solve #35 and #15

[eternal-flame-AD]

This pull request gave an solution to issue #35 and #15
for issue #15 I added a find_y_bias function to first search for the white line underneath the "home page" button to determine where the bottom of the app is.

[wangshub]

@eternal-flame-AD

• 代码少了 lint 检查，比如等号左右缺少空格
• 运行会报错，图片索引超出范围

正在从 /Users/kaboom/Desktop/python/fork/Douyin-Bot/config/1920x1080/config.json 加载配置文件
程序版本号：0.0.1
激活窗口并按 CONTROL + C 组合键退出
**********
Screen: Physical size: 1080x1920
Density: Physical density: 420
Device: OnePlus5
Phone OS: 8.1.0
Host OS: darwin
Python: 3.6.4 (default, Mar  9 2018, 23:15:03)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)]
**********
shell screencap -p /sdcard/autojump.png
pull /sdcard/autojump.png .
采用方式 0 获取截图
shell screencap -p /sdcard/autojump.png
pull /sdcard/autojump.png .
Traceback (most recent call last):
  File "douyin-bot.py", line 210, in <module>
    main()
  File "douyin-bot.py", line 156, in main
    find_y_bias()
  File "douyin-bot.py", line 97, in find_y_bias
    while not is_line(im, config['home_sel']['x1'], config['home_sel']['x2'], y, y+1, r=255, g=255, b=255):
  File "douyin-bot.py", line 91, in is_line
    if not pixel_match(im,x,y,r,g,b,diff):
  File "douyin-bot.py", line 72, in pixel_match
    pixel=im.getpixel((target_x,target_y))
  File "/usr/local/lib/python3.6/site-packages/PIL/Image.py", line 1282, in getpixel
    return self.im.getpixel(xy)
IndexError: image index out of range

[wangshub]

@eternal-flame-AD 请遵从 pep8 规范

[eternal-flame-AD]

我回去看下为啥找不到-_-#
我的手机和模拟器都找得到

[eternal-flame-AD]

@wangshub 现在应该修复了

[eternal-flame-AD]

抱歉之前自测的时候HEAD位置忘了回到最近了

[wangshub]

@eternal-flame-AD 我运行，在识别到人脸的时候，还是报错

[eternal-flame-AD]

识别人脸那段没改呀？

[eternal-flame-AD]

我在一台有虚拟按键 一台没有虚拟按键的设备上测试都可以正常运行
或者有一种可能我以前也遇到过，是不是手机上有色温滤镜（过滤蓝光）的功能改变了屏幕的颜色导致无法识别？

[wangshub]

@eternal-flame-AD 我有时间看下你的代码

[msterzhang]

@wangshub ，我觉得人脸提取那部分可以优化，可以参考我这个代码https://github.com/msterzhang/douyinAi，总的代码200行不到就OK

[eternal-flame-AD]

@msterzhang This is unrelated to this specific pull request, maybe you can open a new issue or PR to propose your improvements. Thanks

[wangshub]

我先合到 dev 分支，有问题再改 @eternal-flame-AD