evals moved + readme

environments/eval_environments/vision_evals/ocrbench_environment.py

@@ -0,0 +1,140 @@
+"""OCRBench evaluation environment."""
+
+import asyncio
+import base64
+import io
+from typing import Dict, List, Optional, Tuple
+
+from datasets import load_dataset
+from PIL import Image
+
+from atroposlib.envs.server_handling.server_manager import ServerManager
+from environments.eval_environments.eval import EvalBase, eval_runner
+
+
+class OCRBench(EvalBase):
+    """OCRBench evaluation - OCR capabilities benchmark."""
+
+    # Categories and their scoring
+    CATEGORIES = [
+        "Regular Text Recognition",
+        "Irregular Text Recognition",
+        "Artistic Text Recognition",
+        "Handwriting Recognition",
+        "Digit String Recognition",
+        "Non-Semantic Text Recognition",
+        "Scene Text-centric VQA",
+        "Doc-oriented VQA",
+        "Key Information Extraction",
+        "Handwritten Mathematical Expression Recognition",
+    ]
+
+    def setup_data(self) -> list:
+        split = getattr(self, "split", "test")
+
+        try:
+            dataset = load_dataset("echo840/OCRBench", split=split)
+            print(f"Loaded {len(dataset)} examples from OCRBench ({split})")
+            return list(dataset)
+        except Exception as e:
+            print(f"Warning: Could not load OCRBench: {e}")
+            try:
+                dataset = load_dataset("lmms-lab/OCRBench", split=split)
+                print(f"Loaded {len(dataset)} examples from OCRBench ({split})")
+                return list(dataset)
+            except Exception:
+                raise ValueError(f"Could not load OCRBench dataset: {e}")
+
+    def encode_image(self, pil_image: Image.Image) -> str:
+        buffer = io.BytesIO()
+        pil_image.save(buffer, format="PNG")
+        return base64.b64encode(buffer.getvalue()).decode("utf-8")
+
+    def get_image_base64(self, item: dict) -> Optional[str]:
+        for key in ["image", "decoded_image"]:
+            if key in item and item[key] is not None:
+                if isinstance(item[key], Image.Image):
+                    return self.encode_image(item[key])
+        return None
+
+    def build_messages(self, item: dict) -> List[dict]:
+        image_base64 = self.get_image_base64(item)
+        question = item.get("question", "")
+
+        prompt = f"{question}\n\nAnswer the question using a single word or phrase."
+
+        content = []
+        if image_base64:
+            content.append(
+                {
+                    "type": "image_url",
+                    "image_url": {"url": f"data:image/png;base64,{image_base64}"},
+                }
+            )
+        content.append({"type": "text", "text": prompt})
+
+        return [{"role": "user", "content": content}]
+
+    def score_ocr(self, prediction: str, answers: List[str], category: str) -> bool:
+        """Category-specific scoring for OCR tasks."""
+        predict = prediction.strip()
+
+        if category == "Handwritten Mathematical Expression Recognition":
+            predict_clean = predict.replace("\n", " ").replace(" ", "")
+            for answer in answers:
+                answer_clean = answer.strip().replace("\n", " ").replace(" ", "")
+                if answer_clean in predict_clean:
+                    return True
+        else:
+            predict_lower = predict.lower().replace("\n", " ")
+            for answer in answers:
+                answer_lower = answer.lower().strip().replace("\n", " ")
+                if answer_lower in predict_lower:
+                    return True
+
+        return False
+
+    async def run_item(self, server: ServerManager, data_item: dict) -> Tuple[dict, dict]:
+        try:
+            messages = self.build_messages(data_item)
+            completion = await self.chat_completion(server, messages)
+
+            if not completion.choices:
+                return {"accuracy": 0.0}, {"error": "Empty response"}
+
+            message = completion.choices[0].message
+            response = message.content or ""
+
+            if not response:
+                return {"accuracy": 0.0}, {"error": "Empty response"}
+
+            answers = data_item.get("answer", [])
+            if isinstance(answers, str):
+                try:
+                    answers = eval(answers)
+                except Exception:
+                    answers = [answers]
+            if not isinstance(answers, list):
+                answers = [answers]
+
+            category = data_item.get("category", "")
+
+            correct = self.score_ocr(response, answers, category)
+
+            sample = {
+                "id": data_item.get("index", data_item.get("id", "")),
+                "question": data_item.get("question", "")[:200],
+                "category": category,
+                "answer": answers[0] if answers else "",
+                "prediction": response[:200],
+                "correct": correct,
+            }
+
+            return {"accuracy": 1.0 if correct else 0.0}, sample
+
+        except Exception as e:
+            return {"accuracy": 0.0}, {"error": str(e)}
+
+
+if __name__ == "__main__":
+    asyncio.run(eval_runner(OCRBench(split="test", temperature=0.0, max_tokens=256)))