optimized_clips = []
for img_path in image_files:
    clip = (ImageClip(img_path)
            .set_duration(duration_per_image)
            .resize(height=480)  # Reducimos resolución
            .fadein(0.3)
            .fadeout(0.3))
    optimized_clips.append(clip)

# Concatenar los clips
optimized_video = concatenate_videoclips(optimized_clips, method="compose")

# Exportar el video optimizado
optimized_output_path = "/mnt/data/feliz_cumple_sin_texto_optimizado.mp4"
optimized_video.write_videofile(optimized_output_path, fps=24)