def to_image_url(array, fmt='png', mode="data", quality=70, domain=None):
supported_modes = ("data")
if mode not in supported_modes:
message = "Unsupported mode '%s', should be one of '%s'."
raise ValueError(message, mode, supported_modes)
image_data = serialize_array(array, fmt=fmt, quality=quality)
base64_byte_string = base64.b64encode(image_data).decode('ascii')
return base64_byte_string
def image(array, domain=None, w=None, format='png', **kwargs):
"""Display an image.
Args:
array: NumPy array representing the image
fmt: Image format e.g. png, jpeg
domain: Domain of pixel values, inferred from min & max values if None
w: width of output image, scaled using nearest neighbor interpolation.
size unchanged if None
"""
image_data = serialize_array(array, fmt=format, domain=domain)
image = IPython.display.Image(data=image_data, format=format, width=w)
IPython.display.display(image)
def _image_url(array, fmt='png', mode="data", quality=90, domain=None):
"""Create a data URL representing an image from a PIL.Image.
Args:
image: a numpy
mode: presently only supports "data" for data URL
Returns:
URL representing image
"""
supported_modes = ("data")
if mode not in supported_modes:
message = "Unsupported mode '%s', should be one of '%s'."
raise ValueError(message, mode, supported_modes)
image_data = serialize_array(array, fmt=fmt, quality=quality)
base64_byte_string = base64.b64encode(image_data).decode('ascii')
return "data:image/" + fmt.upper() + ";base64," + base64_byte_string
