Perf: 提升可视化图片清晰度(max_h 300/400->600, JPEG quality 85->95)

app.py

@@ -557,7 +557,7 @@ def _build_complex_vis_from_cache(log_entry, image_cache):
         orig_h1, orig_w1 = img1.shape[:2]
         orig_h2, orig_w2 = img2.shape[:2]
 
-        max_h = 400
+        max_h = 600
         scale1 = max_h / orig_h1
         scale2 = max_h / orig_h2
         img1_disp = cv2.resize(img1, (int(orig_w1*scale1), max_h))
@@ -608,7 +608,7 @@ def _build_complex_vis_from_cache(log_entry, image_cache):
         n_matches = len(matches)
         avg_sim = sum(s for _, _, s in matches) / max(n_matches, 1)
 
-        _, buffer = cv2.imencode('.jpg', canvas, [cv2.IMWRITE_JPEG_QUALITY, 85])
+        _, buffer = cv2.imencode('.jpg', canvas, [cv2.IMWRITE_JPEG_QUALITY, 95])
         img_b64 = base64.b64encode(buffer).decode('utf-8')
 
         return {
@@ -654,7 +654,7 @@ def _build_text_vis_from_cache(log_entry, image_cache):
         diff_words1 = words1 - words2
         diff_words2 = words2 - words1
 
-        max_h = 300
+        max_h = 600
         scale1 = max_h / img1.shape[0]
         scale2 = max_h / img2.shape[0]
         img1_s = cv2.resize(img1, (int(img1.shape[1]*scale1), max_h))
@@ -687,7 +687,7 @@ def _build_text_vis_from_cache(log_entry, image_cache):
         common_list = sorted(common_words)[:20]
 
         canvas = cv2.cvtColor(np.array(pil_img), cv2.COLOR_RGB2BGR)
-        _, buffer = cv2.imencode('.jpg', canvas, [cv2.IMWRITE_JPEG_QUALITY, 85])
+        _, buffer = cv2.imencode('.jpg', canvas, [cv2.IMWRITE_JPEG_QUALITY, 95])
         img_b64 = base64.b64encode(buffer).decode('utf-8')
 
         return {
@@ -864,7 +864,7 @@ def _run_demo_pipeline(img_paths, expected_scene):
             img = cv2.imdecode(data, cv2.IMREAD_COLOR)
             if img is None:
                 return None
-            _, buf = cv2.imencode('.jpg', img, [cv2.IMWRITE_JPEG_QUALITY, 85])
+            _, buf = cv2.imencode('.jpg', img, [cv2.IMWRITE_JPEG_QUALITY, 95])
             return f'data:image/jpeg;base64,{base64.b64encode(buf).decode("utf-8")}'
         except Exception:
             return None