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ran bypass on NB-2

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Alosh Denny
2026-03-28 15:53:24 +05:30
parent c2acc5d259
commit 8169824232
8 changed files with 615 additions and 12 deletions
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artifacts/visualizations/from_gemini_random/report.json
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src/extraction/synthid_bypass.py
+44 -12
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@@ -24,7 +24,6 @@ from scipy.fft import fft2, ifft2, fftshift, ifftshift
from scipy import ndimage
from typing import Optional, Dict, List, Tuple
from dataclasses import dataclass
import pywt
from PIL import Image
@@ -1558,6 +1557,39 @@ class SpectralCodebook:
self.n_black_refs = 0
self.n_white_refs = 0
@staticmethod
def _list_reference_images(
directory: str,
max_images: int = None,
) -> list:
"""
Collect .png/.jpg/.jpeg/.webp in a directory, excluding common unwatermarked
baseline filenames (e.g. black.jpg, white.png) when folders also hold those.
"""
import glob
excl = {
'black.jpg', 'black.jpeg', 'black.png',
'white.jpg', 'white.jpeg', 'white.png',
}
paths = []
for ext in ('*.png', '*.jpg', '*.jpeg', '*.webp'):
paths.extend(glob.glob(os.path.join(directory, ext)))
paths.extend(glob.glob(os.path.join(directory, ext.upper())))
# Dedupe while preserving sort order
seen = set()
out = []
for p in sorted(paths):
base = os.path.basename(p).lower()
if base in excl:
continue
if p not in seen:
seen.add(p)
out.append(p)
if max_images:
out = out[:max_images]
return out
def extract_from_references(self, black_dir: str, white_dir: str = None,
max_images: int = None):
"""
@@ -1567,19 +1599,21 @@ class SpectralCodebook:
For white images: watermark = 255 - pixel values (deviations from 255).
Args:
black_dir: Directory of pure-black Gemini PNG images
white_dir: Optional directory of pure-white Gemini PNG images
black_dir: Directory of pure-black SynthID-watermarked images (.png/.jpg/.webp)
white_dir: Optional directory of pure-white watermarked images
max_images: Max images to use per color (None = all)
"""
import glob
Files named black.jpg / white.png (etc.) are skipped so unwatermarked baselines
in the same folder are not averaged with watermarked outputs.
"""
# --- Black images ---
black_files = sorted(glob.glob(os.path.join(black_dir, '*.png')))
if max_images:
black_files = black_files[:max_images]
black_files = self._list_reference_images(black_dir, max_images=max_images)
if not black_files:
raise ValueError(f"No PNG files found in {black_dir}")
raise ValueError(
f"No image files (.png/.jpg/.jpeg/.webp) found in {black_dir} "
f"(after excluding black.* / white.* baselines)"
)
print(f"Extracting spectral envelope from {len(black_files)} black images...")
@@ -1650,9 +1684,7 @@ class SpectralCodebook:
# --- White images (optional) ---
if white_dir:
white_files = sorted(glob.glob(os.path.join(white_dir, '*.png')))
if max_images:
white_files = white_files[:max_images]
white_files = self._list_reference_images(white_dir, max_images=max_images)
if white_files:
print(f"\nExtracting from {len(white_files)} white images...")