PNG OCR Fixture Matrix

Pick PNG fixtures for clean receipt scans, grayscale OCR preprocessing, and image-based extraction smoke tests.

3 Fixture-rijen

3 Hoe je deze matrix gebruikt

Use the matrix when the validation target is a set of variants rather than one canonical sample.

Hoe je deze matrix gebruikt

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.

Fixture-rijen

Variant	Profile	Testfocus	File	Size	Download
Receipt Scan PNG Good first OCR smoke test for grayscale scan ingestion.	Clean scan	Receipt OCR baseline	png_receipt_scan_sample.png .png `SHA256 361a115695b4...`	4.4 KB	Download
OCR-Noise PNG Targets preprocessing, thresholding, and low-quality scan handling.	Noisy scan	Denoising and OCR robustness	png_ocr_noise_sample.png .png `SHA256 cb7cf2486f66...`	42.0 KB	Download
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 .png `SHA256 17643f66be24...`	20.1 KB	Download

Gerelateerde strategische pagina's

Bundle of real PNG, JPEG, TIFF, and scan-style PDF fixtures for OCR, scan ingestion, and document-photo extraction workflows.

image_extraction_fixture_pack.zip · 382.3 KB

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PNG, JPEG, TIFF, and scan-style PDF fixtures for OCR, document-photo capture, scan preprocessing, and image-based extraction workflows.

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Gerelateerde strategische pagina's

PNG vs WebP BMP vs PNG TIFF vs PNG