Datasets:
File size: 2,018 Bytes
f79f2ee | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | """Robustness-check variant of the occluded images: every occluder shape is
filled BLUE with a YELLOW border, regardless of the colors stored in the
annotations. Geometry (bbox/polygon positions) is taken verbatim from
annotations.json so only the occluder color changes vs. the original
`_occluded.png` set."""
import json
import shutil
from pathlib import Path
from PIL import Image, ImageDraw
SRC_DIR = Path("data/combined_output")
ANNOTATIONS_PATH = SRC_DIR / "annotations.json"
OUT_DIR = Path("data/combined_output_blue")
FILL_COLOR = "#0000ff" # blue interior
BORDER_COLOR = "#eeff00" # yellow border
BORDER_WIDTH = 2
OUT_DIR.mkdir(exist_ok=True)
# eval_script.py reads annotations.json from the data_dir
shutil.copy(ANNOTATIONS_PATH, OUT_DIR / "annotations.json")
with open(ANNOTATIONS_PATH) as f:
data = json.load(f)
made = 0
for entry in data:
original_file = SRC_DIR / entry["original_file"]
if not original_file.exists():
print(f"Missing original: {original_file}")
continue
img = Image.open(original_file).convert("RGBA")
overlay = Image.new("RGBA", img.size, (0, 0, 0, 0))
draw = ImageDraw.Draw(overlay)
for ann in entry["annotations"]:
if ann["type"] == "bbox":
draw.rectangle(
[ann["x1"], ann["y1"], ann["x2"], ann["y2"]],
outline=BORDER_COLOR,
fill=FILL_COLOR,
width=BORDER_WIDTH,
)
elif ann["type"] == "polygon":
points = [(p["x"], p["y"]) for p in ann["points"]]
draw.polygon(points, outline=BORDER_COLOR, fill=FILL_COLOR)
# thicken the outline to match the border width used elsewhere
draw.line(points + [points[0]], fill=BORDER_COLOR, width=BORDER_WIDTH)
result = Image.alpha_composite(img, overlay).convert("RGB")
out_path = OUT_DIR / f"{original_file.stem}_occluded.png"
result.save(out_path)
made += 1
print(f"Done. Generated {made} blue-occluded images in {OUT_DIR}/")
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