相信大家都知道mathpix吧
一款特别的牛逼的img2latex软件
如果有小伙伴不知道的话可以看我之前的博客
超级利器——mathpix 文本、图片公式转md/latex格式
牛逼虽说是牛逼，但是对于普通的用户来说每个月只有50次免费的机会
剩下的还得靠克金……
让我们看一下官网的价格
虽说这几天美元贬值，但是算下来还是得每月二三十
像我这样节俭的人
……对，我就是穷，能把我咋滴( ﹁ ﹁ ) ~→
但是官方还是非常友好的，开放了API，让像我这样的开发者（qb）有了机遇
看一下API的价格
每个月前1000次免费！！！
这对于普通人来说真的够用了
下面我通过调用官方给出的API写了个精简版的mathpix snipping
本来还写了latex2img的部分，但是运行的不太稳定
已经把那部分注释掉了，思路是用matplotlib中的自带的显示latex公式，然后将横纵坐标轴去掉
plt.text然后调整一下文字的显示位置和文字的大小等属性
话不多说直接上动画
看起来效果还不错
下面就是教学时间了
先注册一个mathpix的账号
https://dashboard.mathpix.com/login
然后需要接受一个激活的协议
下面就是输入信用卡激活了
之后就可以看到账户的信息啦
这两个我们待会要用到
接下来就要调用接口了
这里给出官方的接口文档https://docs.mathpix.com
还有有一些API的示例
https://github.com/Mathpix/api-examples
我用的是python实现的，用pyqt5 做UI界面，再用qss加了一定的美化
import sysimport osimport base64import requestsimport jsonimport PyQt5.QtGuiimport PyQt5.QtCorefrom PyQt5.QtWidgets import QApplication, QLabel, QPushButton, QWidget, QGridLayout, QLineEditfrom PyQt5.QtCore import Qtfrom PIL import ImageGrabimport pyperclipimport matplotlib.pyplot as pltenv = os.environdefault_headers = { 'app_id': env.get('APP_ID', '你的APP_ID'), 'app_key': env.get('APP_KEY', '你的APP_KEY'), 'Content-type': 'application/json'}service = 'https://api.mathpix.com/v3/latex' # # Return the base64 encoding of an image with the given filename. # def image_uri(self,filename): image_data = open(filename, "rb").read() return "data:image/jpg;base64," base64.b64encode(image_data).decode() # Call the Mathpix service with the given arguments, headers, and timeout. def latex(self,args, headers=default_headers, timeout=30): r = requests.post(service, data=json.dumps(args), headers=headers, timeout=timeout) return json.loads(r.text) def convert(self): r = self.latex({ 'src':self.image_uri(r".\img\equa.png"), 'formats': ['latex_simplified'] }) print(r['latex_simplified']) latex1 = r['latex_simplified'] latex2 = '$' latex1 '$' latex3 = '$$' latex1 '$$' self.Latex1Edit.setText(latex1) self.Latex2Edit.setText(latex2) self.Latex3Edit.setText(latex3) # # 识别剪贴板公式 # def grapclipboard(self): im = ImageGrab.grabclipboard() im.save(r'.\img\equa.png', 'PNG') self.imgLable.setPixmap(PyQt5.QtGui.QPixmap(r'.\img\equa.png'))# coding:utf-8import sysimport osimport base64import requestsimport jsonimport PyQt5.QtGuiimport PyQt5.QtCorefrom PyQt5.QtWidgets import QApplication, QLabel, QPushButton, QWidget, QGridLayout, QLineEditfrom PyQt5.QtCore import Qtfrom PIL import ImageGrabimport pyperclipimport matplotlib.pyplot as pltenv = os.environdefault_headers = { 'app_id': env.get('APP_ID', '你的APP_ID'), 'app_key': env.get('APP_KEY', '你的APP_KEY'), 'Content-type': 'application/json'}service = 'https://api.mathpix.com/v3/latex'class Img2Latex(QWidget): def __init__(self): super().__init__() self.initUI() def initUI(self): self.setGeometry(300, 300, 800, 700) self.setWindowTitle('Img2Latex') # copy latex self.Latex1copyBtn = QPushButton() self.Latex2copyBtn = QPushButton() self.Latex3copyBtn = QPushButton() # set copy btn icon self.Latex1copyBtn.setIcon(PyQt5.QtGui.QIcon(r".\img\copy.png")) self.Latex2copyBtn.setIcon(PyQt5.QtGui.QIcon(r".\img\copy.png")) self.Latex3copyBtn.setIcon(PyQt5.QtGui.QIcon(r".\img\copy.png")) # edit latex self.Latex1EditBtn = QPushButton() self.Latex2EditBtn = QPushButton() self.Latex3EditBtn = QPushButton() # set edit btn icon self.Latex1EditBtn.setIcon(PyQt5.QtGui.QIcon(r".\img\edit.png")) self.Latex2EditBtn.setIcon(PyQt5.QtGui.QIcon(r".\img\edit.png")) self.Latex3EditBtn.setIcon(PyQt5.QtGui.QIcon(r".\img\edit.png")) # img to latex convert btn self.img2latexBtn = QPushButton('convert') # show the picture on clipboard self.imgLable = QLabel() # show the formula in latex self.Latex1Edit = QLineEdit() self.Latex2Edit = QLineEdit() self.Latex3Edit = QLineEdit() self.Latex1Edit.setEnabled(False) self.Latex2Edit.setEnabled(False) self.Latex3Edit.setEnabled(False) # # show the convert latex result # self.reviewImgLable = QLabel() # self.reviewImgLable.setStyleSheet("border: 2px solid red") grid = QGridLayout() grid.setSpacing(20) # 排版 grid.addWidget(self.imgLable, 1, 0, 5, 3) grid.addWidget(self.img2latexBtn,6,0,1,2) grid.addWidget(self.Latex1Edit, 7, 0) grid.addWidget(self.Latex1copyBtn, 7, 1) # grid.addWidget(self.Latex1EditBtn, 7, 2) grid.addWidget(self.Latex2copyBtn, 8, 1) grid.addWidget(self.Latex2Edit, 8, 0) # grid.addWidget(self.Latex2EditBtn, 8, 2) grid.addWidget(self.Latex3copyBtn, 9, 1) grid.addWidget(self.Latex3Edit, 9, 0) # grid.addWidget(self.Latex3EditBtn, 9, 2) # grid.addWidget(self.reviewImgLable, 10, 0, 4, 3) self.setLayout(grid) # sign and slot # img to latex convert self.img2latexBtn.clicked.connect(self.convert) # copy latex self.Latex1copyBtn.clicked.connect(self.copyLatex1) self.Latex2copyBtn.clicked.connect(self.copyLatex2) self.Latex3copyBtn.clicked.connect(self.copyLatex3) # edit latex # self.Latex1EditBtn.clicked.connect(self.Latex1EditImg) # self.Latex1Edit.textChanged.connect(self.Latex1EditImg) # self.Latex2EditBtn.clicked.connect(self.Latex2EditImg) # self.Latex2Edit.textChanged.connect(self.Latex2EditImg) # self.Latex3EditBtn.clicked.connect(self.Latex3EditImg) # self.Latex3Edit.textChanged.connect(self.Latex3EditImg) # beautify the window self.Beautify() self.show() def Beautify(self): self.setWindowOpacity(0.9) # 设置窗口透明度 # self.setAttribute(qtpy.QtCore.Qt.WA_TranslucentBackground) # 设置窗口背景透明 # self.setWindowFlag(qtpy.QtCore.Qt.FramelessWindowHint) # 隐藏边框 pe = PyQt5.QtGui.QPalette() self.setAutoFillBackground(True) # pe.setColor(PyQt5.QtGui.QPalette.Window, Qt.Black) #设置背景色 pe.setColor(PyQt5.QtGui.QPalette.Background, Qt.black) self.setPalette(pe) self.imgLable.setStyleSheet( ''' QLabel{ border: 2px solid red; border-radius:15px; padding:2px 4px; background-color:#aaa; }''') self.Latex1Edit.setStyleSheet( '''QLineEdit{ border:1px solid gray; border-radius:10px; padding:2px 4px; background-color:#ddd; height:35px; font-color:black; font-weight:1000; font-size:24px }''') self.Latex2Edit.setStyleSheet( '''QLineEdit{ border:1px solid gray; border-radius:10px; padding:2px 4px; background-color:#ddd; height:35px; font-color:black; font-weight:1000; font-size:24px }''') self.Latex3Edit.setStyleSheet( '''QLineEdit{ border:1px solid gray; border-radius:10px; padding:2px 4px; background-color:#ddd; height:35px; font-color:black; font-weight:1000; font-size:24px }''') self.Latex1copyBtn.setStyleSheet( '''QPushButton{ border:1px solid gray; border-radius:4px; padding:5px 5px; height:35px }''') self.Latex2copyBtn.setStyleSheet( '''QPushButton{ border:1px solid gray; border-radius:4px; padding:5px 5px; height:35px }''') self.Latex3copyBtn.setStyleSheet( '''QPushButton{ border:1px solid gray; border-radius:4px; padding:5px 5px; height:35px }''') self.img2latexBtn.setStyleSheet( '''QPushButton{ border:2px solid gray; border-radius:10px; padding:5px 5px; background-color:#555; font-size:24px; font-color:#fff; font-weight:700; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }''') # # Return the base64 encoding of an image with the given filename. # def image_uri(self,filename): image_data = open(filename, "rb").read() return "data:image/jpg;base64," base64.b64encode(image_data).decode() # Call the Mathpix service with the given arguments, headers, and timeout. def latex(self,args, headers=default_headers, timeout=30): r = requests.post(service, data=json.dumps(args), headers=headers, timeout=timeout) return json.loads(r.text) def convert(self): self.grapclipboard() r = self.latex({ 'src':self.image_uri(r".\img\equa.png"), 'formats': ['latex_simplified'] }) # print(r['latex_simplified']) latex1 = r['latex_simplified'] # test # latex1='111' latex2 = '$' latex1 '$' latex3 = '$$' latex1 '$$' self.Latex1Edit.setText(latex1) self.Latex2Edit.setText(latex2) self.Latex3Edit.setText(latex3) def copyLatex1(self): # get the latex formula text = self.Latex1Edit.text() # copy it to clipboard pyperclip.copy(text) def copyLatex2(self): text = self.Latex2Edit.text() pyperclip.copy(text) def copyLatex3(self): text = self.Latex3Edit.text() pyperclip.copy(text) # # 识别剪贴板公式 # def grapclipboard(self): im = ImageGrab.grabclipboard() im.save(r'.\img\equa.png', 'PNG') self.imgLable.setPixmap(PyQt5.QtGui.QPixmap(r'.\img\equa.png')) # # 为程序添加快捷键 # # 可以自己定义 def keyPressEvent(self, event): if (event.key() == Qt.Key_T)and(event.modifiers() == Qt.AltModifier): self.convert() if (event.key() == Qt.Key_C)and(event.modifiers() == Qt.AltModifier): self.copyLatex3()if __name__ == '__main__': app = QApplication(sys.argv) ex = Img2Latex() sys.exit(app.exec_())篇幅有限latex2img部分我已经去掉了
有兴趣的小伙伴可以在我的github上获得完整版资源
地址
https://github.com/Joshua-li-yi/img2latex
所有的接口调用记录可以在这个地址获取
https://dashboard.mathpix.com/user-data
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谢谢老铁们的支持~~
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