Codec Ladder — Blocks Q20 (288px)
Same blocks scene encoded as q20 — rung on the Wave E codec ladder for quality / convert comparisons.
Specifications
- Width
- 288
- Height
- 288
- Role
- q20
- Scene
- blocks
- Seed
- 1603
- Jpeg Quality
- 20
What is a .jpg file?
JPG is the common extension for JPEG, a lossy raster format that uses discrete cosine transform compression tuned for photographic images. It is 8-bit truecolor with no alpha channel, and quality is traded against file size via a compression factor. It is ubiquitous for photos on the web and from cameras.
How to use this file
Use an example JPG to test decoders, EXIF/metadata parsers, re-encoding quality, and orientation handling, or to confirm converters and image pipelines process baseline and progressive scans correctly.
How to use this file for testing
“Codec Ladder — Blocks Q20 (288px)” is a deterministic Novus Examples fixture for Conversion testing, Computer vision. The same content exported across many formats and linked as a group, so you can convert one and diff against the expected twin.
Documented properties for this file: 288×288 · seed 1603 · q20 · JPEG q20. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
For image AI or enhancement tools, run the model or filter on this file and diff against the clean or ground-truth companion in the same group when available. Keep seeds and documented damage parameters in your evaluation notes so regressions are attributable.
Code examples
<img src="blocks-q20.jpg" alt="Example image" width="640" loading="lazy">Related files
- pngCodec Ladder — Fruit PNG (288px)Same fruit scene encoded as png — rung on the Wave E codec ladder for quality / convert comparisons.
- jpgCodec Ladder — Fruit Q20 (288px)Same fruit scene encoded as q20 — rung on the Wave E codec ladder for quality / convert comparisons.
- jpgCodec Ladder — Fruit Q50 (288px)Same fruit scene encoded as q50 — rung on the Wave E codec ladder for quality / convert comparisons.
- jpgCodec Ladder — Fruit Q80 (288px)Same fruit scene encoded as q80 — rung on the Wave E codec ladder for quality / convert comparisons.
- webpCodec Ladder — Fruit WEBP (288px)Same fruit scene encoded as webp — rung on the Wave E codec ladder for quality / convert comparisons.
- pngCodec Ladder — Mug PNG (288px)Same mug scene encoded as png — rung on the Wave E codec ladder for quality / convert comparisons.
Generated by generation/images_wave_e.py. Free for any use, no attribution required — license.