mirror of
https://github.com/ciromattia/kcc
synced 2025-12-13 01:36:27 +00:00
526 lines
22 KiB
Python
Executable File
526 lines
22 KiB
Python
Executable File
# Copyright (C) 2010 Alex Yatskov
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# Copyright (C) 2011 Stanislav (proDOOMman) Kosolapov <prodoomman@gmail.com>
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# Copyright (c) 2012-2014 Ciro Mattia Gonano <ciromattia@gmail.com>
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# Copyright (c) 2013-2014 Pawel Jastrzebski <pawelj@iosphe.re>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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__version__ = '4.3.1'
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__license__ = 'ISC'
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__copyright__ = '2012-2014, Ciro Mattia Gonano <ciromattia@gmail.com>, Pawel Jastrzebski <pawelj@iosphe.re>'
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__docformat__ = 'restructuredtext en'
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import os
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from io import BytesIO
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from urllib.request import Request, urlopen
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from urllib.parse import quote
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from functools import reduce
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from PIL import Image, ImageOps, ImageStat, ImageChops
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from .shared import md5Checksum
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class ProfileData:
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def __init__(self):
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pass
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Palette4 = [
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0x00, 0x00, 0x00,
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0x55, 0x55, 0x55,
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0xaa, 0xaa, 0xaa,
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0xff, 0xff, 0xff
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]
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Palette15 = [
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0x00, 0x00, 0x00,
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0x11, 0x11, 0x11,
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0x22, 0x22, 0x22,
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0x33, 0x33, 0x33,
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0x44, 0x44, 0x44,
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0x55, 0x55, 0x55,
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0x66, 0x66, 0x66,
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0x77, 0x77, 0x77,
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0x88, 0x88, 0x88,
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0x99, 0x99, 0x99,
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0xaa, 0xaa, 0xaa,
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0xbb, 0xbb, 0xbb,
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0xcc, 0xcc, 0xcc,
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0xdd, 0xdd, 0xdd,
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0xff, 0xff, 0xff,
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]
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Palette16 = [
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0x00, 0x00, 0x00,
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0x11, 0x11, 0x11,
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0x22, 0x22, 0x22,
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0x33, 0x33, 0x33,
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0x44, 0x44, 0x44,
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0x55, 0x55, 0x55,
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0x66, 0x66, 0x66,
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0x77, 0x77, 0x77,
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0x88, 0x88, 0x88,
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0x99, 0x99, 0x99,
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0xaa, 0xaa, 0xaa,
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0xbb, 0xbb, 0xbb,
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0xcc, 0xcc, 0xcc,
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0xdd, 0xdd, 0xdd,
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0xee, 0xee, 0xee,
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0xff, 0xff, 0xff,
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]
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PalleteNull = [
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]
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Profiles = {
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'K1': ("Kindle 1", (600, 670), Palette4, 1.8, (900, 1005)),
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'K2': ("Kindle 2", (600, 670), Palette15, 1.8, (900, 1005)),
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'K345': ("Kindle", (600, 800), Palette16, 1.8, (900, 1200)),
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'KDX': ("Kindle DX/DXG", (824, 1000), Palette16, 1.8, (1236, 1500)),
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'KPW': ("Kindle Paperwhite", (758, 1024), Palette16, 1.8, (1137, 1536)),
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'KV': ("Kindle Voyage", (1072, 1448), Palette16, 1.8, (1608, 2172)),
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'KFHD': ("K. Fire HD", (800, 1280), PalleteNull, 1.0, (1200, 1920)),
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'KFHDX': ("K. Fire HDX", (1200, 1920), PalleteNull, 1.0, (1800, 2880)),
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'KFHDX8': ("K. Fire HDX 8.9", (1600, 2560), PalleteNull, 1.0, (2400, 3840)),
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'KFA': ("Kindle for Android", (0, 0), PalleteNull, 1.0, (0, 0)),
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'KoMT': ("Kobo Mini/Touch", (600, 800), Palette16, 1.8, (900, 1200)),
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'KoG': ("Kobo Glow", (768, 1024), Palette16, 1.8, (1152, 1536)),
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'KoA': ("Kobo Aura", (758, 1024), Palette16, 1.8, (1137, 1536)),
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'KoAHD': ("Kobo Aura HD", (1080, 1440), Palette16, 1.8, (1620, 2160)),
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'KoAH2O': ("Kobo Aura H2O", (1080, 1430), Palette16, 1.8, (1620, 2145)),
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'OTHER': ("Other", (0, 0), Palette16, 1.8, (0, 0)),
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}
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class ComicPage:
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def __init__(self, source, device, fill=None):
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try:
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self.profile_label, self.size, self.palette, self.gamma, self.panelviewsize = device
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except KeyError:
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raise RuntimeError('Unexpected output device %s' % device)
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self.origFileName = source
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self.filename = os.path.basename(self.origFileName)
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self.image = Image.open(source)
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self.image = self.image.convert('RGB')
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self.color = self.isImageColor()
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self.rotated = None
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self.border = None
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self.noHPV = None
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self.noVPV = None
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self.noPV = None
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self.purge = False
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self.hq = False
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if fill:
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self.fill = fill
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else:
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self.fill = None
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def saveToDir(self, targetdir, forcepng, color):
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try:
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if not self.purge:
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flags = []
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filename = os.path.join(targetdir, os.path.splitext(self.filename)[0]) + '-KCC'
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if not color and not forcepng:
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self.image = self.image.convert('L')
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if self.rotated:
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flags.append('Rotated')
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if self.hq:
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flags.append('HighQuality')
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filename += '-HQ'
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if self.noPV:
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flags.append('NoPanelView')
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else:
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if self.noHPV:
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flags.append('NoHorizontalPanelView')
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if self.noVPV:
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flags.append('NoVerticalPanelView')
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if self.border:
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flags.append("Margins-" + str(self.border[0]) + "-" + str(self.border[1]) + "-"
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+ str(self.border[2]) + "-" + str(self.border[3]))
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if forcepng:
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filename += ".png"
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self.image.save(filename, "PNG", optimize=1)
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else:
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filename += ".jpg"
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self.image.save(filename, "JPEG", optimize=1)
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return [md5Checksum(filename), flags]
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else:
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return None
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except IOError as e:
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raise RuntimeError('Cannot write image in directory %s: %s' % (targetdir, e))
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def optimizeImage(self, gamma):
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if gamma < 0.1:
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gamma = self.gamma
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if self.gamma != 1.0 and self.color:
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gamma = 1.0
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if gamma == 1.0:
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self.image = ImageOps.autocontrast(self.image)
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else:
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self.image = ImageOps.autocontrast(Image.eval(self.image, lambda a: 255 * (a / 255.) ** gamma))
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def quantizeImage(self):
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colors = len(self.palette) // 3
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if colors < 256:
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self.palette += self.palette[:3] * (256 - colors)
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palImg = Image.new('P', (1, 1))
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palImg.putpalette(self.palette)
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self.image = self.image.convert('L')
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self.image = self.image.convert('RGB')
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# Quantize is deprecated but new function call it internally anyway...
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self.image = self.image.quantize(palette=palImg)
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def calculateBorderPercent(self, x, img, isWidth):
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if isWidth:
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return int(round(float(x)/float(img.image.size[0]), 4) * 10000 * 1.5)
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else:
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return int(round(float(x)/float(img.image.size[1]), 4) * 10000 * 1.5)
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def calculateBorder(self, sourceImage, isHQ=False):
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if (isHQ and sourceImage.purge) or self.noPV:
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self.border = [0, 0, 0, 0]
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self.noPV = True
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return
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if self.fill == 'white':
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# Only already saved files can have P mode. So we can break color quantization.
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if sourceImage.image.mode == 'P':
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sourceImage.image = sourceImage.image.convert('RGB')
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border = ImageChops.invert(sourceImage.image).getbbox()
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else:
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border = sourceImage.image.getbbox()
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if border is not None:
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if isHQ:
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multiplier = 1.0
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else:
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multiplier = 1.5
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self.border = [self.calculateBorderPercent(border[0], sourceImage, True),
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self.calculateBorderPercent(border[1], sourceImage, False),
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self.calculateBorderPercent((sourceImage.image.size[0] - border[2]), sourceImage, True),
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self.calculateBorderPercent((sourceImage.image.size[1] - border[3]), sourceImage, False)]
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if int((border[2] - border[0]) * multiplier) < self.size[0]:
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self.noHPV = True
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if int((border[3] - border[1]) * multiplier) < self.size[1]:
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self.noVPV = True
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else:
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self.border = [0, 0, 0, 0]
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self.noHPV = True
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self.noVPV = True
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def resizeImage(self, upscale=False, stretch=False, bordersColor=None, qualityMode=0):
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if bordersColor:
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fill = bordersColor
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else:
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fill = self.fill
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# Set target size
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if qualityMode == 0:
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size = (self.size[0], self.size[1])
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elif qualityMode == 1 and not stretch and not upscale and self.image.size[0] <=\
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self.size[0] and self.image.size[1] <= self.size[1]:
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size = (self.size[0], self.size[1])
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elif qualityMode == 1:
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# Forcing upscale to make sure that margins will be not too big
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if not stretch:
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upscale = True
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size = (self.panelviewsize[0], self.panelviewsize[1])
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elif qualityMode == 2 and not stretch and not upscale and self.image.size[0] <=\
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self.size[0] and self.image.size[1] <= self.size[1]:
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self.purge = True
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return self.image
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else:
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self.hq = True
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size = (self.panelviewsize[0], self.panelviewsize[1])
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# If stretching is on - Resize without other considerations
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if stretch:
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if self.image.size[0] <= size[0] and self.image.size[1] <= size[1]:
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method = Image.BICUBIC
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else:
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method = Image.ANTIALIAS
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self.image = self.image.resize(size, method)
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return self.image
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# If image is smaller than target resolution and upscale is off - Just expand it by adding margins
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if self.image.size[0] <= size[0] and self.image.size[1] <= size[1] and not upscale:
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borderw = int((size[0] - self.image.size[0]) / 2)
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borderh = int((size[1] - self.image.size[1]) / 2)
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# PV is disabled when source image is smaller than device screen and upscale is off
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if self.image.size[0] <= self.size[0] and self.image.size[1] <= self.size[1]:
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self.noPV = True
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self.image = ImageOps.expand(self.image, border=(borderw, borderh), fill=fill)
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# Border can't be float so sometimes image might be 1px too small/large
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if self.image.size[0] != size[0] or self.image.size[1] != size[1]:
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self.image = ImageOps.fit(self.image, size, method=Image.BICUBIC, centering=(0.5, 0.5))
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return self.image
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# Otherwise - Upscale/Downscale
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ratioDev = float(size[0]) / float(size[1])
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if (float(self.image.size[0]) / float(self.image.size[1])) < ratioDev:
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diff = int(self.image.size[1] * ratioDev) - self.image.size[0]
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self.image = ImageOps.expand(self.image, border=(int(diff / 2), 0), fill=fill)
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elif (float(self.image.size[0]) / float(self.image.size[1])) > ratioDev:
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diff = int(self.image.size[0] / ratioDev) - self.image.size[1]
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self.image = ImageOps.expand(self.image, border=(0, int(diff / 2)), fill=fill)
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if self.image.size[0] <= size[0] and self.image.size[1] <= size[1]:
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method = Image.BICUBIC
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else:
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method = Image.ANTIALIAS
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self.image = ImageOps.fit(self.image, size, method=method, centering=(0.5, 0.5))
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return self.image
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def splitPage(self, targetdir, righttoleft=False, rotate=False):
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width, height = self.image.size
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dstwidth, dstheight = self.size
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# Only split if origin is not oriented the same as target
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if (width > height) != (dstwidth > dstheight):
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if rotate:
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self.image = self.image.rotate(90)
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self.rotated = True
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return None
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else:
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self.rotated = False
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if width > height:
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# Source is landscape, so split by the width
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leftbox = (0, 0, int(width / 2), height)
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rightbox = (int(width / 2), 0, width, height)
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else:
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# Source is portrait and target is landscape, so split by the height
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leftbox = (0, 0, width, int(height / 2))
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rightbox = (0, int(height / 2), width, height)
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filename = os.path.splitext(self.filename)
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fileone = targetdir + '/' + filename[0] + '-A' + filename[1]
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filetwo = targetdir + '/' + filename[0] + '-B' + filename[1]
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try:
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if righttoleft:
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pageone = self.image.crop(rightbox)
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pagetwo = self.image.crop(leftbox)
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else:
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pageone = self.image.crop(leftbox)
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pagetwo = self.image.crop(rightbox)
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pageone.save(fileone)
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pagetwo.save(filetwo)
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except IOError as e:
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raise RuntimeError('Cannot write image in directory %s: %s' % (targetdir, e))
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return fileone, filetwo
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else:
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self.rotated = False
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return None
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def cutPageNumber(self):
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if ImageChops.invert(self.image).getbbox() is not None:
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widthImg, heightImg = self.image.size
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delta = 2
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diff = delta
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fixedThreshold = 5
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if ImageStat.Stat(self.image).var[0] < 2 * fixedThreshold:
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return self.image
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while ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg, heightImg))).var[0] < fixedThreshold\
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and diff < heightImg:
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diff += delta
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diff -= delta
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pageNumberCut1 = diff
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if diff < delta:
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diff = delta
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oldStat = ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg, heightImg))).var[0]
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diff += delta
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while ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg, heightImg))).var[0] - oldStat > 0\
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and diff < heightImg // 4:
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oldStat = ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg, heightImg))).var[0]
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diff += delta
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diff -= delta
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pageNumberCut2 = diff
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diff += delta
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oldStat = ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg,
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heightImg - pageNumberCut2))).var[0]
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while ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg, heightImg - pageNumberCut2))).var[0]\
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< fixedThreshold + oldStat and diff < heightImg // 4:
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diff += delta
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diff -= delta
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pageNumberCut3 = diff
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delta = 5
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diff = delta
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while ImageStat.Stat(self.image.crop((0, heightImg - pageNumberCut2, diff, heightImg))).var[0]\
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< fixedThreshold and diff < widthImg:
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diff += delta
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diff -= delta
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pageNumberX1 = diff
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diff = delta
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while ImageStat.Stat(self.image.crop((widthImg - diff, heightImg - pageNumberCut2,
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widthImg, heightImg))).var[0] < fixedThreshold and diff < widthImg:
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diff += delta
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diff -= delta
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pageNumberX2 = widthImg - diff
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if pageNumberCut3 - pageNumberCut1 > 2 * delta\
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and float(pageNumberX2 - pageNumberX1) / float(pageNumberCut2 - pageNumberCut1) <= 9.0\
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and ImageStat.Stat(self.image.crop((0, heightImg - pageNumberCut3, widthImg, heightImg))).var[0]\
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/ ImageStat.Stat(self.image).var[0] < 0.1\
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and pageNumberCut3 < heightImg / 4 - delta:
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diff = pageNumberCut3
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else:
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diff = pageNumberCut1
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self.image = self.image.crop((0, 0, widthImg, heightImg - diff))
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return self.image
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def cropWhiteSpace(self):
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if ImageChops.invert(self.image).getbbox() is not None:
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widthImg, heightImg = self.image.size
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delta = 10
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diff = delta
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fixedThreshold = 0.1
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# top
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while ImageStat.Stat(self.image.crop((0, 0, widthImg, diff))).var[0] < fixedThreshold and diff < heightImg:
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diff += delta
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diff -= delta
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self.image = self.image.crop((0, diff, widthImg, heightImg))
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widthImg, heightImg = self.image.size
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diff = delta
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# left
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while ImageStat.Stat(self.image.crop((0, 0, diff, heightImg))).var[0] < fixedThreshold and diff < widthImg:
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diff += delta
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diff -= delta
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self.image = self.image.crop((diff, 0, widthImg, heightImg))
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widthImg, heightImg = self.image.size
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diff = delta
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# down
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while ImageStat.Stat(self.image.crop((0, heightImg - diff, widthImg, heightImg))).var[0] < fixedThreshold\
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and diff < heightImg:
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diff += delta
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diff -= delta
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self.image = self.image.crop((0, 0, widthImg, heightImg - diff))
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widthImg, heightImg = self.image.size
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diff = delta
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# right
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while ImageStat.Stat(self.image.crop((widthImg - diff, 0, widthImg, heightImg))).var[0] < fixedThreshold\
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and diff < widthImg:
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diff += delta
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diff -= delta
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self.image = self.image.crop((0, 0, widthImg - diff, heightImg))
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return self.image
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def getImageHistogram(self, image):
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histogram = image.histogram()
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if histogram[0] == 0:
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return -1
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elif histogram[255] == 0:
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return 1
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else:
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return 0
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def getImageFill(self):
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bw = self.image.convert('L').point(lambda x: 0 if x < 128 else 255, '1')
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imageBoxA = bw.getbbox()
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imageBoxB = ImageChops.invert(bw).getbbox()
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if imageBoxA is None or imageBoxB is None:
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surfaceB, surfaceW = 0, 0
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else:
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surfaceB = (imageBoxA[2] - imageBoxA[0]) * (imageBoxA[3] - imageBoxA[1])
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surfaceW = (imageBoxB[2] - imageBoxB[0]) * (imageBoxB[3] - imageBoxB[1])
|
|
if surfaceW < surfaceB:
|
|
self.fill = 'white'
|
|
elif surfaceW > surfaceB:
|
|
self.fill = 'black'
|
|
else:
|
|
fill = 0
|
|
startY = 0
|
|
while startY < bw.size[1]:
|
|
if startY + 5 > bw.size[1]:
|
|
startY = bw.size[1] - 5
|
|
fill += self.getImageHistogram(bw.crop((0, startY, bw.size[0], startY+5)))
|
|
startY += 5
|
|
startX = 0
|
|
while startX < bw.size[0]:
|
|
if startX + 5 > bw.size[0]:
|
|
startX = bw.size[0] - 5
|
|
fill += self.getImageHistogram(bw.crop((startX, 0, startX+5, bw.size[1])))
|
|
startX += 5
|
|
if fill > 0:
|
|
self.fill = 'black'
|
|
else:
|
|
self.fill = 'white'
|
|
|
|
def isImageColor(self):
|
|
v = ImageStat.Stat(self.image).var
|
|
isMonochromatic = reduce(lambda x, y: x and y < 0.005, v, True)
|
|
if isMonochromatic:
|
|
# Monochromatic
|
|
return False
|
|
else:
|
|
if len(v) == 3:
|
|
maxmin = abs(max(v) - min(v))
|
|
if maxmin > 1000:
|
|
# Color
|
|
return True
|
|
elif maxmin > 100:
|
|
# Probably color
|
|
return True
|
|
else:
|
|
# Grayscale
|
|
return False
|
|
elif len(v) == 1:
|
|
# Black and white
|
|
return False
|
|
else:
|
|
# Detection failed
|
|
return False
|
|
|
|
|
|
class Cover:
|
|
def __init__(self, source, target, opt, tomeNumber):
|
|
self.options = opt
|
|
self.source = source
|
|
self.target = target
|
|
if tomeNumber == 0:
|
|
self.tomeNumber = 1
|
|
else:
|
|
self.tomeNumber = tomeNumber
|
|
if self.tomeNumber in self.options.remoteCovers:
|
|
try:
|
|
source = urlopen(Request(quote(self.options.remoteCovers[self.tomeNumber]).replace('%3A', ':', 1),
|
|
headers={'User-Agent': 'KindleComicConverter/' + __version__})).read()
|
|
self.image = Image.open(BytesIO(source))
|
|
self.processExternal()
|
|
except Exception:
|
|
self.image = Image.open(source)
|
|
self.processInternal()
|
|
else:
|
|
self.image = Image.open(source)
|
|
self.processInternal()
|
|
|
|
def processInternal(self):
|
|
self.image = self.image.convert('RGB')
|
|
self.image = self.trim()
|
|
self.save()
|
|
|
|
def processExternal(self):
|
|
self.image = self.image.convert('RGB')
|
|
self.image.thumbnail(self.options.profileData[1], Image.ANTIALIAS)
|
|
self.save(True)
|
|
|
|
def trim(self):
|
|
bg = Image.new(self.image.mode, self.image.size, self.image.getpixel((0, 0)))
|
|
diff = ImageChops.difference(self.image, bg)
|
|
diff = ImageChops.add(diff, diff, 2.0, -100)
|
|
bbox = diff.getbbox()
|
|
if bbox:
|
|
return self.image.crop(bbox)
|
|
else:
|
|
return self.image
|
|
|
|
def save(self, external=False):
|
|
if external:
|
|
source = self.options.remoteCovers[self.tomeNumber].split('/')[-1]
|
|
else:
|
|
source = self.source
|
|
try:
|
|
if os.path.splitext(source)[1].lower() == '.png':
|
|
self.image.save(self.target, "PNG", optimize=1)
|
|
else:
|
|
self.image.save(self.target, "JPEG", optimize=1)
|
|
except IOError:
|
|
raise RuntimeError('Failed to save cover')
|