Format Set — Fruit Still Life (HEIF)
A 1024×1024 fruit still life exported as HEIF — the HEIF/HEVC member of the conversion set, the format modern phones use for photos.
Rendered preview of the heif file (65.6 KB). Download above for the original.
Specifications
- Width
- 1024
- Height
- 1024
- Format
- HEIF
- Codec
- HEVC
- Content
- identical across the set
What is a .heif file?
HEIF (High Efficiency Image Format) is an ISOBMFF-based container for storing images and image sequences, most often with HEVC-encoded content. It supports high bit depth, transparency, thumbnails, and multi-image collections. HEIC is its most common concrete variant.
How to use this file
Use an example HEIF to test container parsing, extraction of primary images and thumbnails, and transcoding to widely supported formats.
How to use this file for testing
“Format Set — Fruit Still Life (HEIF)” 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 · HEIF. 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.heif" 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.