cesnimda
64 lines
3.6 KiB
Python
64 lines
3.6 KiB
Python
"""Inspect actual PDF raster pixels at both sidebar edges on every exported page."""
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import argparse
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import json
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import re
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from pathlib import Path
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from PIL import Image, ImageDraw
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("directory", type=Path)
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args = parser.parse_args()
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source = json.loads((args.directory / "measurements.json").read_text(encoding="utf-8"))
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results = []
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for fixture in source["fixtures"]:
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if not fixture["fixture"].endswith(("-technical", "-creative", "-nordic")):
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continue
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html = (args.directory / fixture["fixture"] / "render.html").read_text(encoding="utf-8")
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color = re.search(r"--cv-sidebar-bg:(#[0-9a-fA-F]{6})", html)
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if not color:
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continue
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expected = tuple(int(color[1][index:index + 2], 16) for index in (1, 3, 5))
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for number in range(1, fixture["previewPages"] + 1):
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with Image.open(args.directory / fixture["fixture"] / f"pdf-{number}.png") as image:
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image = image.convert("RGB")
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# 2px and 8px lie inside the bleed and outside the 8mm text padding.
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columns = [image.width - 3, image.width - 9] if fixture["fixture"].endswith("-nordic") else [2, 8]
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samples = []
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for x in columns:
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mismatched = [y for y in range(image.height) if max(abs(a - b) for a, b in zip(image.getpixel((x, y)), expected)) > 2]
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samples.append({"x": x, "expectedRgb": expected, "height": image.height,
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"mismatchedRows": len(mismatched), "firstMismatchRows": mismatched[:8],
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"topPixel": image.getpixel((x, 0)), "bottomPixel": image.getpixel((x, image.height - 1))})
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results.append({"fixture": fixture["fixture"], "page": number, "pass": all(sample["mismatchedRows"] == 0 for sample in samples), "samples": samples})
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report = {"rasterizer": "pypdfium2 via unchanged verify-cv-fidelity.py, actual exported PDF bytes",
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"colorTolerancePerChannel": 2, "passedPages": sum(item["pass"] for item in results), "pages": len(results), "results": results}
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(args.directory / "sidebar-pixels.json").write_text(json.dumps(report, indent=2), encoding="utf-8")
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print(f"Full-height sidebar raster coverage: {report['passedPages']}/{report['pages']} pages")
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# Contact sheets use independent Poppler first/last rasterizations.
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for sample in ("short-en", "medium-nb", "long-en", "dense-nb"):
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fixtures = [item for item in source["fixtures"] if item["fixture"].startswith(sample + "-")]
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for edge in ("first", "last"):
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sheet = Image.new("RGB", (900, 1365), "#e5e7eb")
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draw = ImageDraw.Draw(sheet)
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for index, fixture in enumerate(fixtures):
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page = 1 if edge == "first" else fixture["previewPages"]
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filename = args.directory / fixture["fixture"] / f"poppler-{page}.png"
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if not filename.exists():
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raise FileNotFoundError(filename)
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with Image.open(filename) as image:
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image = image.convert("RGB")
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image.thumbnail((286, 414))
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x, y = (index % 3) * 300 + 7, (index // 3) * 455 + 32
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sheet.paste(image, (x, y))
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draw.text((x, y - 25), f"{fixture['fixture']} p{page}/{fixture['previewPages']}", fill="#111827")
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sheet.save(args.directory / f"contact-{sample}-{edge}.png")
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raise SystemExit(0 if report["passedPages"] == report["pages"] and report["pages"] > 0 else 1)
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if __name__ == "__main__":
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main()
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