23A477L / app.py
mathslearn's picture
second commit
b8d145d verified
raw
history blame
2.86 kB
import matplotlib.pyplot as plt
import numpy as np
from six import BytesIO
from PIL import Image
import tensorflow as tf
from object_detection.utils import label_map_util
from object_detection.utils import visualization_utils as viz_utils
from object_detection.utils import ops as utils_op
import tarfile
import wget
import gradio as gr
from huggingface_hub import snapshot_download
import os
PATH_TO_LABELS = 'data/label_map.pbtxt'
category_index = label_map_util.create_category_index_from_labelmap(PATH_TO_LABELS, use_display_name=True)
def pil_image_as_numpy_array(pilimg):
img_array = tf.keras.utils.img_to_array(pilimg)
img_array = np.expand_dims(img_array, axis=0)
return img_array
def load_image_into_numpy_array(path):
image = None
image_data = tf.io.gfile.GFile(path, 'rb').read()
image = Image.open(BytesIO(image_data))
return pil_image_as_numpy_array(image)
def load_model():
download_dir = snapshot_download(REPO_ID)
saved_model_dir = os.path.join(download_dir, "saved_model")
detection_model = tf.saved_model.load(saved_model_dir)
return detection_model
def load_model2():
wget.download("https://nyp-aicourse.s3-ap-southeast-1.amazonaws.com/pretrained-models/balloon_model.tar.gz")
tarfile.open("balloon_model.tar.gz").extractall()
model_dir = 'saved_model'
detection_model = tf.saved_model.load(str(model_dir))
return detection_model
# samples_folder = 'test_samples
# image_path = 'test_samples/sample_balloon.jpeg
#
def predict(pilimg):
image_np = pil_image_as_numpy_array(pilimg)
return predict2(image_np)
def predict2(image_np):
results = detection_model(image_np)
# different object detection models have additional results
result = {key:value.numpy() for key,value in results.items()}
label_id_offset = 0
image_np_with_detections = image_np.copy()
viz_utils.visualize_boxes_and_labels_on_image_array(
image_np_with_detections[0],
result['detection_boxes'][0],
(result['detection_classes'][0] + label_id_offset).astype(int),
result['detection_scores'][0],
category_index,
use_normalized_coordinates=True,
max_boxes_to_draw=200,
min_score_thresh=.60,
agnostic_mode=False,
line_thickness=2)
result_pil_img = tf.keras.utils.array_to_img(image_np_with_detections[0])
return result_pil_img
REPO_ID = "mathslearn/mytfodmodel"
detection_model = load_model()
# pil_image = Image.open(image_path)
# image_arr = pil_image_as_numpy_array(pil_image)
# predicted_img = predict(image_arr)
# predicted_img.save('predicted.jpg')
gr.Interface(fn=predict,
inputs=gr.Image(type="pil"),
outputs=gr.Image(type="pil")
).launch(share=True)