Replace tf.repeat with tf.tile for better compatibility.

Fix #286

PiperOrigin-RevId: 307888162

Author: mingxingtan

efficientdet/anchors.py

@@ -335,7 +335,7 @@ def _generate_detections_tf(cls_outputs,
   width = boxes[:, 3] - boxes[:, 1]
 
   detections = tf.stack([
-      tf.cast(tf.repeat(image_id, tf.size(top_detection_idx)), tf.float32),
+      tf.cast(tf.tile(image_id, [tf.size(top_detection_idx)]), tf.float32),
       boxes[:, 0] * image_scale,
       boxes[:, 1] * image_scale,
       height * image_scale,

efficientdet/model_inspect.py

@@ -188,7 +188,6 @@ def saved_model_inference(self, image_path_pattern, output_dir, **kwargs):
       batch_files = all_files[i * batch_size: (i + 1) * batch_size]
       raw_images = [np.array(Image.open(f)) for f in batch_files]
       detections_bs = driver.serve_images(raw_images)
-      print(len(raw_images), len(detections_bs))
       for j in range(len(raw_images)):
         img = driver.visualize(raw_images[j], detections_bs[j], **kwargs)
         img_id = str(i * batch_size + j)