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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2024-07-04 11:33
BdfFontFile.py	3.29 KB	-rw-r--r--	2018-04-12 21:15
BlpImagePlugin.py	14.26 KB	-rw-r--r--	2024-07-03 09:03
BmpImagePlugin.py	12.83 KB	-rw-r--r--	2018-04-12 21:15
BufrStubImagePlugin.py	1.48 KB	-rw-r--r--	2018-04-12 21:15
ContainerIO.py	2.63 KB	-rw-r--r--	2018-04-12 21:15
CurImagePlugin.py	2.02 KB	-rw-r--r--	2018-04-12 21:15
DcxImagePlugin.py	1.98 KB	-rw-r--r--	2018-04-12 21:15
DdsImagePlugin.py	4.88 KB	-rw-r--r--	2018-04-12 21:15
EpsImagePlugin.py	12.59 KB	-rw-r--r--	2024-07-03 09:03
ExifTags.py	8.63 KB	-rw-r--r--	2018-04-12 21:15
FitsStubImagePlugin.py	1.58 KB	-rw-r--r--	2018-04-12 21:15
FliImagePlugin.py	4 KB	-rw-r--r--	2018-04-12 21:15
FontFile.py	2.77 KB	-rw-r--r--	2018-04-12 21:15
FpxImagePlugin.py	6.23 KB	-rw-r--r--	2018-04-12 21:15
FtexImagePlugin.py	3.19 KB	-rw-r--r--	2018-04-12 21:15
GbrImagePlugin.py	2.66 KB	-rw-r--r--	2018-04-12 21:15
GdImageFile.py	2.15 KB	-rw-r--r--	2018-04-12 21:15
GifImagePlugin.py	26.11 KB	-rw-r--r--	2024-07-03 09:03
GimpGradientFile.py	3.27 KB	-rw-r--r--	2018-04-12 21:15
GimpPaletteFile.py	1.31 KB	-rw-r--r--	2018-04-12 21:15
GribStubImagePlugin.py	1.5 KB	-rw-r--r--	2018-04-12 21:15
Hdf5StubImagePlugin.py	1.48 KB	-rw-r--r--	2018-04-12 21:15
IcnsImagePlugin.py	10.82 KB	-rw-r--r--	2024-07-03 09:03
IcoImagePlugin.py	9.22 KB	-rw-r--r--	2024-07-03 09:03
ImImagePlugin.py	9.92 KB	-rw-r--r--	2018-04-12 21:15
Image.py	93.16 KB	-rw-r--r--	2018-04-12 21:15
ImageChops.py	6.04 KB	-rw-r--r--	2018-04-12 21:15
ImageCms.py	35.76 KB	-rw-r--r--	2018-04-12 21:15
ImageColor.py	8.05 KB	-rw-r--r--	2018-04-12 21:15
ImageDraw.py	13.32 KB	-rw-r--r--	2018-04-12 21:15
ImageDraw2.py	3.15 KB	-rw-r--r--	2018-04-12 21:15
ImageEnhance.py	3.12 KB	-rw-r--r--	2018-04-12 21:15
ImageFile.py	20.27 KB	-rw-r--r--	2024-07-03 09:03
ImageFilter.py	7.23 KB	-rw-r--r--	2018-04-12 21:15
ImageFont.py	20.66 KB	-rw-r--r--	2024-07-03 09:03
ImageGrab.py	2.1 KB	-rw-r--r--	2018-04-12 21:15
ImageMath.py	7.83 KB	-rw-r--r--	2024-07-03 09:03
ImageMode.py	1.52 KB	-rw-r--r--	2018-04-12 21:15
ImageMorph.py	8.12 KB	-rw-r--r--	2018-04-12 21:15
ImageOps.py	15.73 KB	-rw-r--r--	2018-04-12 21:15
ImagePalette.py	6.17 KB	-rw-r--r--	2018-04-12 21:15
ImagePath.py	1.26 KB	-rw-r--r--	2018-04-12 21:15
ImageSequence.py	1.21 KB	-rw-r--r--	2018-04-12 21:15
ImageShow.py	5.14 KB	-rw-r--r--	2018-04-12 21:15
ImageStat.py	3.76 KB	-rw-r--r--	2018-04-12 21:15
ImageTransform.py	2.74 KB	-rw-r--r--	2018-04-12 21:15
ImageWin.py	7 KB	-rw-r--r--	2018-04-12 21:15
ImtImagePlugin.py	2.19 KB	-rw-r--r--	2018-04-12 21:15
IptcImagePlugin.py	6.64 KB	-rw-r--r--	2018-04-12 21:15
Jpeg2KImagePlugin.py	7.55 KB	-rw-r--r--	2018-04-12 21:15
JpegImagePlugin.py	26.98 KB	-rw-r--r--	2018-04-12 21:15
JpegPresets.py	12.11 KB	-rw-r--r--	2018-04-12 21:15
McIdasImagePlugin.py	1.73 KB	-rw-r--r--	2018-04-12 21:15
MicImagePlugin.py	2.4 KB	-rw-r--r--	2018-04-12 21:15
MpegImagePlugin.py	1.79 KB	-rw-r--r--	2018-04-12 21:15
MpoImagePlugin.py	2.91 KB	-rw-r--r--	2018-04-12 21:15
MspImagePlugin.py	5.39 KB	-rw-r--r--	2018-04-12 21:15
OleFileIO.py	152 B	-rw-r--r--	2018-04-12 21:15
PSDraw.py	6.69 KB	-rw-r--r--	2018-04-12 21:15
PaletteFile.py	1.08 KB	-rw-r--r--	2018-04-12 21:15
PalmImagePlugin.py	8.94 KB	-rw-r--r--	2018-04-12 21:15
PcdImagePlugin.py	1.48 KB	-rw-r--r--	2018-04-12 21:15
PcfFontFile.py	5.99 KB	-rw-r--r--	2018-04-12 21:15
PcxImagePlugin.py	5.29 KB	-rw-r--r--	2024-07-03 09:03
PdfImagePlugin.py	7.16 KB	-rw-r--r--	2018-04-12 21:15
PdfParser.py	32.64 KB	-rw-r--r--	2024-07-03 09:03
PixarImagePlugin.py	1.63 KB	-rw-r--r--	2018-04-12 21:15
PngImagePlugin.py	25.09 KB	-rw-r--r--	2018-04-12 21:15
PpmImagePlugin.py	4.11 KB	-rw-r--r--	2018-04-12 21:15
PsdImagePlugin.py	7.76 KB	-rw-r--r--	2024-07-03 09:03
PyAccess.py	8.61 KB	-rw-r--r--	2018-04-12 21:15
SgiImagePlugin.py	5.97 KB	-rw-r--r--	2018-04-12 21:15
SunImagePlugin.py	4.22 KB	-rw-r--r--	2018-04-12 21:15
TarIO.py	1.21 KB	-rw-r--r--	2018-04-12 21:15
TgaImagePlugin.py	4.88 KB	-rw-r--r--	2018-04-12 21:15
TiffImagePlugin.py	63.49 KB	-rw-r--r--	2024-07-03 09:03
TiffTags.py	14.1 KB	-rw-r--r--	2018-04-12 21:15
WalImageFile.py	5.43 KB	-rw-r--r--	2018-04-12 21:15
WebPImagePlugin.py	9.45 KB	-rw-r--r--	2018-04-12 21:15
WmfImagePlugin.py	4.15 KB	-rw-r--r--	2018-04-12 21:15
XVThumbImagePlugin.py	1.91 KB	-rw-r--r--	2018-04-12 21:15
XbmImagePlugin.py	2.45 KB	-rw-r--r--	2018-04-12 21:15
XpmImagePlugin.py	3.03 KB	-rw-r--r--	2018-04-12 21:15
__init__.py	1.66 KB	-rw-r--r--	2018-04-12 21:15
_binary.py	1.75 KB	-rw-r--r--	2018-04-12 21:15
_imaging.cpython-36m-x86_64-linux-gnu.so	391.95 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingcms.cpython-36m-x86_64-linux-gnu.so	35.89 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingft.cpython-36m-x86_64-linux-gnu.so	30.39 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingmath.cpython-36m-x86_64-linux-gnu.so	20.16 KB	-rwxr-xr-x	2024-07-03 09:03
_imagingmorph.cpython-36m-x86_64-linux-gnu.so	11.84 KB	-rwxr-xr-x	2024-07-03 09:03
_tkinter_finder.py	702 B	-rw-r--r--	2018-04-12 21:15
_util.py	553 B	-rw-r--r--	2018-04-12 21:15
_webp.cpython-36m-x86_64-linux-gnu.so	25.16 KB	-rwxr-xr-x	2024-07-03 09:03
features.py	1.83 KB	-rw-r--r--	2018-04-12 21:15
version.py	50 B	-rw-r--r--	2018-04-12 21:15

Rename

#
# The Python Imaging Library.
# $Id$
#
# global image statistics
#
# History:
# 1996-04-05 fl   Created
# 1997-05-21 fl   Added mask; added rms, var, stddev attributes
# 1997-08-05 fl   Added median
# 1998-07-05 hk   Fixed integer overflow error
#
# Notes:
# This class shows how to implement delayed evaluation of attributes.
# To get a certain value, simply access the corresponding attribute.
# The __getattr__ dispatcher takes care of the rest.
#
# Copyright (c) Secret Labs AB 1997.
# Copyright (c) Fredrik Lundh 1996-97.
#
# See the README file for information on usage and redistribution.
#

import math
import operator
import functools

class Stat(object):

def __init__(self, image_or_list, mask=None):
        try:
            if mask:
                self.h = image_or_list.histogram(mask)
            else:
                self.h = image_or_list.histogram()
        except AttributeError:
            self.h = image_or_list  # assume it to be a histogram list
        if not isinstance(self.h, list):
            raise TypeError("first argument must be image or list")
        self.bands = list(range(len(self.h) // 256))

def __getattr__(self, id):
        "Calculate missing attribute"
        if id[:4] == "_get":
            raise AttributeError(id)
        # calculate missing attribute
        v = getattr(self, "_get" + id)()
        setattr(self, id, v)
        return v

def _getextrema(self):
        "Get min/max values for each band in the image"

def minmax(histogram):
            n = 255
            x = 0
            for i in range(256):
                if histogram[i]:
                    n = min(n, i)
                    x = max(x, i)
            return n, x  # returns (255, 0) if there's no data in the histogram

v = []
        for i in range(0, len(self.h), 256):
            v.append(minmax(self.h[i:]))
        return v

def _getcount(self):
        "Get total number of pixels in each layer"

v = []
        for i in range(0, len(self.h), 256):
            v.append(functools.reduce(operator.add, self.h[i:i+256]))
        return v

def _getsum(self):
        "Get sum of all pixels in each layer"

v = []
        for i in range(0, len(self.h), 256):
            layerSum = 0.0
            for j in range(256):
                layerSum += j * self.h[i + j]
            v.append(layerSum)
        return v

def _getsum2(self):
        "Get squared sum of all pixels in each layer"

v = []
        for i in range(0, len(self.h), 256):
            sum2 = 0.0
            for j in range(256):
                sum2 += (j ** 2) * float(self.h[i + j])
            v.append(sum2)
        return v

def _getmean(self):
        "Get average pixel level for each layer"

v = []
        for i in self.bands:
            v.append(self.sum[i] / self.count[i])
        return v

def _getmedian(self):
        "Get median pixel level for each layer"

v = []
        for i in self.bands:
            s = 0
            l = self.count[i]//2
            b = i * 256
            for j in range(256):
                s = s + self.h[b+j]
                if s > l:
                    break
            v.append(j)
        return v

def _getrms(self):
        "Get RMS for each layer"

v = []
        for i in self.bands:
            v.append(math.sqrt(self.sum2[i] / self.count[i]))
        return v

def _getvar(self):
        "Get variance for each layer"

v = []
        for i in self.bands:
            n = self.count[i]
            v.append((self.sum2[i]-(self.sum[i]**2.0)/n)/n)
        return v

def _getstddev(self):
        "Get standard deviation for each layer"

v = []
        for i in self.bands:
            v.append(math.sqrt(self.var[i]))
        return v

Global = Stat  # compatibility