?ocr接口推荐
??????? https://ocr.space/OCRAPI
??????? 支持多种语言 示例 ocrspace.py 支持本地路径或网络路径
def ocr_space_file(filename, overlay=False, api_key='helloworld', language='eng'):
""" OCR.space API request with local file.
Python3.5 - not tested on 2.7
:param filename: Your file path & name.
:param overlay: Is OCR.space overlay required in your response.
Defaults to False.
:param api_key: OCR.space API key.
Defaults to 'helloworld'.
:param language: Language code to be used in OCR.
List of available language codes can be found on https://ocr.space/OCRAPI
Defaults to 'en'.
:return: Result in JSON format.
"""
payload = {'isOverlayRequired': overlay,
'apikey': api_key,
'language': language,
}
with open(filename, 'rb') as f:
r = requests.post('https://api.ocr.space/parse/image',
files={filename: f},
data=payload,
)
return r.content.decode()设计界面用vb插件
https://github.com/cdhigh/tkinter-designer
安装程序注册或手动注册
运行regsvr32 /s TkinerDesigner.dll
在C:\Windows\VBADDIN.INI的段[Add-Ins32]增加一行：
TkinterDesigner.Connect=3
language 语言文件有的话可以切换语言，没有的话就一种默认语言
TextBox Python文本框有两种：Entry和Text，如果VB的TextBox的MultiLine=False，则 生成Entry，否则生成Text。
ComboBox 组合框在Tkinter中没有对应的控件，比较类似的只有OptionMenu，类似ComboBox 的Style=2 (Dropdown List)时的表现，一个下拉列表，只能在列表中选择一个值， 不能直接输入。所以建议在VB的ComboBox中写下所有的下拉列表值。 如果启用了TTK主题扩展库支持，则直接对应到TTK的Combobox，外形和行为基本 一致
准备框架
在vb中画好界面输出py文件使用 为了以后升级，可以把ui部分和按钮调用部分分到2个文件 ui.py 和 ocrspacevb.py 本程序很简单，就是选择一个文件，调用space的ocr接口，得到返回json展示到文本框
from tkinter import *
from tkinter.ttk import *
class Application_ui(Frame):
# 这个类仅实现界面生成功能，具体事件处理代码在子类Application中。
def __init__(self, master=None):
Frame.__init__(self, master)
self.master.title('测试ocr')
w=800
h=340
ws = self.master.winfo_screenwidth()
hs = self.master.winfo_screenheight()
x = (ws / 2) - (w / 2)
y = (hs / 2) - (h / 2)
self.master.geometry('%dx%d+%d+%d' % (w,h,x,y))
# self.master.geometry('800x339')
self.createWidgets()
def createWidgets(self):
self.top = self.winfo_toplevel()
self.style = Style()
self.Label1Var = StringVar(value='文件')
self.style.configure('TLabel1.TLabel', anchor='w', font=('宋体', 9))
self.Label1 = Label(self.top, text='Label1', textvariable=self.Label1Var, style='TLabel1.TLabel')
self.Label1.setText = lambda x: self.Label1Var.set(x)
self.Label1.text = lambda: self.Label1Var.get()
self.Label1.place(relx=0.056, rely=0.024, relwidth=0.15, relheight=0.074)
self.Text1Var = StringVar(value='Text1')
self.Text1 = Entry(self.top, textvariable=self.Text1Var, font=('宋体', 9))
self.Text1.setText = lambda x: self.Text1Var.set(x)
self.Text1.text = lambda: self.Text1Var.get()
self.Text1.place(relx=0.241, rely=0.024, relwidth=0.521, relheight=0.074)
self.Command1Var = StringVar(value='选择')
self.style.configure('TCommand1.TButton', font=('宋体', 9))
self.Command1 = Button(self.top, text='选择', textvariable=self.Command1Var, command=self.Command1_Cmd, style='TCommand1.TButton')
self.Command1.setText = lambda x: self.Command1Var.set(x)
self.Command1.text = lambda: self.Command1Var.get()
self.Command1.place(relx=0.796, rely=0.024, relwidth=0.123, relheight=0.097)
self.Command2Var = StringVar(value='退出')
self.style.configure('TCommand2.TButton', font=('宋体', 9))
self.Command2 = Button(self.top, text='退出', textvariable=self.Command2Var, command=self.Command2_Cmd, style='TCommand2.TButton')
self.Command2.setText = lambda x: self.Command2Var.set(x)
self.Command2.text = lambda: self.Command2Var.get()
self.Command2.place(relx=0.796, rely=0.826, relwidth=0.123, relheight=0.097)
self.Text2 = Text(self.top, font=('宋体', 9))
self.Text2.setText = lambda x: self.Text2.insert(INSERT,x)
self.Text2.text = lambda: self.Text2.get(1.0,END).strip().replace("\n","")
self.Text2.place(relx=0.037, rely=0.142, relwidth=0.688, relheight=0.805)
self.Command3Var = StringVar(value='识别')
self.style.configure('TCommand3.TButton', font=('宋体', 9))
self.Command3 = Button(self.top, text='识别', textvariable=self.Command3Var, command=self.Command3_Cmd, style='TCommand3.TButton')
self.Command3.setText = lambda x: self.Command3Var.set(x)
self.Command3.text = lambda: self.Command3Var.get()
self.Command3.place(relx=0.796, rely=0.142, relwidth=0.123, relheight=0.097)如上是界面，如下是调用处理
import json
import requests
from ui import *
from tkinter import *
from tkinter.messagebox import *
import tkinter.filedialog as tkFileDialog
class Application(Application_ui):
# 这个类实现具体的事件处理回调函数。界面生成代码在Application_ui中。
def __init__(self, master=None):
Application_ui.__init__(self, master)
def Command1_Cmd(self, event=None):
filepath = tkFileDialog.askopenfilename(filetypes=[("JPG", ".jpg"), ("PNG", ".png"), ("GIF", ".gif")], title="选择图片文件")
self.Text1.setText(filepath)
pass
def Command2_Cmd(self, event=None):
e = askyesno(title='退出确认', message='请问是否要退出？')
if e:
self.quit()
def Command3_Cmd(self, event=None):
# test_file = ocrspace.ocr_space_file(filename=self.Text1.text(), language='chs')
test_file = '{"ParsedResults":[{"TextOverlay":{"HasOverlay":false,"Message":"Text overlay is not provided as it is not requested"},"TextOrientation":"0","FileParseExitCode":1,' \
'"ParsedText":"中国电信\r\n《16：04\r\n海航移动\r\n苏康码\r\n0苏康码\r\n上官雄哥\r\n320******517\r\n若您有近14天匚\r\n04一0916：03：26\r\n绿色：勤洗手、常通风、戴口罩，出现发热咳嗽等\r\n症状请及时就医\r\n","ErrorMessage":"",' \
'"ErrorDetails":""}],"OCRExitCode":1,"IsErroredOnProcessing":false,"ProcessingTimeInMilliseconds":"640","SearchablePDFURL":"Searchable PDF not generated as it was not requested."}'
test_file = test_file.replace('\r\n', '#')
contents = json.loads(test_file)["ParsedResults"]
for content in contents: # 遍历所有结果
txt = content['ParsedText'].strip()
txt = txt.split('#')
name=''
color=''
for line in txt:
if line.find('***') > 0 and len(name) < 1:
name=color
color=line
if color.find('色')>-1:
color=color[:color.find('色')]
print(color) # strip去除空格 他返回的结果自带一个换行
self.Text2.setText(name+' '+color)
if __name__ == "__main__":
top = Tk()
Application(top).mainloop()其中test_file就是识别到字符串，得到后就保存成字符串调试了，没有反复调用http接口，节省资源
顺便记录一下手动安装python的方法吧
wget https://www.python.org/ftp/python/3.8.2/Python-3.8.2.tgz （这里的链接以实际链接为准） 然后等到下载完成 在终端输入： tar -zxvf Python-3.8.2.tgz （这里以实际文件名为准） 第三步，配置makefile文件并编译 （以下$皆表示终端，不用输入$） $ cd Python-3.8.2 (这是解压出来的目录) $ ./configure --enable-optimizations (在下面这步嘛，过个5-10分钟左右就可以看到要输入密码了) $ make -j8 && sudo make altinstall 注:需要重新编译时... $ sudo make clean 最后文件在/usr/local/bin/python3.7
