40. 浮雕效果

import cv2
import numpy as np
import random
import math

img = cv2.imread('1.jpg', 1) 
imgInfo = img.shape
height = imgInfo[0]
width = imgInfo[1]
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

dst = np.zeros((height, width, 1), np.uint8)
for i in range(0, height):
    for j in range(0, width - 1):
        grayP0 = int(gray[i, j])
        grayP1 = int(gray[i, j + 1])
        newP = grayP0 - grayP1 + 150
        if newP > 255:
            newP = 255
        if newP < 0:
            newP = 0
        dst[i, j] =  newP

cv2.imshow('src', img)
cv2.imshow('dst', dst)
cv2.waitKey(0)

浮雕效果如下：