cell_loader_ctrl/playgrounds/camera_playground.py

from picamera2 import Picamera2
import cv2

def main():
    picam2 = Picamera2()
    picam2.configure(picam2.create_preview_configuration(main={"format": "BGR888", "size": (640, 480)}))
    picam2.start()

    x, y, w, h = [290, 260, 240, 170]

    print("Type 's' to save a still image. Type 'q' to quit.")
    while True:
        cmd = input("Command [s/q]: ").strip().lower()
        if cmd == 's':
            frame = picam2.capture_array()
            frame = frame[y:y+h, x:x+w]
            cv2.imwrite("still_image.jpg", frame)
            print("Saved still_image.jpg")
        elif cmd == 'q':
            break

    picam2.stop()

if __name__ == "__main__":
    main()