opencv-toasty-animation

python_opencv_toasty_animation

Requirements

opencv-contrib-python 4.10.0.82 playsound 1.3.0

Installation

Install with pip

pip install opencv-toasty-animation

Usage

Add these lines before the main loop to instantiate animation

animation = Animation()

Then before the cv2.imshow('Video', frame) execution add these

animation.update_animation_state()
frame = animation.apply_animation(frame)

The animation now is ready to be played, now you need to choice an event to fire the start. Anywhere in the main loop add this line

animation.start()

Optionally you can pass the prevent_repetition=True argument if the animation play too many times in the loop to control the repetition. By default it doesn't play until 300 seconds passed. You can change it passing repetition_delay=300 in the arguments during the instantiation of the animation.

How to try it

Create a python file and copy this code, then run it and hit "start" button

import cv2

from opencv_toasty_animation.animation import Animation


# Función para manejar los eventos del mouse
def mouse_callback(event, x, y, flags, param):
    global mouseX, mouseY, start_animation, animation_phase

    if event == cv2.EVENT_LBUTTONDOWN:
        mouseX, mouseY = x, y
        # Coordenadas del botón
        button_rect = param
        # Verificar si el clic ocurrió dentro del botón
        if button_rect[0] <= mouseX <= button_rect[2] and button_rect[1] <= mouseY <= button_rect[3]:
            animation.start()


# Captura de video desde la webcam
cap = cv2.VideoCapture(0)

# Verificar si la cámara se abrió correctamente
if not cap.isOpened():
    print("No se puede abrir la cámara")
    exit()

# Variables para almacenar la posición del clic
mouseX, mouseY = 0, 0

# Coordenadas del botón (rectángulo)
button_rect = (50, 50, 150, 100)  # (x1, y1, x2, y2)

# Configurar la ventana de OpenCV para capturar eventos del mouse
cv2.namedWindow('Webcam')
cv2.setMouseCallback('Webcam', mouse_callback, button_rect)

animation = Animation()

try:
    while True:
        ret, frame = cap.read()

        if not ret:
            print("No se puede recibir frames. Terminando...")
            break

        # Dibujar el botón (rectángulo) en el frame
        cv2.rectangle(frame, (button_rect[0], button_rect[1]),
                    (button_rect[2], button_rect[3]), (0, 0, 255), cv2.FILLED)
        cv2.putText(frame, "Start", (button_rect[0] + 10, button_rect[1] + 30),
                    cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255), 2)

        # Actualizar el estado de la animación y aplicar la animación al frame
        animation.update_animation_state()
        frame = animation.apply_animation(frame)

        # Mostrar el frame con la animación
        cv2.imshow('Webcam', frame)

        # Finalizar la animación y esperar a que se presione 'q' para salir
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

finally:
    cap.release()
    cv2.destroyAllWindows()