def __init__(self, factor=1.0):
"""
Args:
factor: Factor by which to brighten the image, a nonnegative number.
0.0 returns a black image, 1.0 returns the original image, and
higher values return brighter images.
"""
BaseFilter.__init__(self)
if factor < 0:
raise ValueError("'factor' must be a nonnegative number")
self.factor = factor
def process(self, image):
"""
Args:
image: The image to process.
Returns:
a single image, or a list containing one or more images.
"""
BaseFilter.process(self, image)
brightnessEnhancer = ImageEnhance.Brightness(image.split()[0])
newImage = brightnessEnhancer.enhance(self.factor)
newImage.putalpha(image.split()[1])
return newImage
def process(self, image):
"""
Args:
image: The image to process.
Returns:
a single image, or a list containing one or more images.
"""
BaseFilter.process(self, image)
brightnessEnhancer = ImageEnhance.Brightness(image.split()[0])
newImage = brightnessEnhancer.enhance(self.factor)
newImage.putalpha(image.split()[1])
return newImage
