import streamlit as st
import tensorflow as tf
import numpy as np

# Setting random seed to obtain reproducible results.
tf.random.set_seed(42)

# Initialize global variables.
AUTO = tf.data.AUTOTUNE
BATCH_SIZE = 1
NUM_SAMPLES = 32
POS_ENCODE_DIMS = 16
EPOCHS = 30
H = 50
W = 50 
focal = 0.6911112070083618