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是这样的，本人小白一枚，最近有一个想法，想用python做上位机 C51做下位机做一台激光打印机，两个我都刚学不久，所以都不太了解，图像处理我用了抖动算法，效果也比较理想，但如何通过串口将图片发给下位机，真的做不出来，求大佬指点

附上编好的程序

import cv2 as cv

import serial

#读取图片

import numpy as np

cv.namedWindow('img')

def nothing(x):

pass

cv.createTrackbar('value','img',127,255,nothing)

while(True):

img = cv.imread("2.jpg", 0)

(imgHeight, imgWidth) = img.shape

value=cv.getTrackbarPos('value','img')

print('value:',value)

for i in range(0,imgHeight):

for j in range(0,imgWidth):

if img[i, j] > value:

err = img[i, j] - 255

img[i, j] = 255

else:

err = img[i, j]- 0

img[i, j] = 0

a = (err * 7) / 16

b = (err * 1) / 16

c = (err * 5) / 16

d = (err * 3) / 16

if (i!= (imgHeight-1))and(j != 0)and(j != (imgWidth-1)):

img[i + 0, j + 1] = img[i + 0, j + 1] + int(a)

img[i + 1, j + 1] = img[i + 1, j + 1] + int(b)

img[i + 1, j + 0] = img[i + 1, j + 0] + int(c)

img[i + 1, j - 1] = img[i + 1, j - 1] + int(d)

print(img)

print('change ok')

cv.imshow("img",img)

cv.waitKey(0)

print('button ok')

cv.imwrite("E://2.jpg",img)