Update app.py

app.py

@@ -10,6 +10,7 @@ from transformers import pipeline
 import chromadb
 from sklearn.metrics.pairwise import euclidean_distances  
 from sklearn.preprocessing import normalize
+from sklearn.metrics.pairwise import cosine_similarity
 
 # Load segmentation model
 segmenter = pipeline(model="mattmdjaga/segformer_b2_clothes")