PNG OCR Fixture Matrix
Pick PNG fixtures for clean receipt scans, grayscale OCR preprocessing, and image-based extraction smoke tests.
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Linhas 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.
Linhas de fixtures
Available Variants
| Variante | Perfil | Foco do teste | Arquivo | Tamanho | Baixar |
|---|---|---|---|---|---|
|
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 | Baixar |
|
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 | Baixar |
|
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 | Baixar |
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