[Résolu] Intégration flux webcam pour prise de vue

Bonjour,

Je galère sur un nouveau projet où je souhaite intégrer une fonction dans laquelle j'allume la webcam du PC et je doit pouvoir prendre des photos.

Ci-dessous le code de mon application, pour démarrer vous devez d'abord vous créer un répertoire nommé "Affaires" sur votre PC. Ensuite, créez une affaire via l'IHM (peu importe le nombre de paramètres). Pour cela vous devez remplir le champ sous "Nouvelle affaire" et les champs en face des "Nom Paramètre" puis cliquez sur "Créer". Le bouton "Photo" doit apparaître.

Lorsqu'on clique dessus, ça ouvre une deuxième fenêtre contenant le flux vidéo de la caméra (normal puisqu'il y a l'instruction

Code:

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cv2.imshow('my webcam', img)

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.

Code:

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#!/usr/bin/python # -*- coding: utf-8 -*-   from PyQt4 import QtGui, QtCore from PyQt4.QtGui import QFileDialog from PyQt4.QtGui import QImage import time import os.path import os from os import walk import shutil import win32com.client as win32 from openpyxl import Workbook import cv2 import sys   #appel librairie import IHM_Tablette   path_work_dir = "chemin vers votre répertoire"   # initialisation   def liste_affaires(a) :   listerep = []   listerep=os.listdir(a)   return listerep   def fichier_ini (a) :   if os.path.isdir(path_work_dir) == False : os.mkdir(path_work_dir)   path_work_dir_affaire = path_work_dir +"\\" + a["affaire"]   if os.path.isdir(path_work_dir_affaire) == False : os.mkdir(path_work_dir_affaire)   path_work_dir_photo = path_work_dir +"\\" + a["affaire"] +"\\Photos"   if os.path.isdir(path_work_dir_photo) == False : os.mkdir(path_work_dir_photo)   path_logfile_affaire = path_work_dir +str("\\") +a["affaire"] +str("\\log_file.txt") ini_file = open(path_logfile_affaire,'a')   for m in range (1,len(a)): ini_file.write( str(a[m]) + "\n")   ini_file.close()   def lecture_log_file (a) :   file_txt = open(a, "r") data_txt = file_txt.readlines() file_txt.close() data_affaire = {} for h in range (len (data_txt)) : data_affaire[h + 1] = data_txt[h].strip()   return data_affaire   class ImageViewer(QtGui.QMainWindow, IHM_Tablette.Ui_MainWindow):     def __init__(self, parent=None): super(ImageViewer, self).__init__(parent) self.setupUi(self) self.connectActions() self.spinBox.setValue(5) self.spinBox.setRange(1,10)   def main(self): self.show() liste = liste_affaires (path_work_dir) self.affairebox.addItems(liste) self.affairebox.addItem("Nouvelle affaire") rank = self.affairebox.findText("Nouvelle affaire") self.affairebox.setCurrentIndex(rank) self.pushButton.hide() self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.widget.hide()   def gestion_affaire(self) : if self.affairebox.currentText() == "Nouvelle affaire" : self.effacer() self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.pushButton_2.show() self.pushButton_3.show() self.pushButton.hide() for l in range(1,self.spinBox.value()+1) : eval("self.champ_" + str(l)+".show()") eval("self.label_" + str(l)+".show()")   else : path_logfile_affaire = path_work_dir + "\\" + str(self.affairebox.currentText()) + "\\log_file.txt" data_affaire = lecture_log_file(path_logfile_affaire)   for d in range (len(data_affaire.keys()) +1,11): eval("self.champ_" + str(d)+".hide()") eval("self.label_" + str(d)+".hide()")   for e in range (1,len(data_affaire.keys())+1): eval("self.champ_" + str(e)+".show()") eval("self.label_" + str(e)+".show()")   for key in data_affaire : eval("self.label_" + str(key) +".setText(\""+ data_affaire[key] +"\")") self.champ_11.hide() self.label_11.hide() self.spinBox.hide() self.pushButton_5.show() self.pushButton_6.show() self.pushButton_7.show() self.pushButton_2.hide() self.pushButton_3.hide() self.pushButton.show()     def IHM(self):   for l in range(1,self.spinBox.value()+1) : eval("self.champ_" + str(l)+".show()") eval("self.label_" + str(l)+".show()")   for k in range (self.spinBox.value()+1,11): eval("self.champ_" + str(k)+".hide()") eval("self.label_" + str(k)+".hide()")   def effacer(self):   for j in range (1,12) : efface = "self.champ_" + str(j) +".clear()" eval(efface)   self.spinBox.show() self.spinBox.setValue(5) self.textBrowser.clear() rank = self.affairebox.findText("Nouvelle affaire") self.affairebox.setCurrentIndex(rank) self.champ_11.show() self.label_11.show() self.label_1.setText("Nom Param\xe8tre 1") self.label_2.setText("Nom Param\xe8tre 2") self.label_3.setText("Nom Param\xe8tre 3") self.label_4.setText("Nom Param\xe8tre 4") self.label_6.setText("Nom Param\xe8tre 6") self.label_5.setText("Nom Param\xe8tre 5") self.label_7.setText("Nom Param\xe8tre 7") self.label_8.setText("Nom Param\xe8tre 8") self.label_9.setText("Nom Param\xe8tre 9") self.label_10.setText("Nom Param\xe8tre 10") self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.pushButton.show()   def effacer_2 (self) : for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : eval("self.champ_" + str(f)+".clear()")   def cliquer(self): data ={} if self.champ_11.text() == "" : self.textBrowser.append("Veuiller saisir un num\xe9ro d'affaire") else : data["affaire"] = self.champ_11.text() for i in range (1,10) : if eval("self.champ_" + str(i) +".isVisible() ") == True : if eval("self.champ_" + str(i) +".text()") != "" : data[i] = eval("self.champ_" + str(i) +".text()")   else : self.textBrowser.append("Compl\xe9ter le nom du param\xe8tre " + str(i))   fichier_ini(data) self.textBrowser.append("Affaire cr\xe9\xe9e") self.affairebox.addItem(str(data["affaire"])) rank = self.affairebox.findText(str(data["affaire"])) self.affairebox.setCurrentIndex(rank) self.champ_11.hide() self.label_11.hide() self.spinBox.hide() self.pushButton_5.show() self.pushButton_6.show() self.pushButton_7.show() self.pushButton_2.hide() self.pushButton_3.hide() self.pushButton.show()   for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : eval("self.label_"+str(f)+".setText(data[" + str(f)+ "])") eval("self.champ_" + str(f)+".clear()")   def supprimer(self) :   path_xls_file = path_work_dir + "\\" + self.affairebox.currentText() + "\\" + self.affairebox.currentText()+".xlsx" path_affaire_dir = path_work_dir + "\\" + self.affairebox.currentText() path_rep_photo = path_work_dir + "\\" + self.affairebox.currentText() + "\\Photos"   photos_files = os.listdir(path_rep_photo)   if os.path.isfile(path_xls_file) == False and photos_files == []: shutil.rmtree(path_affaire_dir) self.affairebox.removeItem(self.affairebox.currentIndex()) rank = self.affairebox.findText("Nouvelle affaire") self.affairebox.setCurrentIndex(rank) self.spinBox.show() self.spinBox.setValue(5) self.textBrowser.clear() self.champ_11.show() self.champ_11.clear() self.label_11.show() self.label_1.setText("Nom Param\xe8tre 1") self.label_2.setText("Nom Param\xe8tre 2") self.label_3.setText("Nom Param\xe8tre 3") self.label_4.setText("Nom Param\xe8tre 4") self.label_6.setText("Nom Param\xe8tre 6") self.label_5.setText("Nom Param\xe8tre 5") self.label_7.setText("Nom Param\xe8tre 7") self.label_8.setText("Nom Param\xe8tre 8") self.label_9.setText("Nom Param\xe8tre 9") self.label_10.setText("Nom Param\xe8tre 10") self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.pushButton.hide() self.pushButton_2.show() self.pushButton_3.show()   for l in range(1,self.spinBox.value()+1) : eval("self.champ_" + str(l)+".show()") eval("self.label_" + str(l)+".show()")   for k in range (self.spinBox.value()+1,11): eval("self.champ_" + str(k)+".hide()") eval("self.label_" + str(k)+".hide()")   else : self.textBrowser.append("Impossible de supprimer cette affaire")   def remplissage_xls(self) :   path_xls_file = path_work_dir + "\\" + self.affairebox.currentText() + "\\" + self.affairebox.currentText()+".xlsx"   if os.path.isfile(path_xls_file) == False : wb = Workbook() ws1 = wb.active   for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : ws1.cell(row=1, column =f, value =eval("self.label_" + str(f) +".text() ")) wb.save(path_xls_file)   excel = win32.gencache.EnsureDispatch('Excel.Application') wb = excel.Workbooks.Open(path_xls_file) ws = wb.Worksheets("Sheet") derniere_ligne = ws.UsedRange.Rows.Count + 1   for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : ws.Cells(derniere_ligne,f).Value= eval("self.champ_" + str(f)+".text()") eval("self.champ_" + str(f) +".clear()")   excel.Application.DisplayAlerts=False wb.SaveAs(path_xls_file) excel.Application.Quit()   def show_webcam(self): cam = cv2.VideoCapture(0) mirror=False while True: ret_val, img = cam.read() if mirror: img = cv2.flip(img, 1) cv2.imshow('my webcam', img)   if cv2.waitKey(1) == 27: break # esc to quit cv2.destroyAllWindows()   def Ouverture_photo(self):   self.widget.show() self.widget_2.show() self.show_webcam() #self.label.setPixmap(QtGui.QPixmap(logo))     def connectActions(self): self.pushButton_4.clicked.connect(self.close) self.spinBox.valueChanged.connect(self.IHM) self.pushButton_3.clicked.connect(self.effacer) self.pushButton_2.clicked.connect(self.cliquer) self.affairebox.activated.connect(self.gestion_affaire) self.pushButton_7.clicked.connect(self.effacer_2) self.pushButton.clicked.connect(self.supprimer) self.pushButton_6.clicked.connect(self.remplissage_xls) self.pushButton_5.clicked.connect(self.Ouverture_photo) self.pushButton_9.clicked.connect(self.widget.close)   if __name__=='__main__': app = QtGui.QApplication(sys.argv) imageViewer = ImageViewer() imageViewer.main() app.exec_()

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Ce que j'aimerais comme résultat c'est quelque chose dans ce style là (code récupérer sur le net ci-dessous). J'aimerais que le flux vidéo soit intégrer dans le widget_2.

Code:

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from PyQt4 import QtCore, QtGui, uic import sys import cv2 import numpy as np import threading import time import Queue     running = False capture_thread = None form_class = uic.loadUiType("simple.ui")[0] q = Queue.Queue()     def grab(cam, queue, width, height, fps): global running capture = cv2.VideoCapture(cam) capture.set(cv2.CAP_PROP_FRAME_WIDTH, width) capture.set(cv2.CAP_PROP_FRAME_HEIGHT, height) capture.set(cv2.CAP_PROP_FPS, fps)   while(running): frame = {} capture.grab() retval, img = capture.retrieve(0) frame["img"] = img   if queue.qsize() < 10: queue.put(frame) else: print queue.qsize()   class OwnImageWidget(QtGui.QWidget): def __init__(self, parent=None): super(OwnImageWidget, self).__init__(parent) self.image = None   def setImage(self, image): self.image = image sz = image.size() self.setMinimumSize(sz) self.update()   def paintEvent(self, event): qp = QtGui.QPainter() qp.begin(self) if self.image: qp.drawImage(QtCore.QPoint(0, 0), self.image) qp.end()       class MyWindowClass(QtGui.QMainWindow, form_class): def __init__(self, parent=None): QtGui.QMainWindow.__init__(self, parent) self.setupUi(self)   self.startButton.clicked.connect(self.start_clicked)   self.window_width = self.ImgWidget.frameSize().width() self.window_height = self.ImgWidget.frameSize().height() self.ImgWidget = OwnImageWidget(self.ImgWidget)   self.timer = QtCore.QTimer(self) self.timer.timeout.connect(self.update_frame) self.timer.start(1)     def start_clicked(self): global running running = True capture_thread.start() self.startButton.setEnabled(False) self.startButton.setText('Starting...')     def update_frame(self): if not q.empty(): self.startButton.setText('Camera is live') frame = q.get() img = frame["img"]   img_height, img_width, img_colors = img.shape scale_w = float(self.window_width) / float(img_width) scale_h = float(self.window_height) / float(img_height) scale = min([scale_w, scale_h])   if scale == 0: scale = 1   img = cv2.resize(img, None, fx=scale, fy=scale, interpolation = cv2.INTER_CUBIC) img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) height, width, bpc = img.shape bpl = bpc * width image = QtGui.QImage(img.data, width, height, bpl, QtGui.QImage.Format_RGB888) self.ImgWidget.setImage(image)   def closeEvent(self, event): global running running = False       capture_thread = threading.Thread(target=grab, args = (0, q, 1920, 1080, 30))   app = QtGui.QApplication(sys.argv) w = MyWindowClass(None) w.setWindowTitle('Kurokesu PyQT OpenCV USB camera test panel') w.show() app.exec_()

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Je tourne un peu en rond, le code que j'ai trouvé sur le net me semble un peu "sur-dimensionné" par rapport à mon besoin. En plus, ça commence à dépasser mes compétences/connaissances en programmation.

Voila si vous avez des idées je suis preneur, merci d'avance pour votre aide.

Bonjour,

Je progresse, j'ai réussi à incorporer le deuxième code dans le premier (de manière propre évidemment). Mais le problème c'est que le flux vidéo ne s'affiche pas à l'écran sans renvoyer le flux vidéo. J'ai pas encore réussi à identifier là où était le problème.

Code:

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#!/usr/bin/python # -*- coding: utf-8 -*-   from PyQt4 import QtGui, QtCore from PyQt4.QtGui import QFileDialog from PyQt4.QtGui import QImage import time import os.path import os from os import walk import shutil import win32com.client as win32 from openpyxl import Workbook import cv2 import sys import numpy as np import threading import time import Queue #appel librairie import IHM_Tablette   path_work_dir = "lien de votre répertoire affaire" running = False capture_thread = None q = Queue.Queue()   # initialisation   def liste_affaires(a) :   listerep = []   listerep=os.listdir(a)   return listerep   def fichier_ini (a) :   if os.path.isdir(path_work_dir) == False : os.mkdir(path_work_dir)   path_work_dir_affaire = path_work_dir +"\\" + a["affaire"]   if os.path.isdir(path_work_dir_affaire) == False : os.mkdir(path_work_dir_affaire)   path_work_dir_photo = path_work_dir +"\\" + a["affaire"] +"\\Photos"   if os.path.isdir(path_work_dir_photo) == False : os.mkdir(path_work_dir_photo)   path_logfile_affaire = path_work_dir +str("\\") +a["affaire"] +str("\\log_file.txt") ini_file = open(path_logfile_affaire,'a')   for m in range (1,len(a)): ini_file.write( str(a[m]) + "\n")   ini_file.close()   def lecture_log_file (a) :   file_txt = open(a, "r") data_txt = file_txt.readlines() file_txt.close() data_affaire = {} for h in range (len (data_txt)) : data_affaire[h + 1] = data_txt[h].strip()   return data_affaire   def grab(cam, queue, width, height, fps): global running capture = cv2.VideoCapture(cam) capture.set(cv2.CAP_PROP_FRAME_WIDTH, width) capture.set(cv2.CAP_PROP_FRAME_HEIGHT, height) capture.set(cv2.CAP_PROP_FPS, fps)   while(running): frame = {} capture.grab() retval, img = capture.retrieve(0) frame["img"] = img   if queue.qsize() < 10: queue.put(frame) else: print queue.qsize()   class OwnImageWidget(QtGui.QWidget): def __init__(self, parent=None): super(OwnImageWidget, self).__init__(parent) self.image = None   def setImage(self, image): self.image = image sz = image.size() self.setMinimumSize(sz) self.update()   def paintEvent(self, event): qp = QtGui.QPainter() qp.begin(self) if self.image: qp.drawImage(QtCore.QPoint(0, 0), self.image) qp.end()   class ImageViewer(QtGui.QMainWindow, IHM_Tablette.Ui_MainWindow):     def __init__(self, parent=None): super(ImageViewer, self).__init__(parent) self.setupUi(self) self.connectActions() self.spinBox.setValue(5) self.spinBox.setRange(1,10)   def main(self): self.show() liste = liste_affaires (path_work_dir) self.affairebox.addItems(liste) self.affairebox.addItem("Nouvelle affaire") rank = self.affairebox.findText("Nouvelle affaire") self.affairebox.setCurrentIndex(rank) self.pushButton.hide() self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.widget.hide()   def gestion_affaire(self) : if self.affairebox.currentText() == "Nouvelle affaire" : self.effacer() self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.pushButton_2.show() self.pushButton_3.show() self.pushButton.hide() for l in range(1,self.spinBox.value()+1) : eval("self.champ_" + str(l)+".show()") eval("self.label_" + str(l)+".show()")   else : path_logfile_affaire = path_work_dir + "\\" + str(self.affairebox.currentText()) + "\\log_file.txt" data_affaire = lecture_log_file(path_logfile_affaire)   for d in range (len(data_affaire.keys()) +1,11): eval("self.champ_" + str(d)+".hide()") eval("self.label_" + str(d)+".hide()")   for e in range (1,len(data_affaire.keys())+1): eval("self.champ_" + str(e)+".show()") eval("self.label_" + str(e)+".show()")   for key in data_affaire : eval("self.label_" + str(key) +".setText(\""+ data_affaire[key] +"\")") self.champ_11.hide() self.label_11.hide() self.spinBox.hide() self.pushButton_5.show() self.pushButton_6.show() self.pushButton_7.show() self.pushButton_2.hide() self.pushButton_3.hide() self.pushButton.show()     def IHM(self):   for l in range(1,self.spinBox.value()+1) : eval("self.champ_" + str(l)+".show()") eval("self.label_" + str(l)+".show()")   for k in range (self.spinBox.value()+1,11): eval("self.champ_" + str(k)+".hide()") eval("self.label_" + str(k)+".hide()")   def effacer(self):   for j in range (1,12) : efface = "self.champ_" + str(j) +".clear()" eval(efface)   self.spinBox.show() self.spinBox.setValue(5) self.textBrowser.clear() rank = self.affairebox.findText("Nouvelle affaire") self.affairebox.setCurrentIndex(rank) self.champ_11.show() self.label_11.show() self.label_1.setText("Nom Param\xe8tre 1") self.label_2.setText("Nom Param\xe8tre 2") self.label_3.setText("Nom Param\xe8tre 3") self.label_4.setText("Nom Param\xe8tre 4") self.label_6.setText("Nom Param\xe8tre 6") self.label_5.setText("Nom Param\xe8tre 5") self.label_7.setText("Nom Param\xe8tre 7") self.label_8.setText("Nom Param\xe8tre 8") self.label_9.setText("Nom Param\xe8tre 9") self.label_10.setText("Nom Param\xe8tre 10") self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.pushButton.show()   def effacer_2 (self) : for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : eval("self.champ_" + str(f)+".clear()")   def cliquer(self): data ={} if self.champ_11.text() == "" : self.textBrowser.append("Veuiller saisir un num\xe9ro d'affaire") else : data["affaire"] = self.champ_11.text() for i in range (1,10) : if eval("self.champ_" + str(i) +".isVisible() ") == True : if eval("self.champ_" + str(i) +".text()") != "" : data[i] = eval("self.champ_" + str(i) +".text()")   else : self.textBrowser.append("Compl\xe9ter le nom du param\xe8tre " + str(i))   fichier_ini(data) self.textBrowser.append("Affaire cr\xe9\xe9e") self.affairebox.addItem(str(data["affaire"])) rank = self.affairebox.findText(str(data["affaire"])) self.affairebox.setCurrentIndex(rank) self.champ_11.hide() self.label_11.hide() self.spinBox.hide() self.pushButton_5.show() self.pushButton_6.show() self.pushButton_7.show() self.pushButton_2.hide() self.pushButton_3.hide() self.pushButton.show()   for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : eval("self.label_"+str(f)+".setText(data[" + str(f)+ "])") eval("self.champ_" + str(f)+".clear()")   def supprimer(self) :   path_xls_file = path_work_dir + "\\" + self.affairebox.currentText() + "\\" + self.affairebox.currentText()+".xlsx" path_affaire_dir = path_work_dir + "\\" + self.affairebox.currentText() path_rep_photo = path_work_dir + "\\" + self.affairebox.currentText() + "\\Photos"   photos_files = os.listdir(path_rep_photo)   if os.path.isfile(path_xls_file) == False and photos_files == []: shutil.rmtree(path_affaire_dir) self.affairebox.removeItem(self.affairebox.currentIndex()) rank = self.affairebox.findText("Nouvelle affaire") self.affairebox.setCurrentIndex(rank) self.spinBox.show() self.spinBox.setValue(5) self.textBrowser.clear() self.champ_11.show() self.champ_11.clear() self.label_11.show() self.label_1.setText("Nom Param\xe8tre 1") self.label_2.setText("Nom Param\xe8tre 2") self.label_3.setText("Nom Param\xe8tre 3") self.label_4.setText("Nom Param\xe8tre 4") self.label_6.setText("Nom Param\xe8tre 6") self.label_5.setText("Nom Param\xe8tre 5") self.label_7.setText("Nom Param\xe8tre 7") self.label_8.setText("Nom Param\xe8tre 8") self.label_9.setText("Nom Param\xe8tre 9") self.label_10.setText("Nom Param\xe8tre 10") self.pushButton_5.hide() self.pushButton_6.hide() self.pushButton_7.hide() self.pushButton.hide() self.pushButton_2.show() self.pushButton_3.show()   for l in range(1,self.spinBox.value()+1) : eval("self.champ_" + str(l)+".show()") eval("self.label_" + str(l)+".show()")   for k in range (self.spinBox.value()+1,11): eval("self.champ_" + str(k)+".hide()") eval("self.label_" + str(k)+".hide()")   else : self.textBrowser.append("Impossible de supprimer cette affaire")   def remplissage_xls(self) :   path_xls_file = path_work_dir + "\\" + self.affairebox.currentText() + "\\" + self.affairebox.currentText()+".xlsx"   if os.path.isfile(path_xls_file) == False : wb = Workbook() ws1 = wb.active   for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : ws1.cell(row=1, column =f, value =eval("self.label_" + str(f) +".text() ")) wb.save(path_xls_file)   excel = win32.gencache.EnsureDispatch('Excel.Application') wb = excel.Workbooks.Open(path_xls_file) ws = wb.Worksheets("Sheet") derniere_ligne = ws.UsedRange.Rows.Count + 1   for f in range (1,10) : if eval("self.champ_" + str(f) +".isVisible() ") == True : ws.Cells(derniere_ligne,f).Value= eval("self.champ_" + str(f)+".text()") eval("self.champ_" + str(f) +".clear()")   excel.Application.DisplayAlerts=False wb.SaveAs(path_xls_file) excel.Application.Quit()   def update_frame(self): if not q.empty(): frame = q.get() img = frame["img"]   img_height, img_width, img_colors = img.shape scale_w = float(self.window_width) / float(img_width) scale_h = float(self.window_height) / float(img_height) scale = min([scale_w, scale_h])   if scale == 0: scale = 1   img = cv2.resize(img, None, fx=scale, fy=scale, interpolation = cv2.INTER_CUBIC) img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) height, width, bpc = img.shape bpl = bpc * width image = QtGui.QImage(img.data, width, height, bpl, QtGui.QImage.Format_RGB888) self.widget_2.setImage(image)   def Ouverture_photo(self):   self.widget.show() self.widget_2.show() self.window_width = self.widget_2.frameSize().width() self.window_height = self.widget_2.frameSize().height() self.widget_2 = OwnImageWidget(self.widget_2) global running running = True capture_thread.start() self.timer = QtCore.QTimer(self) self.timer.timeout.connect(self.update_frame) self.timer.start(1)   def fermer(self) : self.widget.hide() self.widget_2.hide() global running running = False   def connectActions(self): self.pushButton_4.clicked.connect(self.close) self.spinBox.valueChanged.connect(self.IHM) self.pushButton_3.clicked.connect(self.effacer) self.pushButton_2.clicked.connect(self.cliquer) self.affairebox.activated.connect(self.gestion_affaire) self.pushButton_7.clicked.connect(self.effacer_2) self.pushButton.clicked.connect(self.supprimer) self.pushButton_6.clicked.connect(self.remplissage_xls) self.pushButton_5.clicked.connect(self.Ouverture_photo) self.pushButton_9.clicked.connect(self.fermer)   if __name__=='__main__': capture_thread = threading.Thread(target=grab, args = (0, q, 1920, 1080, 30)) app = QtGui.QApplication(sys.argv) imageViewer = ImageViewer() imageViewer.main() app.exec_()

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J'ai l'impression que le problème se situe dans la fonction "update frame".

Edit :

En fait, j'affichais mon widget trop tôt. Du coup en déplaçant l'affichage en dessous de l'update ça fonctionne.