Images from tiny to 4K, plus vertical and extreme aspect ratios, for testing scaling and layout.
A fruit still life rendered at 16×16 (16px thumbnail) with a faint registration grid — part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
A fruit still life rendered at 256×256 (256px) with a faint registration grid — part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
A fruit still life rendered at 1920×1080 (1080p 16:9) with a faint registration grid — part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
A fruit still life rendered at 2560×1440 (1440p 16:9) with a faint registration grid — part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
A fruit still life rendered at 3840×2160 (4K 16:9) with a faint registration grid — part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
A fruit still life rendered at 1080×1920 (vertical 9:16) with a faint registration grid — part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
A 150×150 placeholder image with its dimensions labelled on a coloured grid — a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
A 320×320 placeholder image with its dimensions labelled on a coloured grid — a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
A 640×480 placeholder image with its dimensions labelled on a coloured grid — a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
A 800×600 placeholder image with its dimensions labelled on a coloured grid — a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
A 1200×630 placeholder image with its dimensions labelled on a coloured grid — a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
A 1920×1080 placeholder image with its dimensions labelled on a coloured grid — a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
Clean 1024×1024 reference for super-resolution base A. Upscale the smaller inputs in this group toward this ground truth.
Bicubic downscale to 256×256 from the 1024px reference. Use as a super-resolution input.
Bicubic downscale to 128×128 from the 1024px reference. Use as a super-resolution input.
Bicubic downscale to 64×64 from the 1024px reference. Use as a super-resolution input.
Clean 1024×1024 reference for super-resolution base B. Upscale the smaller inputs in this group toward this ground truth.
Bicubic downscale to 256×256 from the 1024px reference. Use as a super-resolution input.
Bicubic downscale to 128×128 from the 1024px reference. Use as a super-resolution input.
Bicubic downscale to 64×64 from the 1024px reference. Use as a super-resolution input.
A portrait 9:16 (270×480) clip with a vertically-moving marker — the aspect ratio of phone and short-form video. A fixture for testing vertical-video handling, orientation, and letterboxing in players and thumbnailers.
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