[announce]3d photos and videos with Python

[cassioli]

BlueDriver
==========

Here it is a first draft of a program which allows using a couple of nokia phones to take tridimensional pictures and MOVIES!

It's actually a COUPLE of programs, the DRIVER and the RECEIVER. When you press a key on driver, both phones take the snapshot or the video.
Then, you can merge them into a single blue/red anaglyph using this free programs, StereoPhotoMaker and StereoVideoMaker:
http://stereo.jpn.org/eng/

INSTRUCTIONS:
-Set clocks on two phones at same time
-Install DRIVER on PHONE1 and RECEIVER on PHONE2
-Start DRIVER
-Start RECEIVER
-PHONE2 will look for PHONE1: select it, then select "3d photo" service

Now phones are connected. Use PHONE1 to control PHONE2:
0 - take snapshot
1 - start video
2 - stop video

Files are saved with timestamps, to allow easy "coupling" them on PC.

Known issues:
- no finder yet
- possible delay among shots on 2 phones
- 6600 phone raises an error upon first import of camera module: just ignore it, module will be imported twice...

Video feature not tested: I only have ONE phone supporting video in python...

You find attached a sample anaglyph: my working place.


Feel free to extend the program as you like, don't know when I'll have time to complete it...

Note: BlueDriver can actually be used to drive by bluetooth a phone to get it acting as you like!

DRIVER

from socket import *
import appuifw
import keycapture
from appuifw import *
import e32
from e32 import ao_sleep,Ao_lock
import time
from graphics import *
try:
  import camera
except Exception, e:
  print "6600 bug, camera module must be imported twice. Please ignore this error..."
  import camera
  

sock = 0

def quit():
    global sock
    app.exit_key_handler = None
    script_lock.signal()
    capturer.stop()
    sock.close()
    print "PROGRAMMA TERMINATO."
    print
    
    
def cb_capture(key):
    global abort
    if key==keycapture.EKey1:
        sock.send("StartVideo\n");
        start_video()
    if key==keycapture.EKey3:
        sock.send("StopVideo\n");
        stop_video()
    if key==keycapture.EKey0:
        sock.send("Snapshot\n");
        GetSnapshot()
    # Allow time for data to be sent to work around a bug in the socket
    # module.
    e32.ao_sleep(1)  
    print "Command sent."  

def video_callback(err,current_state):
        pass
        
def finder_cb(im):
    im.point((20, 20), outline = (0, 255, 0), width = 25)
        
def start_video():
    global filename
    print "starting video..."
    camera.start_finder(finder_cb)
    filename = "c:\\3Dvid_"+time.strftime('%d-%m-%Y_%H-%M-%S')+'.3gp'
    camera.start_record(filename,video_callback)       
    
def stop_video():
    global filename
    print "stopping video..."
    camera.stop_record()
    camera.stop_finder()
    camera.release()
    print "Video saved to " + filename
    
def GetSnapshot():
    image = camera.take_photo(size = (640,480))
    filename = "c:\\3Dpic_"+time.strftime('%d-%m-%Y_%H-%M-%S')+'.jpg'
    image.save(filename)  
    print "Image saved to "+ filename    
    camera.release()     



      
script_lock = Ao_lock()
app.exit_key_handler = quit
capturer=keycapture.KeyCapturer(cb_capture)
capturer.forwarding=0
capturer.keys=(keycapture.EKey1,keycapture.EKey3,keycapture.EKey7,keycapture.EKey0)
capturer.start()

      
server_socket = socket(AF_BT, SOCK_STREAM)
p = bt_rfcomm_get_available_server_channel(server_socket)
server_socket.bind(("", p))
print "bind done"
server_socket.listen(1)
bt_advertise_service( u"3d photo", server_socket, True, RFCOMM)
set_security(server_socket, AUTH)
print "waiting for connection..."

(sock,peer_addr) = server_socket.accept()
print "Connection estabilished with  %s"%peer_addr
print "Press 0 to take snapshot on both phones"
script_lock.wait()

RECEIVER

import socket
import appuifw
import e32
from e32db import format_time
import time
from graphics import *
try:
  import camera
except Exception, e:
  print "6600 bug, camera module must be imported twice. Please ignore this error..."
  import camera


filename = ""

class BTReader:
    def connect(self):
        self.sock=socket.socket(socket.AF_BT,socket.SOCK_STREAM)
        addr,services=socket.bt_discover()
        print "Discovered: %s, %s"%(addr,services)
        if len(services)>0:
            import appuifw
            choices=services.keys()
            choices.sort()
            choice=appuifw.popup_menu([unicode(services[x])+": "+x
                                       for x in choices],u'Choose port:')
            port=services[choices[choice]]
        else:
            port=services[services.keys()[0]]
        address=(addr,port)
        print "Connecting to "+str(address)+"..."
        self.sock.connect(address)
        print "OK, connection estabilished." 
    def readline(self):
        line=[]
        while 1:
            ch=self.sock.recv(1)
            if(ch=='\n'):
                break
            line.append(ch)
        return ''.join(line)
    def close(self):
        self.sock.close()


def video_callback(err,current_state):
        pass
        
def finder_cb(im):
    im.point((20, 20), outline = (0, 255, 0), width = 25)
        
def start_video():
    global filename
    print "starting video..."
    camera.start_finder(finder_cb)
    filename = "c:\\3Dvid_"+time.strftime('%d-%m-%Y_%H-%M-%S')+'.3gp'
    camera.start_record(filename,video_callback)       
    
def stop_video():
    global filename
    print "stopping video..."
    camera.stop_record()
    camera.stop_finder()
    camera.release()
    print "Video saved to " + filename
    
def GetSnapshot():
    image = camera.take_photo(size = (640,480))
    filename = "c:\\3Dpic_"+time.strftime('%d-%m-%Y_%H-%M-%S')+'.jpg'
    image.save(filename)  
    print "Image saved to "+ filename    
    camera.release()     

bt=BTReader()
bt.connect()
command=bt.readline()
while command != "end":
  if command == "StartVideo":
      start_video()
  if command == "StopVideo":
      stop_video()
  if command == "Snapshot":
      GetSnapshot()
  
  
  command=bt.readline()
print "End."  
bt.close()

[Rafael T.]

Cool, man!

That seems to be a good example of bluetooth application in PyS60.

I'll give it a try later.

Congratulations for the application!

Keep them coming!


BR,

Rafael.

[cassioli]

Cool, man!

That seems to be a good example of bluetooth application in PyS60.

I'll give it a try later.

Thanks.
I think it could be a good base for other applications based on cellphones synchronization in a client-server fashion: free bluetooth messaging, remote (not TOO remote...) controlling a phone, and so on.

About 3d photos/movies, the actual use of this program couple is for far objetcs: naked eye is not able to actually view far objects (more than 100 meters I guess) in real 3d: we "imagine" 3d clouds or 3d mountains or 3d panoramas, but actually we "compute" third dimension by means of mist: the more the object is far, the more it is covered by mist.

Try taking a 3d snapshot of a panorama when the phones are not just 10 cm apart, but 10 or more METERS apart, and you'll see what I mean.
I'll try posting a screenshot tomorrow.

[Rafael T.]

Actually it's a good example for using camera and graphics too

One of the bests client-server apps I've seen!

Can't wait to get another phone for testing it

You may also want to put this code in the Wiki Code Examples

Thanks for contributing with the DiBo!


BR,

Rafael.

[cyke64]

You find attached a sample anaglyph: my working place.

Hello Cassioli

And where is the sample ? I don't see attached file

I saw also interesting project from you in googlecode

BR
Cyke64

[gaba88]

hi cassioli

Great one more application in PyS60 dibo.
This time the idea is really very nice i will test this with my two devices.

Congrats and keep it up.

Enjoy Pythoning
Gaba88

[cassioli]

Hello Cassioli

And where is the sample ? I don't see attached file

Nor do I... Board didn't accept the 130 KB, exceeding 100 KB limit...
Swiching to imageshack:
http://img201.imageshack.us/img201/8...4081845mq4.jpg

[cassioli]

Another possible use can come from "coupling" this application with this other idea of mine:
Phone2PIC

Phone2PIC allows using a phone to drive a PIC processor. And if the PIC is mounted on such a board, you can use it to drive even high-power devices (by means of relais).

You could turn on/off any device in your home just by using your phone! (see attachment)

I also found a generic name for my 3d-photo application: BlueDriver (as it can be used not just to take couple-snaphsots, but to drive a phone by BT).

[JOM]

Wow, impressive - except I haven't tried this yet But it does sound like the very thing I've been looking for! Have to try, if I can create something on top of it

Btw no copy right/left note, but I guess you would allow using it? With credit given etc?

That import error reminds me about similar socket import error discussed earlier in this DiBo: first you get error note, next time none. However in case of sockets, it meant that _socket library was not found and the sw didn't actually work. In your case camera works ok, so it must be something else...

Thanx,

--jouni

[cassioli]

Btw no copy right/left note, but I guess you would allow using

I don't care at all. Do what you want with the code. Just don't forget to thank Jurgen Scheible for his great tutorial: almost all I know and write about python comes from there! Copy&Paste&Edit is the better way I know to learn programming!

Next to come: SMSDriver (see an anticipation inside LCCarTrack.py, read_sms(id) function)

[Rafael T.]

I don't care at all. Do what you want with the code. Just don't forget to thank Jurgen Scheible for his great tutorial: almost all I know and write about python comes from there! Copy&Paste&Edit is the better way I know to learn programming!

Next to come: SMSDriver (see an anticipation inside LCCarTrack.py, read_sms(id) function)

Jouni, you can use this for doing some games!

Cassioli, SMSDriver should be another great idea (I have taken a look into the sms function). LCCarTrack also seems to be espetucular! It's a good example for many modules.


Keep your projects up and continue to share with the DiBo

Congratulations for your great projects!


BR,

Rafael.

[cassioli]

Keep your projects up and continue to share with the DiBo

Congratulations for your great projects!

.

Thanks.
Wanna take a look to all of them?
I'm always looking for additional developers to carry on my ideas...

Nokia Datalogger - http://code.google.com/p/nokdat/ (PYTHON)
LEDremote - SMS-controlled remote control for TV - http://code.google.com/p/ledrem/ (PYTHON)
Car antitheft - http://code.google.com/p/lc-cartrack/ (PYTHON)
Traffic informations (only Rome-Italy) - http://code.google.com/p/trafficlc/ (J2ME)
Home intrusion detection system - http://code.google.com/p/powerwarning/ (PYTHON)
Basic guitar tuner - http://code.google.com/p/freqdet/ (PYTHON)

[Rafael T.]

Thanks.
Wanna take a look to all of them?
I'm always looking for additional developers to carry on my ideas...

Nokia Datalogger - http://code.google.com/p/nokdat/ (PYTHON)
LEDremote - SMS-controlled remote control for TV - http://code.google.com/p/ledrem/ (PYTHON)
Car antitheft - http://code.google.com/p/lc-cartrack/ (PYTHON)
Traffic informations (only Rome-Italy) - http://code.google.com/p/trafficlc/ (J2ME)
Home intrusion detection system - http://code.google.com/p/powerwarning/ (PYTHON)
Basic guitar tuner - http://code.google.com/p/freqdet/ (PYTHON)

Wow, they are so many

I'm taking a look at them yet but all of them seem to be very good ideas. Maybe you can find people here wo want to carrie your ideas. I'll try to help as much as I can

Continue if great work!


BR,

Rafael.