Python numpy questions Rossy conversion from float64 to uint8

from scipy.miscimportimread,imsave,imresize

img = imread('cat.jpg')
print(img.dtype, img.shape)  

img_tinted = img * [1, 0.95, 0.9]
img_tinted = imresize(img_tinted, (300, 300))
imsave('cat_tinted.jpg', img_tinted)

from imageio import read, write
from skimage.transform import resize 

img = imread ('cat.jpg') #Reads the image in an array
print (img.dtype, img.shape) #data type, size output

img_tinted = img * [1,0.95, 0.9] #ColorChannel is multiplied by a constant value to change color (RGB)

image_tinted = resize(img_tinted, (300, 300)) #colorchangeimage pixel size change

imwrite('cat_tinted.jpg',img_tinted) #Write to complete