PNG OCR Fixture Matrix
Pick PNG fixtures for clean receipt scans, grayscale OCR preprocessing, and image-based extraction smoke tests.
3
Filas de fixtures
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Como usar esta matriz
Use the matrix when the validation target is a set of variants rather than one canonical sample.
Como usar esta matriz
Coverage
- Covers clean scan-style PNGs and noisier grayscale OCR inputs.
- Useful for OCR preprocessing, thresholding, and receipt/document parsing workflows.
- Anchored to the image extraction pack and workflow hub.
Filas de fixtures
Available Variants
| Variante | Perfil | Foco de prueba | Archivo | Tamano | Descargar |
|---|---|---|---|---|---|
|
Receipt Scan PNG
Good first OCR smoke test for grayscale scan ingestion.
|
Clean scan | Receipt OCR baseline |
png_receipt_scan_sample.png
|
4.4 KB | Descargar |
|
OCR-Noise PNG
Targets preprocessing, thresholding, and low-quality scan handling.
|
Noisy scan | Denoising and OCR robustness |
png_ocr_noise_sample.png
|
42.0 KB | Descargar |
|
1000x600 PNG
Useful as a non-document control image when comparing OCR routing behavior.
|
Generic image baseline | Simple raster acceptance |
png_1000x600_sample_file_21KB.png
|
20.1 KB | Descargar |
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Recomendaciones por caso de uso
Como convertir
How to Convert BMP to PNG
How to Convert PNG to BMP
How to Convert PNG to TIFF
How to Convert PNG to WEBP