| """Reviewed example regions, not an automatic region detector.""" |
| from pathlib import Path |
| import hashlib,json |
| import pymupdf as fitz |
|
|
| out=Path('output/pdf-image-audit') |
| cases=[('data/historia-2025-maj-matura-rozszerzona.pdf',4,[65,87,540,357],'2025-task-1-source-1'), |
| ('data/historia-2018-nowa-era-probna-rozszerzona.pdf',13,[50,74,550,440],'2018-task-14-map')] |
| rows=[] |
| for path,page,bbox,name in cases: |
| hashes=[] |
| for _ in range(2): |
| with fitz.open(path) as doc: |
| pixels=doc[page-1].get_pixmap(matrix=fitz.Matrix(3,3),clip=fitz.Rect(bbox),colorspace=fitz.csRGB,alpha=False,annots=True) |
| png=pixels.tobytes('png') |
| hashes.append(hashlib.sha256(png).hexdigest()) |
| assert hashes[0]==hashes[1] |
| (out/(name+'.png')).write_bytes(png) |
| rows.append({'pdf':path,'pdf_sha256':hashlib.sha256(Path(path).read_bytes()).hexdigest(), |
| 'page':page,'bbox_top_left_points':bbox,'selection':'manually reviewed example', |
| 'dpi':216,'colorspace':'RGB','alpha':False,'annots':True, |
| 'pymupdf':fitz.VersionBind,'png_sha256':hashes[0],'two_fresh_document_renders_identical':True}) |
| (out/'render-check.json').write_text(json.dumps(rows,indent=2)) |
| print(json.dumps(rows,indent=2)) |
|
|
