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RPICameraGUI.py
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RPICameraGUI.py
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# Explore the Raspberry Pi Camera in a GUI
# the cmd line instruction used to generate the photo is shown below the photo
# Bill Grainger June 2013 updated Sept 2013
# I learnt a lot about python to create this from various articles on stackoverflow forum
# and image_viewer2.py by created on 03-20-2010 by Mike Driscoll
import os
import wx
import subprocess # needed to run external program raspistill
from wx.lib.pubsub import Publisher
defaultfilename = 'image.jpg'
########################################################################
class ViewerPanel(wx.Panel):
"""
creates the main screen
"""
#----------------------------------------------------------------------
def __init__(self, parent):
"""set up for playing with images"""
wx.Panel.__init__(self, parent)
width, height = wx.DisplaySize()
self.photoMaxSize = height - 200
self.img = wx.EmptyImage(self.photoMaxSize,self.photoMaxSize)
self.image_name=""
# set up for communication between instances of differnet classes
Publisher().subscribe(self.updateImages, ("update images"))
self.layout()
#----------------------------------------------------------------------
def fillCS(self):
""" this draws window to collect all the options for the next image"""
# screen layout
xoffset= 2
xcomoffset=170
#image size defaults
w=1920
h=1080
# option list
self.cbw=wx.CheckBox(self.CS, -1, '-w ', (xoffset, 50))
self.cbh=wx.CheckBox(self.CS, -1, '-h ', (xoffset, 80))
self.cbo=wx.CheckBox(self.CS, -1, '-o ', (xoffset, 110))
self.cbq=wx.CheckBox(self.CS, -1, '-q ', (xoffset, 140))
self.cbt=wx.CheckBox(self.CS, -1, '-t ', (xoffset, 170))
self.cbsh=wx.CheckBox(self.CS, -1, '-sh', (xoffset, 200))
self.cbco=wx.CheckBox(self.CS, -1, '-co ', (xoffset, 230))
self.cbbr=wx.CheckBox(self.CS, -1, '-br ', (xoffset, 260))
self.cbsa=wx.CheckBox(self.CS, -1, '-sa ', (xoffset, 290))
self.cbrot=wx.CheckBox(self.CS, -1, '-rot ', (xoffset, 320))
self.cbex=wx.CheckBox(self.CS, -1, '-ex ', (xoffset, 350))
self.cbev=wx.CheckBox(self.CS, -1, '-ev ', (xoffset, 380))
self.cbawb=wx.CheckBox(self.CS, -1, '-awb ', (xoffset, 410))
self.cbifx=wx.CheckBox(self.CS, -1, '-ifx ', (xoffset, 440))
# default is to save to a file and have a 1 second delay
self.cbo.SetValue(True)
self.cbt.SetValue(True)
# allow changes some with restricted ranges or restricted choices
self.scw = wx.SpinCtrl(self.CS, -1, str(w), (xoffset+40, 45), (60, -1), min=20, max=5000)
self.sch = wx.SpinCtrl(self.CS, -1, str(h), (xoffset+40, 75), (60, -1), min=20, max=5000)
self.oname = wx.TextCtrl(self.CS, pos=(xoffset+40,105),size=(120, -1),value=defaultfilename) # default filename given
self.scq = wx.SpinCtrl(self.CS, -1, str(75), (xoffset+40, 135), (60, -1), min=0, max=100)
self.sct = wx.SpinCtrl(self.CS, -1, str(1000), (xoffset+40, 165), (80, -1), min=100, max=100000000)
self.scsh = wx.SpinCtrl(self.CS, -1, str(0), (xoffset+40, 195), (60, -1), min=-100, max=100)
self.scco = wx.SpinCtrl(self.CS, -1, str(0), (xoffset+40, 225), (60, -1), min=-100, max=100)
self.scbr = wx.SpinCtrl(self.CS, -1, str(0), (xoffset+40, 255), (60, -1), min=0, max=100)
self.scsa = wx.SpinCtrl(self.CS, -1, str(0), (xoffset+40, 285), (60, -1), min=-100, max=100)
rotmodes = ['0','90','180','270']
self.scrot = wx.ComboBox(self.CS, -1, pos=(xoffset+40, 315), size=(90, -1), choices=rotmodes, style=wx.CB_READONLY)
exposuremodes = ['off','auto','night','nightpreview','backlight',
'spotlight','sports','snow','beach','verylong','fixedfps','antishake','fireworks']
self.scex = wx.ComboBox(self.CS, -1, pos=(xoffset+40, 345), size=(90, -1), choices=exposuremodes, style=wx.CB_READONLY)
self.scev = wx.SpinCtrl(self.CS, -1, str(0), (xoffset+40, 375), (60, -1), min=-10, max=10)
awbmodes = ['off','auto','sun','cloudshade','tungsten','fluorescent','incandescent','flash','horizon']
self.scawb = wx.ComboBox(self.CS, -1, pos=(xoffset+40, 405), size=(90, -1), choices=awbmodes, style=wx.CB_READONLY)
ifxmodes = ['none','negative','solarise','whiteboard','blackboard','sketch','denoise','emboss','oilpaint',
'hatch','gpen','pastel','watercolour','film','blur']
self.scifx = wx.ComboBox(self.CS, -1, pos=(xoffset+40, 435), size=(90, -1), choices=ifxmodes, style=wx.CB_READONLY)
wx.Button(self.CS, 1, 'Take Photo', (30, 470))
# add brief explanations of settings
wx.StaticText(self.CS, -1, 'DETAILS', (xcomoffset,1))
wx.StaticText(self.CS, -1,'width in pixels' , (xcomoffset,50))
wx.StaticText(self.CS, -1,'height in pixels' , (xcomoffset,80))
wx.StaticText(self.CS, -1,'filename for picture' , (xcomoffset,110))
wx.StaticText(self.CS, -1,'quality of jpg' , (xcomoffset,140))
wx.StaticText(self.CS, -1,'time delay (ms) before' , (xcomoffset,170))
wx.StaticText(self.CS, -1,'sharpness -100 - 100' , (xcomoffset,200))
wx.StaticText(self.CS, -1,'contrast -100 - 100' , (xcomoffset,230))
wx.StaticText(self.CS, -1,'brightness 0 - 100' , (xcomoffset,260))
wx.StaticText(self.CS, -1,'saturation -100 - 100' , (xcomoffset,290))
wx.StaticText(self.CS, -1,'rotate image' , (xcomoffset,320))
wx.StaticText(self.CS, -1,'exposure mode' , (xcomoffset,350))
wx.StaticText(self.CS, -1,'exposure compensation -10 - 10' , (xcomoffset,380))
wx.StaticText(self.CS, -1,'automatic white balance' , (xcomoffset,410))
wx.StaticText(self.CS, -1,'image effect' , (xcomoffset,440))
# when happy take a new picture
self.Bind(wx.EVT_BUTTON, self.TakePic, id=1)
#----------------------------------------------------------------------
def TakePic(self, event):
global defaultfilename
# pick up all the settings selected and add to command line to be usd to take a picture
self.cmdln='raspistill '
if self.cbw.GetValue() :
self.cmdln=self.cmdln + '-w ' + str(self.scw.GetValue()) +' '
if self.cbh.GetValue() :
self.cmdln=self.cmdln + '-h ' + str(self.sch.GetValue()) +' '
if self.cbo.GetValue() :
self.cmdln=self.cmdln + '-o "' + str(self.oname.GetValue())+'" '
if self.cbq.GetValue() :
self.cmdln=self.cmdln + '-q ' + str(self.scq.GetValue())+' '
if self.cbt.GetValue() :
self.cmdln=self.cmdln + '-t ' + str(self.sct.GetValue())+' '
if self.cbsh.GetValue() :
self.cmdln=self.cmdln + '-sh ' + str(self.scsh.GetValue())+' '
if self.cbco.GetValue() :
self.cmdln=self.cmdln + '-co ' + str(self.scco.GetValue())+' '
if self.cbbr.GetValue() :
self.cmdln=self.cmdln + '-br ' + str(self.scbr.GetValue())+' '
if self.cbsa.GetValue() :
self.cmdln=self.cmdln + '-sa ' + str(self.scsa.GetValue())+' '
if self.cbrot.GetValue() :
self.cmdln=self.cmdln + '-rot ' + str(self.scrot.GetValue())+' '
if self.cbex.GetValue() :
self.cmdln=self.cmdln + '-ex ' + str(self.scex.GetValue())+' '
if self.cbev.GetValue() :
self.cmdln=self.cmdln + '-ev ' + str(self.scev.GetValue())+' '
if self.cbawb.GetValue() :
self.cmdln=self.cmdln + '-awb ' + str(self.scawb.GetValue())+' '
if self.cbifx.GetValue() :
self.cmdln=self.cmdln + '-ifx ' + str(self.scifx.GetValue())+' '
defaultfilename = str(self.oname.GetValue())
# call external program ro take a picture
subprocess.check_call([self.cmdln], shell=True)
# update image on screen
Publisher().sendMessage("update images","")
#----------------------------------------------------------------------
def layout(self):
"""
Layout the widgets on the panel
"""
self.bigsizer = wx.BoxSizer(wx.HORIZONTAL)
self.mainSizer = wx.BoxSizer(wx.VERTICAL)
btnSizer = wx.BoxSizer(wx.HORIZONTAL)
self.imageCtrl = wx.StaticBitmap(self, wx.ID_ANY,
wx.BitmapFromImage(self.img))
self.mainSizer.Add(self.imageCtrl, 0, wx.ALL|wx.CENTER, 5)
self.imageLabel = wx.StaticText(self, label="")
self.mainSizer.Add(self.imageLabel, 1, wx.ALL, 5)
btnData = [("Rot Clock 90", btnSizer, self.onRotClock),
("Rot Anti-clock 90", btnSizer, self.onRotAclock)]
for data in btnData:
label, sizer, handler = data
self.btnBuilder(label, sizer, handler)
self.mainSizer.Add(btnSizer, 1, wx.CENTER)
self.CS=wx.Panel(self,0, size=(100,500))
self.fillCS()
self.bigsizer.Add(self.CS, 0, wx.ALL,5)
self.bigsizer.Add(self.mainSizer, 1, wx.ALL,5)
self.SetSizer(self.bigsizer)
#----------------------------------------------------------------------
def btnBuilder(self, label, sizer, handler):
"""
Builds a button, binds it to an event handler and adds it to a sizer
"""
btn = wx.Button(self, label=label)
btn.Bind(wx.EVT_BUTTON, handler)
sizer.Add(btn, 0, wx.ALL|wx.CENTER, 5)
#----------------------------------------------------------------------
def loadImage(self, image):
""""""
self.image_name = os.path.basename(image)
self.img = wx.Image(image, wx.BITMAP_TYPE_ANY)
self.rescaleImage()
#----------------------------------------------------------------------
def rescaleImage(self):
# scale the image to fit frame, preserving the aspect ratio
W = self.img.GetWidth()
H = self.img.GetHeight()
if W > H:
NewW = self.photoMaxSize
NewH = self.photoMaxSize * H / W
else:
NewH = self.photoMaxSize
NewW = self.photoMaxSize * W / H
self.img = self.img.Scale(NewW,NewH)
self.imageCtrl.SetBitmap(wx.BitmapFromImage(self.img))
self.imageLabel.SetLabel(self.cmdln)
self.Refresh()
Publisher().sendMessage("resize", "")
#----------------------------------------------------------------------
def rotPictureClock(self):
"""
Rotates the current picture clockwise but only does it once BG 12/6/13
as it does not store teh rotated image
"""
self.img = self.img.Rotate90(True)
# may need to scale the image, preserving the aspect ratio
self.rescaleImage()
#----------------------------------------------------------------------
def rotPictureAclock(self):
"""
Rotates the current picture anti-clockwise but only does it once BG 12/6/13
as it does not store teh rotated image
"""
self.img = self.img.Rotate90(False)
# may need to scale the image, preserving the aspect ratio
self.rescaleImage()
#----------------------------------------------------------------------
def updateImages(self,msg):
"""
"""
self.loadImage(defaultfilename)
#----------------------------------------------------------------------
def onRotClock(self, event):
"""
Rotates Image clockwise method, note it works on the image not the camera
"""
self.rotPictureClock()
#----------------------------------------------------------------------
def onRotAclock(self, event):
"""
Rotates Image anti-clockwise method
"""
self.rotPictureAclock()
########################################################################
class ViewerFrame(wx.Frame):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, title="Raspberry Pi Camera Simple GUI")
panel = ViewerPanel(self)
Publisher().subscribe(self.resizeFrame, ("resize"))
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(panel, 1, wx.EXPAND)
self.SetSizer(self.sizer)
self.Show()
self.sizer.Fit(self)
self.Center()
#----------------------------------------------------------------------
def resizeFrame(self, msg):
""""""
self.sizer.Fit(self)
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.PySimpleApp()
frame = ViewerFrame()
app.MainLoop()