PNG OCR Fixture Matrix

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

3 Fixture Rows

3 How to Use This Matrix

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

How to Use This Matrix

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 Rows

Variant	Profile	Test Focus	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

Related Strategy Pages

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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Related Strategy Pages

PNG vs WebP BMP vs PNG TIFF vs PNG