Placeholder 640×480 (vga)
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.
Specifications
- Width
- 640
- Height
- 480
- Label
- vga
- Note
- dimensions drawn on the image
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
“Placeholder 640×480 (vga)” is a deterministic Novus Examples fixture for Resolution testing, Thumbnail generation. Images from tiny to 4K, plus vertical and extreme aspect ratios, for testing scaling and layout.
Documented properties for this file: 640×480. 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="placeholder-640x480.png" alt="Example image" width="640" loading="lazy">Related files
- pngResolution — 1080×1920 (vertical 9:16)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.
- pngResolution — 16×16 (16px thumbnail)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.
- pngResolution — 1920×1080 (1080p 16:9)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.
- pngResolution — 256×256 (256px)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.
- pngResolution — 2560×1440 (1440p 16:9)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.
- pngResolution — 3840×2160 (4K 16:9)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.
Generated by generation/images_realworld.py. Free for any use, no attribution required — license.