return image with blur,sepia,reflect or grayscal filter ; Implement the functions in helpers.c such that a user can apply grayscale, sepia, reflection, or blur filters to their images.
The function grayscale should take an image and turn it into a black-and-white version of the same image.
The function sepia should take an image and turn it into a sepia version of the same image.
The reflect function should take an image and reflect it horizontally.
Finally, the blur function should take an image and turn it into a box-blurred version of the same image.