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Find files, editable templates and browser test targets by what you need to make or test. The directory below is cut by format; the two collections under it cut the same library by subject and by workflow.

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Close up woven linen fabric (JPEG q50)

The same plate encoded once at JPEG quality 50. Blocking and ringing are bounded by that single pass, so a restorer can be scored against the PNG reference in this group rather than against an opinion Plate t-tex-linen.

File: JPG · JPEG Artefacts · 1280 × 853 px
Use case: Media handling· Conversion set

Close up woven linen fabric (JPEG q75)

The same plate encoded once at JPEG quality 75. Blocking and ringing are bounded by that single pass, so a restorer can be scored against the PNG reference in this group rather than against an opinion Plate t-tex-linen.

File: JPG · JPEG Artefacts · 1280 × 853 px
Use case: Media handling· Conversion set

Close up woven linen fabric (JPEG q90)

The same plate encoded once at JPEG quality 90. Blocking and ringing are bounded by that single pass, so a restorer can be scored against the PNG reference in this group rather than against an opinion Plate t-tex-linen.

File: JPG · Comfy Realism · 1280 × 853 px
Use case: Media handling· Conversion set

Close up woven linen fabric (lossless PNG)

A synthetic photographic plate of a flat surface texture under even light, 1024x683, lossless PNG. This is the reference every lossy variant in this group is derived from Plate t-tex-linen.

File: PNG · Comfy Realism · 1024 × 683 px
Use case: Media handling· Conversion set

Close up woven linen fabric (WebP q85)

The same plate as WebP at quality 85, for format-handling coverage beside the PNG and JPEG encodings of identical pixels Plate t-tex-linen.

File: WEBP · Raster Formats · 1280 × 853 px
Use case: Media handling· Conversion set

CMYK JPEG (print colour space)

The fruit still life converted to the CMYK (print) colour space and saved as a JPEG, for testing CMYK decoding and CMYK→RGB conversion. Some web viewers render CMYK JPEGs with a colour shift.

File: JPG · Color And Metadata · 512 × 512 px
Use case: Colour managementConversion testing

Coast drift: scrub-preview sprite sheet

The scrub-preview sheet for the film in this group: 24 tiles in a 6x4 grid, one sampled per second, each 160x90. This is the form a player requests when a viewer drags the scrubber. A two-second clip yields two tiles and proves nothing about tiling; 24 seconds fills the grid.

File: JPG · Video Thumbnails
Use case: Media handling· Paired fixture

Cobalt Operations Team: Operating chart PNG

Operating chart PNG for Cobalt Operations Team. A 1440 by 900 RGB chart with 8 labeled source-derived observations in USD.

File: PNG · Business Kits · 1440 × 900 px
Use case: Data import

Codec Ladder: Blocks PNG (288px)

Same blocks scene encoded as png: rung on the Wave E codec ladder for quality / convert comparisons.

File: PNG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Blocks Q20 (288px)

Same blocks scene encoded as q20: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Blocks Q50 (288px)

Same blocks scene encoded as q50: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Blocks Q80 (288px)

Same blocks scene encoded as q80: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Blocks WEBP (288px)

Same blocks scene encoded as webp: rung on the Wave E codec ladder for quality / convert comparisons.

File: WEBP · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Fruit PNG (288px)

Same fruit scene encoded as png: rung on the Wave E codec ladder for quality / convert comparisons.

File: PNG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Fruit Q20 (288px)

Same fruit scene encoded as q20: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Fruit Q50 (288px)

Same fruit scene encoded as q50: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Fruit Q80 (288px)

Same fruit scene encoded as q80: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Fruit WEBP (288px)

Same fruit scene encoded as webp: rung on the Wave E codec ladder for quality / convert comparisons.

File: WEBP · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Fruit WebP Q95 (288px)

High-quality WebP of the fruit scene, near-lossless rung of the codec ladder.

File: WEBP · Codec Ladder · 288 × 288 px
Use case: Conversion testing· Conversion set

Codec Ladder: Mug PNG (288px)

Same mug scene encoded as png: rung on the Wave E codec ladder for quality / convert comparisons.

File: PNG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Mug Q20 (288px)

Same mug scene encoded as q20: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Mug Q50 (288px)

Same mug scene encoded as q50: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Mug Q80 (288px)

Same mug scene encoded as q80: rung on the Wave E codec ladder for quality / convert comparisons.

File: JPG · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set

Codec Ladder: Mug WEBP (288px)

Same mug scene encoded as webp: rung on the Wave E codec ladder for quality / convert comparisons.

File: WEBP · Codec Ladder · 288 × 288 px
Use case: Conversion testingComputer vision· Conversion set