基于PyQt5实现图转文功能(示例代码)
作者：疯狂的豆包
PyQt提供了一个设计良好的窗口控件集合，具有更方便的操作性。学过VB的同学会知道，相比与VB的使用，在界面设计上元素更丰富，这篇文章主要介绍了基于PyQt5完成的图转文功能,需要的朋友可以参考下
PyQt是Qt框架的Python语言实现，是最强大的GUI库之一。PyQt提供了一个设计良好的窗口控件集合，具有更方便的操作性。学过VB的同学会知道，相比与VB的使用，在界面设计上元素更丰富。
本文就是基于PyQt5完成的图转文功能，先看界面：
一、界面PicZ.ui可参考之前的文章如何实现，程序代码如下：
from PyQt5 import QtCore, QtGui, QtWidgets
import base64
import os
from return_png import img as retu # 引入img变量，赋别名为pdf_cf
class Ui_PicZ(object):
def setupUi(self, PicZ):
tmp = open('return.png', 'wb') # 创建临时的文件
tmp.write(base64.b64decode(retu)) # 把这个one图片解码出来，写入文件中去。
tmp.close()
PicZ.setObjectName("PicZ")
PicZ.resize(1400, 814)
PicZ.setMinimumSize(QtCore.QSize(1400, 814))
PicZ.setMaximumSize(QtCore.QSize(1400, 814))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush)
PicZ.setPalette(palette)
self.Reback = QtWidgets.QToolButton(PicZ)
self.Reback.setGeometry(QtCore.QRect(10, 10, 51, 41))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ToolTipBase, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ToolTipBase, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ToolTipBase, brush)
self.Reback.setPalette(palette)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("return.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
self.Reback.setIcon(icon)
self.Reback.setIconSize(QtCore.QSize(100, 100))
self.Reback.setAutoRaise(True)
self.Reback.setObjectName("Reback")
self.label = QtWidgets.QLabel(PicZ)
self.label.setGeometry(QtCore.QRect(88, 8, 141, 41))
font = QtGui.QFont()
font.setFamily("微软雅黑")
font.setPointSize(16)
font.setBold(True)
font.setWeight(75)
self.label.setFont(font)
self.label.setObjectName("label")
self.frame = QtWidgets.QFrame(PicZ)
self.frame.setGeometry(QtCore.QRect(20, 60, 1351, 161))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush)
self.frame.setPalette(palette)
self.frame.setAutoFillBackground(True)
self.frame.setFrameShape(QtWidgets.QFrame.Box)
self.frame.setFrameShadow(QtWidgets.QFrame.Plain)
self.frame.setLineWidth(1)
self.frame.setMidLineWidth(0)
self.frame.setObjectName("frame")
self.scwd = QtWidgets.QPushButton(self.frame)
self.scwd.setGeometry(QtCore.QRect(570, 30, 191, 61))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(0, 217, 159))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ButtonText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.PlaceholderText, brush)
brush = QtGui.QBrush(QtGui.QColor(0, 217, 159))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ButtonText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.PlaceholderText, brush)
brush = QtGui.QBrush(QtGui.QColor(0, 217, 159))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(120, 120, 120))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(120, 120, 120))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ButtonText, brush)
brush = QtGui.QBrush(QtGui.QColor(0, 0, 0, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.PlaceholderText, brush)
self.scwd.setPalette(palette)
font = QtGui.QFont()
font.setFamily("微软雅黑")
font.setPointSize(16)
font.setBold(True)
font.setWeight(75)
self.scwd.setFont(font)
self.scwd.setAutoFillBackground(True)
self.scwd.setAutoDefault(False)
self.scwd.setDefault(False)
self.scwd.setFlat(True)
self.scwd.setObjectName("scwd")
self.label_2 = QtWidgets.QLabel(self.frame)
self.label_2.setGeometry(QtCore.QRect(490, 110, 371, 21))
font = QtGui.QFont()
font.setFamily("微软雅黑")
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.frame_2 = QtWidgets.QFrame(PicZ)
self.frame_2.setGeometry(QtCore.QRect(1050, 280, 321, 301))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(245, 255, 250))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush)
self.frame_2.setPalette(palette)
self.frame_2.setAutoFillBackground(True)
self.frame_2.setFrameShape(QtWidgets.QFrame.NoFrame)
self.frame_2.setFrameShadow(QtWidgets.QFrame.Plain)
self.frame_2.setLineWidth(1)
self.frame_2.setMidLineWidth(0)
self.frame_2.setObjectName("frame_2")
self.label_3 = QtWidgets.QLabel(self.frame_2)
self.label_3.setGeometry(QtCore.QRect(20, 20, 191, 31))
font = QtGui.QFont()
font.setFamily("微软雅黑")
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.label_3.setFont(font)
self.label_3.setObjectName("label_3")
self.xzwd = QtWidgets.QPushButton(self.frame_2)
self.xzwd.setGeometry(QtCore.QRect(30, 100, 271, 61))
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(0, 217, 159))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ButtonText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.PlaceholderText, brush)
brush = QtGui.QBrush(QtGui.QColor(0, 217, 159))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ButtonText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.PlaceholderText, brush)
brush = QtGui.QBrush(QtGui.QColor(0, 217, 159))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush)
brush = QtGui.QBrush(QtGui.QColor(120, 120, 120))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush)
brush = QtGui.QBrush(QtGui.QColor(120, 120, 120))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ButtonText, brush)
brush = QtGui.QBrush(QtGui.QColor(0, 0, 0, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.PlaceholderText, brush)
self.xzwd.setPalette(palette)
font = QtGui.QFont()
font.setFamily("微软雅黑")
font.setPointSize(14)
font.setBold(True)
font.setWeight(75)
self.xzwd.setFont(font)
self.xzwd.setAutoFillBackground(True)
self.xzwd.setAutoDefault(False)
self.xzwd.setDefault(False)
self.xzwd.setFlat(True)
self.xzwd.setObjectName("xzwd")
self.label_4 = QtWidgets.QLabel(PicZ)
self.label_4.setGeometry(QtCore.QRect(20, 280, 500, 500))
self.label_4.setFrameShape(QtWidgets.QFrame.Box)
self.label_4.setText("")
self.label_4.setObjectName("label_4")
self.label_5 = QtWidgets.QLabel(PicZ)
self.label_5.setGeometry(QtCore.QRect(530, 280, 500, 500))
self.label_5.setFrameShape(QtWidgets.QFrame.Box)
self.label_5.setText("")
self.label_5.setObjectName("label_5")
self.label_7 = QtWidgets.QLabel(PicZ)
self.label_7.setGeometry(QtCore.QRect(210, 250, 71, 21))
font = QtGui.QFont()
font.setFamily("微软雅黑")
self.label_7.setFont(font)
self.label_7.setObjectName("label_7")
self.label_8 = QtWidgets.QLabel(PicZ)
self.label_8.setGeometry(QtCore.QRect(730, 250, 71, 21))
font = QtGui.QFont()
font.setFamily("微软雅黑")
self.label_8.setFont(font)
self.label_8.setObjectName("label_8")
self.retranslateUi(PicZ)
QtCore.QMetaObject.connectSlotsByName(PicZ)
os.remove("return.png")
def retranslateUi(self, PicZ):
_translate = QtCore.QCoreApplication.translate
PicZ.setWindowTitle(_translate("PicZ", "图片转文字"))
self.Reback.setText(_translate("PicZ", "..."))
self.label.setText(_translate("PicZ", "图转文"))
self.scwd.setText(_translate("PicZ", "+ 上传图片"))
self.label_2.setText(_translate("PicZ", "<html><head/><body><p>上传图片至此 支持格式：jpg, png，bmp，gif，tiff等</p></body></html>"))
self.label_3.setText(_translate("PicZ", "操作"))
self.xzwd.setText(_translate("PicZ", "下载Word文档"))
self.label_7.setText(_translate("PicZ", "图片显示"))
self.label_8.setText(_translate("PicZ", "识别结果"))二、main.py实现主要功能程序如下：
class textwindow(QtWidgets.QWidget,Ui_PicZ):
def __init__(self):
super(textwindow,self).__init__()
self.setupUi(self)
def re_back(self):
self.close()
def sctp(self):
fileName, fileType = QtWidgets.QFileDialog.getOpenFileName(self, "选取文件", os.getcwd(),"自定义(*.jpg;*.png;*.jpeg;*);;All Files(*)")
image = QPixmap(fileName)
f = str(fileName)
self.p, self.s = f.split(".")
resImg1 = image.scaled(QSize(500, 500))
self.label_4.setPixmap(resImg1)
self.label_4.setScaledContents(True)
self.text = pytesseract.image_to_string(f, lang="chi_sim+eng", config='--psm 6')
# 打印识别后的文本d
self.label_5.setText(self.text)
def xzwj(self):
document=Document()
document.add_paragraph(self.text)
document.save("{}_图转文.docx".format(self.p))
root = tkinter.Tk()
root.withdraw()
tkinter.messagebox.showinfo("提示", "成功下载到源文件所在文件夹")说明如下：
(1) def sctp(self): 其中的sctp为按钮的objectName属性名字；def xzwj(self):其中的xzwj为按钮的objectName属性名字；
(2) 可通过点击按钮实现本地文件上传；
fileName, fileType = QtWidgets. QFileDialog.getOpenFileName(self, "选取文件", os.getcwd(), "自定义(*.jpg;*.png;*.jpeg;*);;All Files(*)")
(3) 利用label组件显示图片，同时自适应图片；
(4) 关键点为借助pytesseract模块实现离线模式图转文，在安装过程中务必安装语言包，否则功能不会实现，具体如何安装，大家可自行搜索；
(5) 最关键可实现图转文结果页会在label组件中显示。
三、最后在主程序中加入以上子程序。
if __name__ =="__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
win = mywindow()
pt = textwindow()
win.show()
win.Pic_SB.clicked.connect(win.pic_main)
win.Pic_SB.clicked.connect(pt.show)
pt.Reback.clicked.connect(pt.re_back)
pt.Reback.clicked.connect(win.show)
pt.scwd.clicked.connect(pt.sctp)
pt.xzwd.clicked.connect(pt.xzwj)
sys.exit(app.exec_())四、总结
本文介绍的图转文功能还有一些待完善地方就是pytesseract该模块，不会很清晰的显示所有文字，不是对所有照片都好用，有时还会死机。当然我们可以在后续阶段逐渐完善。
到此这篇关于基于PyQt5实现图转文功能(示例代码)的文章就介绍到这了,更多相关PyQt5图转文内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！