Color style of opencv image effects

#颜色风格
import cv2
import numpy as np
img = cv2.imread("E:/code/conputer_visual/data/0.jpg", 1)
imginfo = img.shape
height = imginfo[0]
width = imginfo[1]
cv2.imshow("src", img)
# b = b * 1.5 ,g = g * 1.3  增强蓝色和绿色
dst = np.zeros((height, width, 3), np.uint8)
for i in range(height):
    for j in range(width):
        (b,g,r) = img[i,j]
        b = b * 1.5
        g = g * 1.3
        if b > 255:
            b = 255
        if g > 255:
            g = 255
        dst[i,j] = (b,g,r)
cv2.imshow("dst", dst)
cv2.waitKey()