Update app.py

app.py

@@ -69,6 +69,7 @@ async def predict(file: UploadFile = File(...)):
         contents = await file.read()
         image = Image.open(BytesIO(contents)).convert('L')
         image = np.asarray(image)
+        image = cv2.resize(image, (256, 256), interpolation=cv2.INTER_AREA)
         if image.shape != (256, 256):
             raise ValueError("La imagen debe ser de tamaño 256x256.")
         image = image.reshape(256, 256, 1)