app.py

import streamlit as st
from PIL import Image, ImageDraw

from streamlit_image_coordinates import streamlit_image_coordinates

import numpy as np

from datasets import load_dataset

ds = load_dataset("Circularmachines/batch_indexing_machine_100_small_imgs", split="train")






#st.set_page_config(
#    page_title="Streamlit Image Coordinates: Image Update",
#    page_icon="🎯",
#    layout="wide",
#)

#"# :dart: Streamlit Image Coordinates: Image Update"

if "points" not in st.session_state:
    st.session_state["points"] = []


#"## Click on image"

r=0#np.random.randint(100)
current_image=ds[0]['image']

def button_click():
    r=np.random.randint(100)
    #current_image=ds[r]['image']
    st.write(str(r))
    st.session_state["points"] = []


with ds[r]['image'] as img:
    draw = ImageDraw.Draw(img)

    def get_ellipse_coords(point):# tuple[int, int]) -> tuple[int, int, int, int]):
        center = point
        radius = 16
        return (
            center[0] - radius,
            center[1] - radius,
            center[0] + radius,
            center[1] + radius,
        )


    # Draw an ellipse at each coordinate in points
    for point in st.session_state["points"]:
        coords = get_ellipse_coords(point)
        draw.rectangle(coords, outline="green",width=2)

    value = streamlit_image_coordinates(img, key="pil")

    if value is not None:
        point = value["x"], value["y"]

        if point not in st.session_state["points"]:
            st.session_state["points"]=[point]
            st.experimental_rerun()


    st.button('Random frame', on_click=button_click)


#else:
#    st.write('Gohuhuhubye')