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This article mainly introduces Python PyQt5 how to achieve efficient matting to the background, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Brief introduction

Combined with the learning PyQt5, make some small projects and make a record.

This project uses the API of removebg to realize the matting function and deduct the background of the character. Encapsulate the secondary function on the desktop.

1. Get API

Open removebg's website first.

Click the tool and API above

Click API Docs again

Finally, click Get API Key, of course, log in first.

How to use 2.API

There are ways to use it under API Docs

3. Visual desktop production def ui_init (self): self.setWindowTitle ('matting') # set window title self.resize (610500) # set window size self.button = QPushButton ('select picture') 'two Qlable''' self.before_lable = QLabel () self.before_lable.setToolTip ( 'original picture') # setting prompt message self.before_lable.resize (300400) self.before_lable.setScaledContents (True) # setting picture adaptive window size self.before_lable.setFrameShape (QFrame.Panel | QFrame.Plain) self.after_lable = QLabel () self.after_lable.setToolTip ('processed picture') # setting prompt message Self.after_lable.resize (300400) self.after_lable.setScaledContents (True) # set picture adaptive window size self.after_lable.setFrameShape (QFrame.Panel | QFrame.Plain)''one line' 'self.frame = QFrame () self.frame.setFrameShape (QFrame.VLine | QFrame.Plain) '' window layout''self.h_layout = QHBoxLayout () self.v_layout = QVBoxLayout () self.h_layout.addWidget (self.before_lable) self.h_layout.addWidget (self.frame) self.h_layout.addWidget (self.after_lable) self.v_layout.addWidget (self.button) self.v_ Layout.addLayout (self.h_layout) self.widget = QWidget () self.setCentralWidget (self.widget) self.widget.setLayout (self.v_layout)

Use the setToolTip method to set the prompt

Self.before_lable.setToolTip ('original picture') # set the prompt message

Use the setScaledContents method to set the picture adaptation on before_lable

Self.before_lable.setScaledContents (True)

Use the setFrameShape method to set the shape of QLable, because QFrame is the base class of QLable, so you can use the QFrame method

Self.before_lable.setFrameShape (QFrame.Panel | QFrame.Plain)

Style combination table

The window layout is made up of:

Two QLable and one QFrame horizontal layout

Vertical layout in containers with Qpushbutton and horizontal layout

4. Logic implementation def file (self): fname,a = QFileDialog.getOpenFileName (self,' opens the file','.' 'Image file (* .jpg * .png)') # is used to select the file if fname: self.before_lable.setPixmap (QPixmap (fname)) # to display the original picture on the before_lable control''API call' 'response = requests.post (' https://api.remove.bg/v1.0/removebg', Files= {'image_file': open (fname,' rb')}, data= {'size':' auto'}, headers= {'Xmuri API Key':' your own API Key'},) if response.status_code = = requests.codes.ok: with open ('no-bg.png' 'wb') as f: f.write (response.content) try: self.after_lable.setPixmap (QPixmap ('. / no-bg.png')) except FileNotFoundError: pass

With QFileDialog.getOpenFileName, select the local file. This method returns two values, the first of which is what we need.

Fname,a = QFileDialog.getOpenFileName (self,' opens the file','.', 'image file (* .jpg * .png)') # to select file 5. Beautification

Only the buttons are beautified.

Def qss_init (self): qss =''QPushButton {border-radius: 6px; border: none; height: 25px; color: white; background: rgb (57,58,60);} QPushButton:enabled:hover {background: rgb (230,39,39) } QPushButton:enabled:pressed {background: rgb (255,0,0);}''self.setStyleSheet (qss) # load style 6. Signal and slot binding def connect_init (self): self.button.clicked.connect (self.file) 7. All codes import sys from PyQt5.QtWidgets import QApplication, QPushButton, QStatusBar, QWidget, QFileDialog, QLabel, QHBoxLayout, QVBoxLayout, QFrame, QMainWindowfrom PyQt5.QtGui import QPixmapimport requestsclass removebg (QMainWindow): def _ _ init__ (self): super (removebg) Self). _ init__ () self.ui_init () self.qss_init () self.connect_init () def ui_init (self): self.setWindowTitle ('matting') self.resize (610500) self.button = QPushButton ('Select picture') self.before_lable = QLabel () self.before_lable.setToolTip ('original Incoming picture') self.before_lable.resize (300400) self.before_lable.setScaledContents (True) # set the adaptive window size of the picture self.before_lable.setFrameShape (QFrame.Panel | QFrame.Plain) self.after_lable = QLabel () self.after_lable.setToolTip ('processed picture') self.after_lable.resize (300400) Self.after_lable.setScaledContents (True) # set picture adaptive window size self.after_lable.setFrameShape (QFrame.Panel | QFrame.Plain) self.frame = QFrame () self.frame.setFrameShape (QFrame.VLine | QFrame.Plain) self.h_layout = QHBoxLayout () self.v_layout = QVBoxLayout () self.h_layout.addWidget (self.before_lable) Self.h_layout.addWidget (self.frame) self.h_layout.addWidget (self.after_lable) self.v_layout.addWidget (self.button) self.v_layout.addLayout (self.h_layout) self.widget = QWidget () self.setCentralWidget (self.widget) self.widget.setLayout (self.v_layout) def file (self): fname A = QFileDialog.getOpenFileName (self,' opens the file','.', 'image file (* .jpg * .png)') if fname: self.before_lable.setPixmap (QPixmap (fname)) response = requests.post ('https://api.remove.bg/v1.0/removebg', files= {' image_file': open (fname, 'rb')} Data= {'size':' auto'}, headers= {'Xmurapi Keyweights:' 7Uuo8dTHwSXUdjhKZP7h9c'},) if response.status_code = = requests.codes.ok: with open ('no-bg.png' 'wb') as f: f.write (response.content) try: self.after_lable.setPixmap (QPixmap ('. / no-bg.png')) except FileNotFoundError: pass def connect_init (self): self.button.clicked.connect (self.file) Def qss_init (self): qss = 'QPushButton {border-radius: 6px Border: none; height: 25px; color: white; background: rgb (57, 58, 60);} QPushButton:enabled:hover {background: rgb (230,39,39);} QPushButton:enabled:pressed {background: rgb (255,0,0) }''self.setStyleSheet (qss) if _ name__ = =' _ main__': app = QApplication (sys.argv) dispaly = removebg () dispaly.show () sys.exit (app.exec_ ()) 8. Interface display

You can also add program icons

Thank you for reading this article carefully. I hope the article "how to achieve efficient Python PyQt5 matting and background removal" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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