YES	here
2	8	YUV422		YES	YES	here
2	8	YUV422	YES			here
2	8	YUV422	YES	YES		here
2	8	YUV422	YES		YES	here
2	8	YUV422	YES	YES	YES	here
2	10	YUV422				here
2	10	YUV422		YES		here
2	10	YUV422			YES	here
2	10	YUV422		YES	YES	here
2	10	YUV422	YES			here
2	10	YUV422	YES	YES		here
2	10	YUV422	YES		YES	here
2	10	YUV422	YES	YES	YES	here
2	12	YUV422				here
2	12	YUV422		YES		here
2	12	YUV422			YES	here
2	12	YUV422		YES	YES	here
2	12	YUV422	YES			here
2	12	YUV422	YES	YES		here
2	12	YUV422	YES		YES	here
2	12	YUV422	YES	YES	YES	here
1	8	YUV444				here
1	8	YUV444		YES		here
1	8	YUV444			YES	here
1	8	YUV444		YES	YES	here
1	8	YUV444				here
1	8	YUV444		YES		here
1	8	YUV444			YES	here
1	8	YUV444		YES	YES	here
1	10	YUV444				here
1	10	YUV444		YES		here
1	10	YUV444			YES	here
1	10	YUV444		YES	YES	here
2	12	YUV444				here
2	12	YUV444		YES		here
2	12	YUV444			YES	here
2	12	YUV444		YES	YES	here
2	12	YUV444	YES			here
2	12	YUV444	YES	YES		here
2	12	YUV444	YES		YES	here
2	12	YUV444	YES	YES	YES	here

This site is open source. Improve this page.