import cv2, matplotlib.pyplot as plt
img = cv2.imread('imgs_soccer/soccer_10.jpg',cv2.IMREAD_COLOR)
img = cv2.resize(img, (128, 128))
plt.imshow(img)
plt.show()

image_gen = ImageDataGenerator(rotation_range=15,
                           width_shift_range=0.1,
                           height_shift_range=0.1,
                           shear_range=0.01,
                           zoom_range=[0.9, 1.25],
                           horizontal_flip=True,
                           vertical_flip=False,
                           fill_mode='reflect',
                           data_format='channels_last',
                           brightness_range=[0.5, 1.5])

image_gen.flow(img)

'Input data in `NumpyArrayIterator` should have rank 4. You passed an array with shape', (128, 128, 3))