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2to3.html
63.71
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__builtin__.html
11.79
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__future__.html
15.58
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__main__.html
8.33
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_winreg.html
73.99
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abc.html
26.82
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aepack.html
15.47
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aetools.html
18.79
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aetypes.html
27.08
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aifc.html
29.59
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al.html
22.13
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allos.html
35.48
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anydbm.html
19.31
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archiving.html
10.64
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argparse.html
269.59
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array.html
35.35
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ast.html
42.42
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asynchat.html
35.84
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asyncore.html
43.22
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atexit.html
19.23
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audioop.html
41.32
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autogil.html
9.77
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base64.html
24.8
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basehttpserver.html
40.6
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bastion.html
13.02
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bdb.html
50.06
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binascii.html
26.64
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binhex.html
12.66
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bisect.html
28.52
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bsddb.html
32.02
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bz2.html
31.92
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calendar.html
50.16
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carbon.html
54.14
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cd.html
35.24
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cgi.html
58.4
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cgihttpserver.html
15.12
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cgitb.html
13.5
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chunk.html
17.41
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cmath.html
32.41
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cmd.html
32.69
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code.html
28.92
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codecs.html
125.92
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codeop.html
16.42
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collections.html
150.36
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colorpicker.html
9.02
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colorsys.html
14.38
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commands.html
16.63
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compileall.html
21.18
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compiler.html
78.14
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configparser.html
73.92
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constants.html
14.68
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contextlib.html
22.91
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cookie.html
45.38
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cookielib.html
102.78
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copy.html
14.21
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copy_reg.html
15.82
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crypt.html
11.62
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crypto.html
8.35
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csv.html
82.79
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ctypes.html
280.57
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curses.ascii.html
28.97
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curses.html
200.94
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curses.panel.html
18.43
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custominterp.html
8.59
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datatypes.html
18.84
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datetime.html
261.02
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dbhash.html
18.4
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dbm.html
14.75
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debug.html
11.28
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decimal.html
239.14
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development.html
15.27
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difflib.html
96.93
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dircache.html
13.66
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dis.html
96.52
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distribution.html
8.27
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distutils.html
10.97
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dl.html
19.27
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doctest.html
193.18
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docxmlrpcserver.html
20.02
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dumbdbm.html
16.74
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dummy_thread.html
11.04
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dummy_threading.html
9.96
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easydialogs.html
38.83
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email-examples.html
47.2
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email.charset.html
32.45
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email.encoders.html
14.09
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email.errors.html
19.2
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email.generator.html
24.78
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email.header.html
31.12
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email.html
55.3
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email.iterators.html
14.22
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email.message.html
74.91
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email.mime.html
34.51
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email.parser.html
37.09
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email.utils.html
30.04
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ensurepip.html
20.21
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errno.html
52.31
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exceptions.html
73.4
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fcntl.html
27.85
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filecmp.html
26.49
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fileformats.html
10.21
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fileinput.html
29.36
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filesys.html
11.55
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fl.html
71.58
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fm.html
15
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fnmatch.html
17.78
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formatter.html
43.91
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fpectl.html
17.84
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fpformat.html
12.65
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fractions.html
27.17
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framework.html
44.24
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frameworks.html
8.11
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ftplib.html
56.56
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functions.html
216.84
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functools.html
31.06
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future_builtins.html
15.9
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gc.html
30.74
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gdbm.html
19.35
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gensuitemodule.html
14.54
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getopt.html
26.56
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getpass.html
12.5
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gettext.html
91.32
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gl.html
26.71
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glob.html
15.42
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grp.html
12.33
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gzip.html
21.95
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hashlib.html
27.4
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heapq.html
36.72
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hmac.html
15.97
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hotshot.html
22.69
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htmllib.html
29.9
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htmlparser.html
45.11
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httplib.html
78.55
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i18n.html
10.61
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ic.html
22.03
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idle.html
45.74
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imageop.html
20.94
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imaplib.html
69.9
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imgfile.html
14.91
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imghdr.html
13.43
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imp.html
41.48
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importlib.html
10.27
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imputil.html
36.11
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index.html
82.54
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inspect.html
64.31
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internet.html
26.77
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intro.html
9.76
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io.html
122.3
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ipc.html
17.18
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itertools.html
129.91
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jpeg.html
15.36
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json.html
79.09
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keyword.html
9.27
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language.html
12.35
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linecache.html
12.7
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locale.html
68.54
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logging.config.html
82.23
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logging.handlers.html
91.96
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logging.html
123.15
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mac.html
24.49
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macos.html
18.51
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macosa.html
14.55
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macostools.html
19.67
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macpath.html
9.19
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mailbox.html
185.53
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mailcap.html
15.3
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markup.html
20.37
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marshal.html
19.88
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math.html
50.52
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md5.html
16.65
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mhlib.html
30.04
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mimetools.html
23.84
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mimetypes.html
35.82
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mimewriter.html
18.19
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mimify.html
16.96
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miniaeframe.html
14.5
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misc.html
7.77
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mm.html
10.19
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mmap.html
33.52
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modulefinder.html
19.85
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modules.html
9.68
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msilib.html
72.78
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msvcrt.html
24.1
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multifile.html
28.82
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multiprocessing.html
423.97
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mutex.html
13.56
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netdata.html
19.28
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netrc.html
15.51
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new.html
16.1
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nis.html
13.19
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nntplib.html
51.08
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numbers.html
40.91
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numeric.html
14.85
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operator.html
118.32
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optparse.html
251.08
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os.html
270.49
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os.path.html
48.87
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ossaudiodev.html
49.79
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othergui.html
9.98
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parser.html
44.52
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pdb.html
41.44
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persistence.html
16.25
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pickle.html
107.94
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pickletools.html
13.21
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pipes.html
21.85
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pkgutil.html
30.59
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platform.html
40.14
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plistlib.html
20.96
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popen2.html
30.13
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poplib.html
27.93
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posix.html
17.27
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posixfile.html
23.68
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pprint.html
36.42
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profile.html
76.65
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pty.html
11.42
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pwd.html
13.53
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py_compile.html
13.33
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pyclbr.html
18.14
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pydoc.html
14.33
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pyexpat.html
93.28
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python.html
13.53
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queue.html
29.64
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quopri.html
14.5
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random.html
47.78
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re.html
163.11
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readline.html
41.2
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repr.html
24.57
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resource.html
30.86
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restricted.html
12.69
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rexec.html
43.59
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rfc822.html
51.25
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rlcompleter.html
15.29
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robotparser.html
15.01
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runpy.html
23.55
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sched.html
21.76
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scrolledtext.html
10.67
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select.html
50.17
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sets.html
39.92
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sgi.html
11.09
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sgmllib.html
38.77
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sha.html
14.55
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shelve.html
32.93
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shlex.html
38.43
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shutil.html
49.49
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signal.html
36.52
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simplehttpserver.html
21.57
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simplexmlrpcserver.html
40.41
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site.html
29
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smtpd.html
15.64
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smtplib.html
51.86
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sndhdr.html
12.05
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socket.html
126.94
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socketserver.html
81.38
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someos.html
17.09
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spwd.html
12.25
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sqlite3.html
154.12
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ssl.html
214.5
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stat.html
41.11
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statvfs.html
13.24
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stdtypes.html
309.83
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string.html
129.58
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stringio.html
21.1
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stringprep.html
21.4
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strings.html
16.42
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struct.html
47.68
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subprocess.html
117
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sun.html
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sunau.html
35.43
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sunaudio.html
21.05
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symbol.html
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symtable.html
29.03
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sys.html
118.12
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sysconfig.html
28.8
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syslog.html
21.29
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tabnanny.html
12.78
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tarfile.html
99.54
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telnetlib.html
30.46
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tempfile.html
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termios.html
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test.html
61.42
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textwrap.html
32.28
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thread.html
22.67
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threading.html
92.04
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time.html
65.55
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timeit.html
44.38
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tix.html
56.73
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tk.html
26.76
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tkinter.html
86.67
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token.html
27.31
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tokenize.html
21.69
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trace.html
33.91
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traceback.html
44.22
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ttk.html
123.83
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tty.html
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turtle.html
246.17
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types.html
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undoc.html
25.54
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unicodedata.html
22.64
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unittest.html
246.75
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unix.html
11.9
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urllib.html
71.61
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urllib2.html
128.77
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urlparse.html
49.04
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user.html
13.41
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userdict.html
32.96
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uu.html
13.25
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uuid.html
33.55
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warnings.html
51.86
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wave.html
29.08
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weakref.html
41.14
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webbrowser.html
29.53
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whichdb.html
10.44
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windows.html
10.37
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winsound.html
22.56
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wsgiref.html
94.38
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xdrlib.html
38.05
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xml.dom.html
110.39
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xml.dom.minidom.html
45.23
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xml.dom.pulldom.html
16.32
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xml.etree.elementtree.html
124.2
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xml.html
18.76
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xml.sax.handler.html
47.5
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xml.sax.html
26.04
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xml.sax.reader.html
51.4
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xml.sax.utils.html
18.11
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xmlrpclib.html
71.79
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zipfile.html
67.26
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zipimport.html
24.32
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zlib.html
34.41
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(deprecated) (IRIX)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">jpeg</span></code></a> — Read and write JPEG files<a class="headerlink" href="#module-jpeg" title="Permalink to this headline">¶</a></h1> <div class="deprecated"> <p><span class="versionmodified deprecated">Deprecated since version 2.6: </span>The <a class="reference internal" href="#module-jpeg" title="jpeg: Read and write image files in compressed JPEG format. (deprecated) (IRIX)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">jpeg</span></code></a> module has been removed in Python 3.</p> </div> <p id="index-0">The module <a class="reference internal" href="#module-jpeg" title="jpeg: Read and write image files in compressed JPEG format. (deprecated) (IRIX)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">jpeg</span></code></a> provides access to the jpeg compressor and decompressor written by the Independent JPEG Group (IJG). JPEG is a standard for compressing pictures; it is defined in ISO 10918. For details on JPEG or the Independent JPEG Group software refer to the JPEG standard or the documentation provided with the software.</p> <p id="index-1">A portable interface to JPEG image files is available with the Python Imaging Library (PIL) by Fredrik Lundh. Information on PIL is available at <a class="reference external" href="http://www.pythonware.com/products/pil/">http://www.pythonware.com/products/pil/</a>.</p> <p>The <a class="reference internal" href="#module-jpeg" title="jpeg: Read and write image files in compressed JPEG format. (deprecated) (IRIX)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">jpeg</span></code></a> module defines an exception and some functions.</p> <dl class="py exception"> <dt class="sig sig-object py" id="jpeg.error"> <em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">jpeg.</span></span><span class="sig-name descname"><span class="pre">error</span></span><a class="headerlink" href="#jpeg.error" title="Permalink to this definition">¶</a></dt> <dd><p>Exception raised by <a class="reference internal" href="#jpeg.compress" title="jpeg.compress"><code class="xref py py-func docutils literal notranslate"><span class="pre">compress()</span></code></a> and <a class="reference internal" href="#jpeg.decompress" title="jpeg.decompress"><code class="xref py py-func docutils literal notranslate"><span class="pre">decompress()</span></code></a> in case of errors.</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="jpeg.compress"> <span class="sig-prename descclassname"><span class="pre">jpeg.</span></span><span class="sig-name descname"><span class="pre">compress</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">w</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">h</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">b</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#jpeg.compress" title="Permalink to this definition">¶</a></dt> <dd><p id="index-2">Treat data as a pixmap of width <em>w</em> and height <em>h</em>, with <em>b</em> bytes per pixel. The data is in SGI GL order, so the first pixel is in the lower-left corner. This means that <code class="xref py py-func docutils literal notranslate"><span class="pre">gl.lrectread()</span></code> return data can immediately be passed to <a class="reference internal" href="#jpeg.compress" title="jpeg.compress"><code class="xref py py-func docutils literal notranslate"><span class="pre">compress()</span></code></a>. Currently only 1 byte and 4 byte pixels are allowed, the former being treated as greyscale and the latter as RGB color. <a class="reference internal" href="#jpeg.compress" title="jpeg.compress"><code class="xref py py-func docutils literal notranslate"><span class="pre">compress()</span></code></a> returns a string that contains the compressed picture, in JFIF format.</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="jpeg.decompress"> <span class="sig-prename descclassname"><span class="pre">jpeg.</span></span><span class="sig-name descname"><span class="pre">decompress</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#jpeg.decompress" title="Permalink to this definition">¶</a></dt> <dd><p id="index-3">Data is a string containing a picture in JFIF format. It returns a tuple <code class="docutils literal notranslate"><span class="pre">(data,</span> <span class="pre">width,</span> <span class="pre">height,</span> <span class="pre">bytesperpixel)</span></code>. Again, the data is suitable to pass to <code class="xref py py-func docutils literal notranslate"><span class="pre">gl.lrectwrite()</span></code>.</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="jpeg.setoption"> <span class="sig-prename descclassname"><span class="pre">jpeg.</span></span><span class="sig-name descname"><span class="pre">setoption</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#jpeg.setoption" title="Permalink to this definition">¶</a></dt> <dd><p>Set various options. Subsequent <a class="reference internal" href="#jpeg.compress" title="jpeg.compress"><code class="xref py py-func docutils literal notranslate"><span class="pre">compress()</span></code></a> and <a class="reference internal" href="#jpeg.decompress" title="jpeg.decompress"><code class="xref py py-func docutils literal notranslate"><span class="pre">decompress()</span></code></a> calls will use these options. The following options are available:</p> <table class="docutils align-default"> <colgroup> <col style="width: 27%" /> <col style="width: 73%" /> </colgroup> <thead> <tr class="row-odd"><th class="head"><p>Option</p></th> <th class="head"><p>Effect</p></th> </tr> </thead> <tbody> <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'forcegray'</span></code></p></td> <td><p>Force output to be grayscale, even if input is RGB.</p></td> </tr> <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'quality'</span></code></p></td> <td><p>Set the quality of the compressed image to a value between <code class="docutils literal notranslate"><span class="pre">0</span></code> and <code class="docutils literal notranslate"><span class="pre">100</span></code> (default is <code class="docutils literal notranslate"><span class="pre">75</span></code>). This only affects compression.</p></td> </tr> <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'optimize'</span></code></p></td> <td><p>Perform Huffman table optimization. Takes longer, but results in smaller compressed image. This only affects compression.</p></td> </tr> <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'smooth'</span></code></p></td> <td><p>Perform inter-block smoothing on uncompressed image. Only useful for low- quality images. This only affects decompression.</p></td> </tr> </tbody> </table> </dd></dl> <div class="admonition seealso"> <p class="admonition-title">See also</p> <dl class="simple"> <dt>JPEG Still Image Data Compression Standard</dt><dd><p>The canonical reference for the JPEG image format, by Pennebaker and Mitchell.</p> </dd> <dt><a class="reference external" href="http://www.w3.org/Graphics/JPEG/itu-t81.pdf">Information Technology - Digital Compression and Coding of Continuous-tone Still Images - Requirements and Guidelines</a></dt><dd><p>The ISO standard for JPEG is also published as ITU T.81. 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