Convert images to ASCII.

# To read an image from a file and print in ASCII:
asciiart <path/to/image.jpg>

# To read an image from a URL and print in ASCII:
asciiart <www.example.com/image.jpg>

# To choose the output width (default is 100):
asciiart -width <50> <path/to/image.jpg>

# To colorize the ASCII output:
asciiart --color <path/to/image.jpg>

# To choose the output format (default format is text):
asciiart --format <text|html> <path/to/image.jpg>

# To invert the character map:
asciiart --invert-chars <path/to/image.jpg>