Merge feature/ocr-vision into main

backend/agent/image_search_agent/image_search_graph.py

@@ -137,8 +137,39 @@ class ImageSearchGraph:
 
                     if analysis.get("success"):
                         feats = analysis["features"]
-                        extracted_features_text += f"Ảnh {idx+1} [Local Vision AI]: Danh mục: {feats.get('category')}, Màu: {feats.get('color')}, Phong cách: {feats.get('style')}\n"
+                        ocr_text = feats.get("ocr_text", "")
+                        ocr_info = f", Chữ in trên áo (OCR): {ocr_text}" if ocr_text else ""
+                        extracted_features_text += f"Ảnh {idx+1} [Local Vision AI + OCR]: Danh mục: {feats.get('category')}, Màu: {feats.get('color')}, Phong cách: {feats.get('style')}{ocr_info}\n"
                         extracted_features_text += f"Raw tags: {', '.join(feats.get('raw_labels', []))}\n"
+                        
+                        if ocr_text:
+                            import sqlite3
+                            from common.constants import SQLITE_DB_PATH
+                            try:
+                                conn = sqlite3.connect(SQLITE_DB_PATH)
+                                conn.row_factory = sqlite3.Row
+                                cursor = conn.cursor()
+                                keywords = [k for k in ocr_text.split() if len(k) > 2]
+                                if keywords:
+                                    like_clauses = " OR ".join(["clean_description LIKE ? OR product_name LIKE ?"] * len(keywords))
+                                    params = []
+                                    for k in keywords:
+                                        params.extend([f"%{k}%", f"%{k}%"])
+                                    
+                                    rows = cursor.execute(
+                                        f"SELECT product_name, internal_ref_code, product_image_url "
+                                        f"FROM pg__dashboard_canifa__ultra_descriptions "
+                                        f"WHERE {like_clauses} LIMIT 5",
+                                        params
+                                    ).fetchall()
+                                    
+                                    if rows:
+                                        extracted_features_text += f"→ Đã tìm thấy {len(rows)} sản phẩm khớp chữ '{ocr_text}' trong SQLite:\n"
+                                        for r in rows:
+                                            extracted_features_text += f"   - [{r['internal_ref_code']}] {r['product_name']}\n"
+                                conn.close()
+                            except Exception as e:
+                                logger.error(f"Lỗi truy vấn SQLite OCR: {e}")
                 except Exception as e:
                     logger.error(f"Lỗi đọc ảnh cho Local Vision Model: {e}")
 

backend/agent/image_search_agent/vision_model.py

@@ -129,41 +129,71 @@ class LocalVisionModel:
             logger.error("Lỗi khởi tạo Vision Model: %s", e)
             self._classifier = None
             
+        # Khởi tạo RapidOCR siêu nhẹ
+        try:
+            from rapidocr_onnxruntime import RapidOCR
+            logger.info("Khởi tạo RapidOCR (ONNX) siêu nhẹ cho nhận diện chữ...")
+            self._ocr = RapidOCR()
+            logger.info("Đã khởi tạo thành công RapidOCR.")
+        except ImportError:
+            logger.warning("Chưa cài đặt RapidOCR. Chạy: uv pip install rapidocr-onnxruntime")
+            self._ocr = None
+
     def analyze_image(self, image_path: str) -> dict:
         """
         Analyze image at given path and extract fashion-specific features.
 
         Returns:
             dict with keys: success, features, confidence
-            features contains: raw_labels, category, color, style, all_categories
+            features contains: raw_labels, category, color, style, all_categories, ocr_text
         """
-        if not self._classifier:
-            return {"error": "Vision model chưa sẵn sàng. Vui lòng kiểm tra logs."}
-
         try:
             # 1. Load image
             img = Image.open(image_path).convert("RGB")
 
-            # 2. Classify via model
-            predictions = self._classifier(img)
+            category = "unknown"
+            color = "unknown"
+            style = "casual"
+            all_categories = []
+            top_tags = []
+            confidence = 1.0
 
-            # 3. Filter by confidence threshold
-            strong_predictions = [
-                p for p in predictions if p["score"] >= MIN_CONFIDENCE
-            ]
+            # 2. Classify via model (if available)
+            if self._classifier:
+                try:
+                    predictions = self._classifier(img)
+                    strong_predictions = [p for p in predictions if p["score"] >= MIN_CONFIDENCE]
                     if not strong_predictions:
-                strong_predictions = predictions[:1]  # Keep at least top-1
+                        strong_predictions = predictions[:1]
 
                     top_tags = [p["label"] for p in strong_predictions[:5]]
                     tags_str = " ".join(top_tags).lower()
 
-            # 4. Extract features using curated rules
                     category = self._match_first(tags_str, CATEGORY_RULES, "unknown")
                     color = self._match_first(tags_str, COLOR_RULES, "unknown")
                     style = self._match_first(tags_str, STYLE_RULES, "casual")
-
-            # Collect ALL matching categories (for multi-tag search)
                     all_categories = self._match_all(tags_str, CATEGORY_RULES)
+                    confidence = strong_predictions[0]["score"]
+                except Exception as e:
+                    logger.error("Lỗi khi phân loại ảnh: %s", e)
+
+            # 5. Extract Text via RapidOCR (ONNX CPU)
+            extracted_text = []
+            if self._ocr:
+                try:
+                    import numpy as np
+                    # Convert PIL RGB to OpenCV BGR format
+                    img_cv = np.array(img)
+                    img_cv = img_cv[:, :, ::-1].copy()
+                    
+                    ocr_result, _ = self._ocr(img_cv)
+                    if ocr_result:
+                        # ocr_result format: [[box, text, confidence], ...]
+                        for box, text, score in ocr_result:
+                            if score > 0.3:  # Độ tin cậy > 30% để lấy chữ in
+                                extracted_text.append(text)
+                except Exception as e:
+                    logger.error("Lỗi khi chạy RapidOCR: %s", e)
 
             extracted_features = {
                 "raw_labels": top_tags,
@@ -171,12 +201,13 @@ class LocalVisionModel:
                 "color": color,
                 "style": style,
                 "all_categories": all_categories,
+                "ocr_text": " ".join(extracted_text)
             }
 
             return {
                 "success": True,
                 "features": extracted_features,
-                "confidence": strong_predictions[0]["score"],
+                "confidence": confidence,
             }
         except Exception as e:
             logger.error("Lỗi khi phân tích ảnh: %s", e)

backend/test_ocr_vision.py

+import asyncio
+from PIL import Image, ImageDraw
+import base64
+import io
+
+def create_dummy_image_with_text():
+    # Create a blank black image
+    img = Image.new('RGB', (300, 300), color = (0, 0, 0))
+    d = ImageDraw.Draw(img)
+    # Add text "CANIFA" to the image
+    d.text((50, 150), "CANIFA", fill=(255, 255, 255))
+    
+    # Save to base64
+    buffered = io.BytesIO()
+    img.save(buffered, format="JPEG")
+    img_str = base64.b64encode(buffered.getvalue()).decode()
+    return img_str
+
+async def test():
+    print("Testing Image Vision OCR with SQLite...")
+    
+    img_b64 = create_dummy_image_with_text()
+    
+    from agent.image_search_agent.image_search_graph import get_image_search_agent
+    agent = get_image_search_agent()
+    
+    print("Running Image Search Agent...")
+    result = await agent.chat(user_message="Tìm cho tôi chiếc áo này", images=[img_b64])
+    
+    print("\n=== AI RESPONSE ===")
+    print(result.get("response"))
+    print("===================\n")
+    
+    print("--- Pipeline Trace ---")
+    for diag in result.get("pipeline", []):
+        print(f"Step: {diag.get('label')}")
+        if diag.get("step") == "user":
+             print(diag.get("content"))
+
+if __name__ == "__main__":
+    asyncio.run(test())
\ No newline at end of file

backend/uv.lock

+version = 1
+revision = 3
+requires-python = ">=3.14"