def __init__(self, parent,leftImg, rightImg):
"""Constructor, recives QMainWindow, and two PIL Images"""
QGLWidget.__init__(self, parent)
self.hnear = .1; #Closest depth that the camera sees
self.hfar = 50; #Farest depth that the camera sees
self.zpos = -self.hnear; #Z position of the square exactly where hnear is
# Size of the widget
self.winWidth = 100
self.winHeight = 100
# There are 3 display modes 1 -> shows the 2 images side by side
# 2 Shows only the left image, 3 shows only the right image
self.displayMode = 1
self.psize = 4 #Size of the landmarks
self.hideImg = False
self.textureIds = [-1, -1] # Ids of the textures
self.ptsManager = PtsManager()
self.resetVariables()
self.rightImg = rightImg
self.leftImg = leftImg
self.imw, self.imh = self.rightImg.size
self.updateSqrSize()
def __init__(self, dist ,focalLength,ccdWidth, ccdHeigth):
"""Initialize all the settings of the main window"""
self.rightImg = ''
self.leftImg = ''
self.selectedWidget = 1
self.imw = -1
self.imh = -1
QMainWindow.__init__(self, parent)
self.setupUi(self)
self.camera = StereoCam(dist ,focalLength,ccdWidth, ccdHeigth)
self.initWidgets()
self.ptsManager = PtsManager()
#--------------------- Setting SIGNAL --> SLOT-----------
self.connect(self.actionOpen, SIGNAL("activated()"),self.openFile)
self.connect(self.actionSaveLandmarks, SIGNAL("activated()"),self.saveLandmarks)
self.connect(self.actionLoad_Land, SIGNAL("activated()"),self.loadLandmarks)
self.connect(self.actionClearMarks, SIGNAL("activated()"), self.clearLandmarks)
self.connect(self.actionResetMarks, SIGNAL("activated()"), self.resetViewers)
self.connect(self.tabWidget, SIGNAL("currentChanged(int)"), self.tabChanged)
class DigitizerWidget(QGLWidget):
""" 3D Digitizer widget"""
def __init__(self, parent,leftImg, rightImg):
"""Constructor, recives QMainWindow, and two PIL Images"""
QGLWidget.__init__(self, parent)
self.hnear = .1; #Closest depth that the camera sees
self.hfar = 50; #Farest depth that the camera sees
self.zpos = -self.hnear; #Z position of the square exactly where hnear is
# Size of the widget
self.winWidth = 100
self.winHeight = 100
# There are 3 display modes 1 -> shows the 2 images side by side
# 2 Shows only the left image, 3 shows only the right image
self.displayMode = 1
self.psize = 4 #Size of the landmarks
self.hideImg = False
self.textureIds = [-1, -1] # Ids of the textures
self.ptsManager = PtsManager()
self.resetVariables()
self.rightImg = rightImg
self.leftImg = leftImg
self.imw, self.imh = self.rightImg.size
self.updateSqrSize()
def resetVariables(self):
"""Initialize all the internal variables of the widget"""
self.sqrzoom = 1;
self.sqrOffsetX = 0
self.sqrOffsetY = 0
# This variables are used to move the rightImg using the mouse
self.mousex = -1
self.mousey = -1
self.colors = RandomColors()
self.red, self.green, self.blue = self.colors.getColors()
def drawPoints(self):
glPushMatrix()
glPointSize(self.psize)
colorIndex = 1
glBegin(GL_POINTS)
pts = []
if(self.displayMode == 2):
pts = self.ptsManager.leftpts
if(self.displayMode == 3):
pts = self.ptsManager.rightpts
for pt in pts:
#Changing the color for each point
r = self.red[colorIndex % self.colors.difColors]
g = self.green[colorIndex % self.colors.difColors]
b = self.blue[colorIndex % self.colors.difColors]
glColor3f(r,g,b)
glx, gly = self.imgCoorToGlCoor(pt.x, pt.y)
#Displaying vertex
glVertex3f( glx,gly, self.zpos) # Bottom Left Of The Texture and Quad
colorIndex = colorIndex + 1
glColor3f(1,1,1)
glEnd()
glPopMatrix()
def initializeGL(self):
"""Initialize all the OpenGL paramaters """
glClearColor(0.0, 0.0, 0.0, 1.0)#Black background
glEnable(GL_TEXTURE_2D);#Enable texturing
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
self.setMinimumSize(50,50)
self.updateSqrSize()
self.resetVariables()
self.loadTextures(self.leftImg,self.rightImg)
self.updateGL()
def updateSqrSize(self):
""" Updates the square size. Is the biggest square proportional the
the original leftImage that can be fited inside the window"""
if( (self.displayMode == 2) or (self.displayMode == 3) ):
if( (self.imw > self.winWidth) or (self.imh > self.winHeight) ):
if(self.imw > self.winWidth):
self.sqw = self.winWidth
self.sqh = int(self.sqw*(float(self.imh)/float(self.imw)))
if(self.sqh > self.winHeight):
self.sqh = self.winHeight
self.sqw = int(self.winHeight*(float(self.imw)/float(self.imh)))
else:
self.sqh = self.winHeight
self.sqw = int(self.winHeight*(float(self.imw)/float(self.imh)))
else:
# The rightImg is smaller than the window in both directions. Then we maintain
# the original size of the rightImg
self.sqw = self.imw
self.sqh = self.imh
else:
if(self.displayMode == 1):
if( (2*self.imw > self.winWidth) or (self.imh > self.winHeight) ):
if(2*self.imw > self.winWidth):
self.sqw = self.winWidth/2
self.sqh = int(self.sqw*(float(self.imh)/float(self.imw)))
if(self.sqh > self.winHeight):
self.sqh = self.winHeight
self.sqw = int(self.winHeight*(float(self.imw)/float(self.imh)))
else:
self.sqh = self.winHeight
self.sqw = int(self.winHeight*(float(self.imw)/float(self.imh)))
else:
# The rightImg is smaller than the window in both directions. Then we maintain
# the original size of the rightImg
self.sqw = self.imw
self.sqh = self.imh
def loadTextures(self,newleftImg,newrightImg):
"""Loads a texture """
self.rightImg = newrightImg
self.leftImg = newleftImg
self.imw, self.imh = self.rightImg.size
self.textureIds[0] = self.bindTexture(ImageQt.ImageQt(self.leftImg),GL_TEXTURE_2D)
self.textureIds[1] = self.bindTexture(ImageQt.ImageQt(self.rightImg),GL_TEXTURE_2D)
def mouseMoveEvent(self,mouseEvent):
"""Receives events from the mouse, moves the rightImg position"""
x, y = [mouseEvent.x(), mouseEvent.y()]
self.sqrOffsetX = self.sqrOffsetX + (self.mousex - x)
self.sqrOffsetY = self.sqrOffsetY + (self.mousey - y)
self.mousex, self.mousey = x , y
self.updateGL()
def windowToGlCoor(self,x,y):
glx = x - self.winWidth/2
gly = self.winHeight/2 - y
return glx, gly
def glCoorToImage(self,x,y):
""" Transform a glCoordinate into Image coordinate inside [imw,imh]"""
# Actual size of the image
sizew, sizeh = float(self.sqw*self.sqrzoom), float(self.sqh*self.sqrzoom)
# Origin of the image in the GL coordinates
ox, oy = (-sizew/2 - self.sqrOffsetX), (-sizeh/2 + self.sqrOffsetY)
# Ratio of the original image and the displayed one
ratiox, ratioy = (self.imw/sizew), (self.imh/sizeh)
imx = (x - ox)*ratiox
imy = (y - oy)*ratioy
return imx, imy
def imgCoorToGlCoor(self,x,y):
"""Transform an image coordinate into GL coordinate"""
# Actual size of the image
sizew, sizeh = float(self.sqw*self.sqrzoom), float(self.sqh*self.sqrzoom)
# Origin of the image in the GL coordinates
ox, oy = (-sizew/2 - self.sqrOffsetX), (-sizeh/2 + self.sqrOffsetY)
# Ratio of the original image and the displayed one
ratiox, ratioy = (self.imw/sizew), (self.imh/sizeh)
glx = x/ratiox + ox
gly = y/ratioy + oy
return glx, gly
def mousePressEvent(self,mouseEvent):
"""Receives events from the mouse"""
self.mousex, self.mousey = [mouseEvent.x(), mouseEvent.y()]
if(mouseEvent.button() == Qt.RightButton):
# Change the windows coordinates to OpenGL coordinates
glx, gly = self.windowToGlCoor(self.mousex, self.mousey)
# Change the OpengGL coordiantes to Image coordinates
imx, imy = self.glCoorToImage(glx, gly)
if( ((imx>=0) and (imy>=0)) and ((imx<=self.imw) and (imy<=self.imh)) ):
if(self.displayMode == 2):
self.ptsManager.addLeftPoint(imx,imy)
if(self.displayMode == 3):
self.ptsManager.addRightPoint(imx,imy)
# self.ptsManager.printPoints()
else:
print "The selected point is outside of the image"
self.updateGL()
def modifyZoom(self, amount):
"""Used to increase and decrease the zoom"""
self.sqrzoom = max(self.sqrzoom + amount,.1)
self.updateGL()
def wheelEvent(self,wheelEvent):
"""Use wheel in mouse to change zoom"""
if( wheelEvent.delta() > 0):
self.modifyZoom(-.1)
else:
self.modifyZoom(.1)
def updateGL(self):
"""Updates the display. Its a public slot"""
self.updateCamera()
self.updateSqrSize()
self.paintGL()
self.swapBuffers()
def paintGL(self):
"""Glut display function."""
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glColorMask( True, True, True, True )
self.render()#We are only displaying the left rightImg
def resizeGL(self, w, h):
""" Resize the width and height of the square """
#The main window has a top toolbar of size 50
glViewport(0,0, w, h)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
self.winHeight = h
self.winWidth = w
self.updateGL()
def keyPressEvent(self,key):
"""Manage the keys pressed by the user"""
if( (key.text() == 'q')or (key.text() == 'Q')):
sys.exit(0)
if( (key.text() == '1')or (key.text() == '2')or (key.text() == '3')):
self.displayMode = int(key.text())
if( (key.text() == 'z') or (key.text() == 'Z')):
self.ptsManager.removeLastPoint()
if( (key.text() == 'h') or (key.text() == 'H')):
self.hideImg = not(self.hideImg)
# if( (key.text() == 'r') or (key.text() == 'R')):
# self.resetVariables()
self.render()
self.updateGL()
def updateCamera(self):
"""Updates the position of the cameras"""
winw, winh = [self.winWidth, self.winHeight]#Set rightImg size as local variables
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
# This formula is straight forward from http://www.lighthouse3d.com/opengl/viewfrustum/index.php?defvf
#In this case the choosen camera (left or right) needs to see
#exactly one of the rightImgs
param1 = float(winh)/float(2*(self.hnear))
fov = 2*math.degrees(math.atan(param1))
ratio = float(winw)/float(winh)
gluPerspective(fov, ratio , self.hnear,self.hfar)
gluLookAt( 0,0,0,0,0,-1,0,1,0 )
def render(self):
"""Render the scene."""
#Size of the rectangle. Reduce the size of the border
sizew = float(self.sqw*self.sqrzoom)
sizeh = float(self.sqh*self.sqrzoom)
if( not (self.hideImg)):
if( (self.displayMode == 2) or (self.displayMode == 3)):#Displays only the left image
#Origin of the square containing the texture
ox = -sizew/2 - self.sqrOffsetX
oy = -sizeh/2 + self.sqrOffsetY
if(self.displayMode == 2):
self.drawSquare(self.textureIds[0], ox, oy, sizew, sizeh)
else:
self.drawSquare(self.textureIds[1], ox, oy, sizew, sizeh)
else:
if(self.displayMode == 1):
# Draw left image
ox = -sizew - self.sqrOffsetX
oy = -sizeh/2 + self.sqrOffsetY
self.drawSquare(self.textureIds[0], ox, oy, sizew, sizeh)
# Draw right image
ox = - self.sqrOffsetX
oy = -sizeh/2 + self.sqrOffsetY
self.drawSquare(self.textureIds[1], ox, oy, sizew, sizeh)
self.drawPoints()
def drawSquare(self, textId, ox, oy, sizew, sizeh):
"""Renders a square with a texture with the size and origin defined"""
glPushMatrix()
glColor3f(1,1,1)
glBindTexture(GL_TEXTURE_2D, textId)
zdistance = self.zpos
glBegin(GL_QUADS)
glTexCoord2f(0.0, 0.0); glVertex3f(ox ,oy, zdistance) # Bottom Left Of The Texture and Quad
glTexCoord2f(1.0, 0.0); glVertex3f(ox + sizew,oy, zdistance) # Bottom Right Of The Texture and Quad
glTexCoord2f(1.0, 1.0); glVertex3f(ox + sizew,oy + sizeh, zdistance) # Top Right Of The Texture and Quad
glTexCoord2f(0.0, 1.0); glVertex3f(ox ,oy + sizeh, zdistance) # Top Left Of The Texture and Quad
glEnd()
glPopMatrix()
class QtGLMainWindow(QMainWindow, Ui_QtMainWin):
# Properties of the Camera
# Param1 Distance between cameras
# Param2 Focall length
# Lens focal length f=6.3 - 18.9mm, equivalent to 35.0 - 105.0mm on a 35mm camera
# Number of pixels 32048 x 1536 (img size)
# CCD Sensor 1/2.3 Diagonal 7.7 mm Width 6.16 mm Height 4.62 mm
# Everything is in centimeters
def __init__(self, dist ,focalLength,ccdWidth, ccdHeigth):
"""Initialize all the settings of the main window"""
self.rightImg = ''
self.leftImg = ''
self.selectedWidget = 1
self.imw = -1
self.imh = -1
QMainWindow.__init__(self, parent)
self.setupUi(self)
self.camera = StereoCam(dist ,focalLength,ccdWidth, ccdHeigth)
self.initWidgets()
self.ptsManager = PtsManager()
#--------------------- Setting SIGNAL --> SLOT-----------
self.connect(self.actionOpen, SIGNAL("activated()"),self.openFile)
self.connect(self.actionSaveLandmarks, SIGNAL("activated()"),self.saveLandmarks)
self.connect(self.actionLoad_Land, SIGNAL("activated()"),self.loadLandmarks)
self.connect(self.actionClearMarks, SIGNAL("activated()"), self.clearLandmarks)
self.connect(self.actionResetMarks, SIGNAL("activated()"), self.resetViewers)
self.connect(self.tabWidget, SIGNAL("currentChanged(int)"), self.tabChanged)
def tabChanged(self,index):
self.updateWidgets()
def adminTab(self, action):
"""Manage the widgets inside the tab"""
if(action == "init"):
self.tabWidget = QtGui.QTabWidget(self.centralwidget)
size = self.size()
self.tabWidget.setGeometry(QtCore.QRect(0, 0, size.width(), size.height()))
self.tabWidget.setObjectName("tabWidget")
self.tabCamera = self.cameraWidget
self.tabCamera.setObjectName("Camera")
self.tabWidget.addTab(self.tabCamera, "Camera")
if(action == "addImgViewer"):
# When adding or updating this viewer we need to update the
# size of the image
self.imw = self.leftImg.size[0]
self.imh = self.leftImg.size[1]
if( self.glDigitizerWidet == None):#First time
self.glDigitizerWidet = DigitizerWidget(self,self.leftImg,self.rightImg)
self.tabImgViewer = self.glDigitizerWidet
self.tabImgViewer.setObjectName("Image")
self.tabWidget.addTab(self.tabImgViewer, "Image")
else:#Only updating the image
self.glDigitizerWidet.loadTextures(self.leftImg,self.rightImg)
self.tabWidget.setCurrentWidget(self.tabImgViewer)
self.glDigitizerWidet.render()
self.glDigitizerWidet.updateGL()
if(action == "updateMarksViewer"):
if(self.marksViewerWidget == None):
#Initializing the marks viewer widget
self.marksViewerWidget = LandmarkViewer(self.imw,self.imh)
self.tabMarkViewer = self.marksViewerWidget
self.tabMarkViewer.setObjectName("3D Marks")
self.tabWidget.addTab(self.tabMarkViewer, "3D Marks")
self.tabWidget.setCurrentWidget(self.tabMarkViewer)
self.marksViewerWidget.paintGL()
self.marksViewerWidget.calcMaxValues()
def resizeEvent(self, event):
"""When the main window is resized, all the tabs change size"""
size = event.size()
self.tabWidget.setGeometry(QtCore.QRect(0, 0, size.width(), size.height()))
def resetViewers(self):
"""Reset the landmark viewer to its initial state (no rotation nor zoom)"""
if( self.marksViewerWidget != None):
self.marksViewerWidget.resetView()
self.marksViewerWidget.render()
self.marksViewerWidget.updateGL()
if( self.glDigitizerWidet != None):
self.glDigitizerWidet.resetVariables()
self.glDigitizerWidet.render()
self.glDigitizerWidet.updateGL()
def updateWidgets(self):
"""Updates the landmarks in each widget"""
if( self.glDigitizerWidet != None):
self.glDigitizerWidet.updateGL()
if( self.marksViewerWidget != None):
self.marksViewerWidget.calcMaxValues()
self.marksViewerWidget.updateGL()
def clearLandmarks(self):
"""Delets all the landmarks"""
self.ptsManager.initVars()
self.updateWidgets()
def loadLandmarks(self):
"""Loads the 3D landmarks from a file. If the Digitizer widget is initializer
those landmarks are copied to the widget"""
fileName = QFileDialog.getOpenFileName(self,"Choose txt file with landmarks", "~/", \
"Text files(*.txt *.TXT)")
if( fileName != ''):
# Load the points
self.imw, self.imh = self.ptsManager.loadPoints(fileName)
if(self.glDigitizerWidet != None):
self.glDigitizerWidet.updateGL()
self.adminTab("updateMarksViewer")
self.enableMenus(True)
self.ptsManager.printPointsWithDepth()
def saveLandmarks(self):
fileName = QFileDialog.getSaveFileName(self,"Save File", \
"~/land.txt","Text file (*.txt)")
if( fileName != ''):
self.ptsManager.savePoints(fileName,self.imw,self.imh)
def keyPressEvent(self,key):
""" Manages the keyboard inputs and passes them to the central widget"""
if( (key.text() == 'q')or (key.text() == 'Q')):
sys.exit(0)
# Prints the landmarks
if( (key.text() == 'p')or (key.text() == 'P')):
self.ptsManager.printPointsWithDepth()
# Computes the depth of the landmarks and update local variable ptsManager
if( (key.text() == 'd')or (key.text() == 'D')):
self.ptsManager.calcDepth(self.camera,self.imw, self.imh)
self.updateWidgets()
if(self.ptsManager.total > 0):
self.enableMenus(True)
QtGui.QMessageBox.about(self, "Message",
"Depth computed successfully!")
self.adminTab("updateMarksViewer")
else:
QtGui.QMessageBox.about(self, "Warning",
"There are no landmarks")
if( (key.text() == 'r') or (key.text() == 'R')):
self.resetViewers()
if(self.glDigitizerWidet != None):
self.glDigitizerWidet.keyPressEvent(key)
if(self.marksViewerWidget != None):
self.marksViewerWidget.keyPressEvent(key)
def enableMenus(self,enable):
"""Enables or disables the landmarks menus"""
self.actionSaveLandmarks.setEnabled(enable)
self.actionClearMarks.setEnabled(enable)
self.actionResetMarks.setEnabled(enable)
def initWidgets(self):
"""Initialize all the widgets that can be used for this window as none"""
self.glDigitizerWidet = None
self.marksViewerWidget = None
self.cameraWidget = AdminCameraWidget(self.camera)
self.adminTab("init") #Initialize the tab object
def openFile(self):
fileName = QFileDialog.getOpenFileName(self,"Choose left image or MPO file", "~/", \
"File types (*.png *.jpg *.bmp *.mpo *.PNG *.JPG *.BMP *.MPO)")
if( fileName != ''):
#We should check if we are opening an mpo file, or any other file type
# which contains the two images togethe
if( (fileName.contains(".MPO")) or (fileName.contains(".mpo"))):
f = open(fileName)
self.leftImg, self.rightImg, size = split_mpo(f)
self.adminTab("addImgViewer")
f.close()
else:
self.leftImg = Image.open(str(fileName))
fileName = QFileDialog.getOpenFileName(self,"Choose right image", "~/testImages", format("File types (*"+getExtFromFile(fileName)+")"))
if( fileName != ''):
self.rightImg= Image.open(str(fileName))
self.adminTab("addImgViewer")
def closeFile(self):
self.centralwidget = self
print "Closing file:"+fileName