---
library_name: transformers
pipeline_tag: image-text-to-text
tags:
  - image-forensics
  - image-manipulation-detection
  - visual-tool-use
  - qwen3-vl
---

# ForgeryVCR

ForgeryVCR is a visual-centric image-forensics agent built on
Qwen3-VL-4B-Instruct. It actively calls ELA, FFT, NPP, and Zoom-In tools,
classifies an image as authentic or tampered, and localizes manipulated regions
with bounding boxes.

The released merged GRPO checkpoint is stored under `GRPO/`.

## Download

```bash
hf download youqiwong/ForgeryVCR \
  --repo-type model \
  --include "GRPO/*" \
  --local-dir weights/ForgeryVCR
```

Use the checkpoint from the
[ForgeryVCR repository](https://github.com/youqiwong/ForgeryVCR):

```bash
INFERENCE_MODEL_PATH=weights/ForgeryVCR/GRPO \
INFERENCE_DATASETS="all" \
bash scripts/run_inference.sh
```

The full tool definitions, prompts, preprocessing, SAM2 mask generation, and
evaluation code are maintained in the project repository.