Watermark Marked — Corner Logo (512px)
Fruit still life with a synthetic SAMPLE watermark (not a real brand). Use with the clean reference and mask to score removers.
Specifications
- Width
- 512
- Height
- 512
- Role
- watermarked input
- Mark
- logo
- Seed
- 736
- Reference
- img-watermark-corner-logo-clean
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
“Watermark Marked — Corner Logo (512px)” is a deterministic Novus Examples fixture for Watermark removal, Image pipeline QA. Clean images paired with synthetic SAMPLE watermarks (logo, text, tile, translucent) and masks — for scoring watermark removers without using real brand marks.
Documented properties for this file: 512×512 · seed 736 · watermarked input · mark: logo. 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="corner-logo-marked.png" alt="Example image" width="640" loading="lazy">Related files
- pngWatermark Clean — Center Text (512px)Clean fruit still life without marks — ground truth for synthetic SAMPLE watermark removal tests.
- pngWatermark Clean — Diagonal Banner (512px)Clean fruit still life without marks — ground truth for synthetic SAMPLE watermark removal tests.
- pngWatermark Clean — Semi Transparent (512px)Clean fruit still life without marks — ground truth for synthetic SAMPLE watermark removal tests.
- pngWatermark Clean — Tiled (512px)Clean fruit still life without marks — ground truth for synthetic SAMPLE watermark removal tests.
- pngWatermark Marked — Center Text (512px)Fruit still life with a synthetic SAMPLE watermark (not a real brand). Use with the clean reference and mask to score removers.
- pngWatermark Marked — Diagonal Banner (512px)Fruit still life with a synthetic SAMPLE watermark (not a real brand). Use with the clean reference and mask to score removers.
Generated by generation/images_enhance_wave_a.py. Free for any use, no attribution required — license.