Yoshiteru, K.

Does your app enable GPU Delegate ? ``` delegate = TfLiteGpuDelegateV2Create(&options); interpreter->ModifyGraphWithDelegate(delegate) ``` https://github.com/terryky/tflite_gles_app/blob/master/common/util_tflite.cpp#L167-L174

I don't have any information about the db_keras.tflite you mentioned. The pre-processing and post-processing depend on the tflite model, so please ask the person who designed that model.

This model (dbface_keras_480x640_float32_nhwc.tflite) doesn't require anchors. The detected region can be obtained directly from the inference output. please refer the post processing code as below: https://github.com/terryky/android_tflite/blob/6a6d889e413d766b0d3cf656035ecb6341276e99/tflite_dbface/app/src/main/cpp/tflite_dbface.cpp#L83-L133

Yes, that's correct. Thank you.