adjust_brightness¶

paddle.vision.transforms. adjust_brightness ( img, brightness_factor ) [source]

Adjusts brightness of an Image.

Parameters

• img (PIL.Image|np.array|paddle.Tensor) – Image to be adjusted.

• brightness_factor (float) – How much to adjust the brightness. Can be any non negative number. 0 gives a black image, 1 gives the original image while 2 increases the brightness by a factor of 2.

Returns

Brightness adjusted image.

Return type

PIL.Image|np.array|paddle.Tensor

Examples

 import numpy as np
 from PIL import Image
 from paddle.vision.transforms import functional as F

 fake_img = (np.random.rand(256, 300, 3) * 255.).astype('uint8')

 fake_img = Image.fromarray(fake_img)
 print(fake_img.size) # (300, 256)
 print(fake_img.load()[1,1]) # (95, 127, 202)
 converted_img = F.adjust_brightness(fake_img, 0.5)
 print(converted_img.size) # (300, 256)
 print(converted_img.load()[1,1]) # (47, 63, 101)