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import logging
import numpy as np
import streamlit as st
from PIL import Image
from streamlit_drawable_canvas import st_canvas
from src.ml_utils import predict, get_model, transforms
from src.utils import plot_img_with_rects, save_image
logging.info('Starting')
col1, col2 = st.columns(2)
with col1:
# Create a canvas component
canvas_result = st_canvas(
fill_color='#fff',
stroke_width=5,
stroke_color='#000',
background_color='#fff',
update_streamlit=True,
height=400,
width=400,
drawing_mode='freedraw',
key='canvas',
)
with col2:
logging.info('canvas ready')
if canvas_result.image_data is not None:
# convert a drawn image into numpy array with RGB from a canvas image with RGBA
img = np.array(Image.fromarray(np.uint8(canvas_result.image_data)).convert('RGB'))
image = transforms(image=img)['image']
logging.info('image augmented')
model = get_model()
logging.info('model ready')
pred = predict(model, image)
logging.info('prediction done')
file_name = save_image(image.permute(1, 2, 0).numpy(), pred)
threshold = st.slider('Bbox probability slider', min_value=0.0, max_value=1.0, value=0.5)
fig = plot_img_with_rects(image.permute(1, 2, 0).numpy(), pred, threshold, coef=192)
fig.savefig(f'{file_name}_temp.png')
image = Image.open(f'{file_name}_temp.png')
st.image(image)
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