西瓜视频百万英雄有奖竞答一类直播节目的ocr工具。实现的功能，通过adb获取截图，然后ocr出文字，并通过浏览器打开搜索结果。

xiguashipin.py

import pytesseract
import time
from PIL import Image
import os
import webbrowser
path = "/home/find/d/filerecv/xigua.png"
import subprocess

def get_screen_shot(path):
# 这里获取截图，目前的方法太慢了
    # p = subprocess.Popen('adb shell screencap -p | sed s/\\r$// >  ' + path, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    p = subprocess.Popen('adb shell /system/bin/screencap -p /sdcard/screenshot.png ', shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
# 需要等两秒，否则数据出错
    time.sleep(2)
    p = subprocess.Popen('adb pull /sdcard/screenshot.png ' + path, shell=True,
                         stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    for line in p.stdout.readlines():
        print(line)
    retval = p.wait()


def crop_img(path):
    # open image
    image = Image.open(path)
    # 图片的宽度和高度
    img_size = image.size
    print("图片宽度和高度分别是{}".format(img_size))
    height = img_size[1]
    width = img_size[0]

    height_margin_top = height * 0.1
    height_margin_bottom = height * 0.7
    width_margin = width * 0.1
    width_margin = width * 0.1
    new_image = image.crop((0, height_margin_top, width, height_margin_bottom))
    new_image.save("a.png")
    return new_image


def ocr(img):
    # @todo 这个api识别太慢了
    code = pytesseract.image_to_string(img, lang='chi_sim')
    print(code)
    # text = code.split("\n")[0]
    text = code.replace("\n", " ")
    return text


def work():
    get_screen_shot(path)
    img = crop_img(path)
# 目前只是简单的打开浏览器百度结果
    webbrowser.open('https://www.baidu.com/s?wd=%s' % ocr(img))


work()