#!/usr/bin/python

#?original?script?by?brainflakes?improved?by?pageauc?peewee2?and?Kesthal
#?www.raspberrypi.org/phpBB3/viewtopic.php?f=43&t=45235

#?You?need?to?install?PIL?to?run?this?script
#?type?“sudo?apt-get?install?python-imaging-tk“?in?an?terminal?window?to?do?this

import?StringIO
import?subprocess
import?os
import?time
from?datetime?import?datetime
from?PIL?import?Image

#?Motion?detection?settings:
#?Threshold??????????-?how?much?a?pixel?has?to?change?by?to?be?marked?as?“changed“
#?Sensitivity????????-?how?many?changed?pixels?before?capturing?an?image?needs?to?be?higher?if?noisy?view
#?ForceCapture???????-?whether?to?force?an?image?to?be?captured?every?forceCaptureTime?seconds?values?True?or?False
#?filepath???????????-?location?of?folder?to?save?photos
#?filenamePrefix?????-?string?that?prefixes?the?file?name?for?easier?identification?of?files.
#?diskSpaceToReserve?-?Delete?oldest?images?to?avoid?filling?disk.?How?much?byte?to?keep?free?on?disk.
#?cameraSettings?????-?““?=?no?extra?settings;?“-hf“?=?Set?horizontal?flip?of?image;?“-vf“?=?Set?vertical?flip;?“-hf?-vf“?=?both?horizontal?and?vertical?flip
threshold?=?10
sensitivity?=?20
forceCapture?=?True
forceCaptureTime?=?60?*?60?#?Once?an?hour
filepath?=?“/home/pi/picam“
filenamePrefix?=?“capture“
diskSpaceToReserve?=?40?*?1024?*?1024?#?Keep?40?mb?free?on?disk
cameraSettings?=?““

#?settings?of?the?photos?to?save
saveWidth???=?1296
saveHeight??=?972
saveQuality?=?15?#?Set?jpeg?quality?（0?to?100）

#?Test-Image?settings
testWidth?=?100
testHeight?=?75

#?this?is?the?default?setting?if?the?whole?image?should?be?scanned?for?changed?pixel
testAreaCount?=?1
testBorders?=?[?[[1testWidth][1testHeight]]?]??#?[?[[start?pixel?on?left?sideend?pixel?on?right?side][start?pixel?on?top?sidestop?pixel?on?bottom?side]]?]
#?testBorders?are?NOT?zero-based?the?first?pixel?is?1?and?the?last?pixel?is?testWith?or?testHeight

#?with?“testBorders“?you?can?define?areas?where?the?script?should?scan?for?changed?pixel
#?for?example?if?your?picture?looks?like?this:
#
#?????....XXXX
#?????........
#?????........
#
#?“.“?is?a?street?or?a?house?“X“?are?trees?which?move?arround?like?crazy?when?the?wind?is?blowing
#?because?of?the?wind?in?the?trees?there?will?be?taken?photos?all?the?time.?to?prevent?this?your?setting?might?look?like?this:

#?testAreaCount?=?2
#?testBorders?=?[?[[150][175]]?[[51100][2675]]?]?#?area?y=1?to?25?not?scanned?in?x=51?to?100

#?even?more?complex?example
#?testAreaCount?=?4
#?testBorders?=?[?[[139][175]]?[[4067][4375]]?[[6885][4875]]?[[86100][4175]]?]

#?in?debug?mode?a?file?debug.bmp?is?written?to?disk?with?marked?changed?pixel?an?with?marked?border?of?scan-area
#?debug?mode?should?only?be?turned?on?while?testing?the?parameters?above
debugMode?=?False?#?False?or?True

#?Capture?a?small?test?image?（for?motion?detection）
def?captureTestImage（settings?width?height）:
????command?=?“raspistill?%s?-w?%s?-h?%s?-t?200?-e?bmp?-n?-o?-“?%?（settings?width?height