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Quick start: Score a single video edit with VEFX-Reward.
Usage:
python examples/quick_start.py \
--original examples/sample_videos/object_removal_original.mp4 \
--edited examples/sample_videos/object_removal_edited.mp4 \
--instruction "Remove the woman with the grey backpack walking on the right side of the frame."
# Or score all included samples:
python examples/quick_start.py --run_samples
"""
import argparse
import json
import os
from vefx_reward import VEFXReward
def main():
parser = argparse.ArgumentParser(description="Score a video edit with VEFX-Reward")
parser.add_argument("--original", help="Path to original video")
parser.add_argument("--edited", help="Path to edited video")
parser.add_argument("--instruction", help="Editing instruction")
parser.add_argument("--model", default="xiangbog/VEFX-Reward-4B", help="Model path or HF ID")
parser.add_argument("--device", default="cuda", help="Device (cuda / cpu)")
parser.add_argument("--run_samples", action="store_true", help="Score all included sample video pairs")
args = parser.parse_args()
model = VEFXReward(args.model, device=args.device)
if args.run_samples:
samples_dir = os.path.join(os.path.dirname(__file__), "sample_videos")
with open(os.path.join(samples_dir, "prompts.json")) as f:
samples = json.load(f)
for sample in samples:
scores = model.score(
os.path.join(samples_dir, sample["original"]),
os.path.join(samples_dir, sample["edited"]),
sample["instruction"],
)
print(f"\n[{sample['category']}]")
print(f" Instruction: {sample['instruction'][:80]}...")
print(f" IF={scores['IF']:.2f} RQ={scores['RQ']:.2f} EE={scores['EE']:.2f} Overall={scores['Overall']:.2f}")
else:
if not all([args.original, args.edited, args.instruction]):
parser.error("--original, --edited, and --instruction are required (or use --run_samples)")
scores = model.score(args.original, args.edited, args.instruction)
print("\n" + "=" * 50)
print("VEFX-Reward Scores")
print("=" * 50)
print(f" Instructional Following (IF): {scores['IF']:.2f}")
print(f" Render Quality (RQ): {scores['RQ']:.2f}")
print(f" Edit Exclusivity (EE): {scores['EE']:.2f}")
print(f" Overall : {scores['Overall']:.2f}")
print("=" * 50)
if __name__ == "__main__":
main()
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