Format Set — Fruit Still Life (PNG)
A 1024×1024 fruit still life exported as PNG — one member of a conversion set that carries identical content across formats, so you can convert one and diff against the others.
Specifications
- Width
- 1024
- Height
- 1024
- Format
- PNG
- Content
- identical across the set
What is a .png file?
PNG (Portable Network Graphics) is a raster image format using lossless DEFLATE compression. It supports full 8- or 16-bit-per-channel truecolor, palette, and greyscale modes with an optional alpha channel, but no animation. It is the standard choice for screenshots, logos, and graphics with sharp edges or transparency.
How to use this file
Use an example PNG to test image decoders, alpha-compositing, thumbnail generators, and format converters, or to verify that a pipeline preserves transparency and color depth on round-trip.
How to use this file for testing
“Format Set — Fruit Still Life (PNG)” is a deterministic Novus Examples fixture for Conversion testing. 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: 1024×1024 · PNG. 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="testcard.png" alt="Example image" width="640" loading="lazy">Related files
- png16-bit Grayscale PNG (deep colour)A 16-bit (deep-colour) grayscale PNG holding a smooth 0–65535 gradient — for testing high-bit-depth support and spotting banding when a tool truncates to 8-bit.
- png8-bit Greyscale Twin (PNG)8-bit PNG twin of the linear 16-bit greyscale ramp — compare banding after truncation.
- svgAnimated Spinner (SVG)An animated loading spinner using SMIL (animateTransform) — a self-contained animated SVG for testing whether a renderer or converter handles SVG animation, and how it rasterises an animated frame.
- apngAPNG — Animated SpinnerA 12-frame animated PNG (APNG) of a rotating arc — a lossless, alpha-capable alternative to animated GIF. Useful for testing APNG support, frame extraction, and GIF↔APNG conversion.
- svgBar Chart (SVG)A bar chart drawn as vector SVG — axis, gridlines, labelled bars — the scalable counterpart to the raster chart images, for testing SVG chart rendering and vector conversion.
- jpgCMYK 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.
Generated by generation/images_formats.py. Free for any use, no attribution required — license.