mirror of
https://github.com/ciromattia/kcc
synced 2026-01-04 12:29:28 +00:00
343 lines
14 KiB
Python
Executable File
343 lines
14 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) 2012-2013 Ciro Mattia Gonano <ciromattia@gmail.com>
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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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__license__ = 'ISC'
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__copyright__ = '2012-2013, Ciro Mattia Gonano <ciromattia@gmail.com>, Pawel Jastrzebski <pawelj@vulturis.eu>'
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__docformat__ = 'restructuredtext en'
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import os
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try:
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# noinspection PyUnresolvedReferences
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from PIL import Image, ImageOps, ImageStat, ImageChops
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except ImportError:
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print "ERROR: Pillow is not installed!"
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exit(1)
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class ImageFlags:
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Orient = 1 << 0
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Resize = 1 << 1
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Frame = 1 << 2
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Quantize = 1 << 3
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Stretch = 1 << 4
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class ProfileData:
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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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Profiles = {
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'K1': ("Kindle 1", (600, 800), Palette4, 1.8, (900, 1200)),
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'K2': ("Kindle 2", (600, 800), Palette15, 1.8, (900, 1200)),
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'K3': ("Kindle Keyboard", (600, 800), Palette16, 1.8, (900, 1200)),
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'K4NT': ("Kindle Non-Touch", (600, 800), Palette16, 1.8, (900, 1200)),
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'K4T': ("Kindle Touch", (600, 800), Palette16, 1.8, (900, 1200)),
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'KHD': ("Kindle Paperwhite", (758, 1024), Palette16, 1.8, (1137, 1536)),
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'KDX': ("Kindle DX", (824, 1200), Palette15, 1.8, (1236, 1800)),
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'KDXG': ("Kindle DXG", (824, 1200), Palette16, 1.8, (1236, 1800)),
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'KF': ("Kindle Fire", (600, 1024), Palette16, 1.0, (900, 1536)),
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'KFHD': ("Kindle Fire HD 7\"", (800, 1280), Palette16, 1.0, (1200, 1920)),
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'KFHD8': ("Kindle Fire HD 8.9\"", (1200, 1920), Palette16, 1.0, (1800, 2880))
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}
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ProfileLabels = {
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"Kindle 1": 'K1',
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"Kindle 2": 'K2',
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"Kindle 3/Keyboard": 'K3',
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"Kindle 4/Non-Touch": 'K4NT',
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"Kindle 4/Touch": 'K4T',
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"Kindle Paperwhite": 'KHD',
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"Kindle DX": 'KDX',
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"Kindle DXG": 'KDXG',
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"Kindle Fire": 'KF',
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"Kindle Fire HD 7\"": 'KFHD',
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"Kindle Fire HD 8.9\"": 'KFHD8'
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}
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class ComicPage:
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def __init__(self, source, device):
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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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# Detect corrupted files - Phase 2
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try:
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self.origFileName = source
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self.image = Image.open(source)
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except IOError:
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raise RuntimeError('Cannot read image file %s' % source)
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# Detect corrupted files - Phase 3
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try:
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self.image.verify()
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except:
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raise RuntimeError('Image file %s is corrupted' % source)
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self.image = Image.open(source)
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self.image = self.image.convert('RGB')
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def saveToDir(self, targetdir, forcepng, color, sufix=None):
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filename = os.path.basename(self.origFileName)
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try:
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if not color:
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self.image = self.image.convert('L') # convert to grayscale
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# Sufix is used to recognise which files need horizontal Panel View.
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if sufix == "R":
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sufix = "_rotated"
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else:
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sufix = ""
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os.remove(os.path.join(targetdir, filename))
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if forcepng:
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self.image.save(os.path.join(targetdir, os.path.splitext(filename)[0] + sufix + ".png"), "PNG")
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else:
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self.image.save(os.path.join(targetdir, os.path.splitext(filename)[0] + sufix + ".jpg"), "JPEG")
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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 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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self.image = self.image.convert('L') # convert to grayscale
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self.image = self.image.convert("RGB") # convert back to RGB
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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.quantize(palette=palImg)
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def resizeImage(self, upscale=False, stretch=False, black_borders=False, isSplit=False, toRight=False,
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landscapeMode=False, noPanelViewHQ=False):
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method = Image.ANTIALIAS
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if black_borders:
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fill = 'black'
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else:
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fill = 'white'
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if noPanelViewHQ:
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size = (self.size[0], self.size[1])
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else:
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size = (self.panelviewsize[0], self.panelviewsize[1])
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if isSplit and landscapeMode:
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upscale = True
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if self.image.size[0] <= self.size[0] and self.image.size[1] <= self.size[1]:
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if not upscale:
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borderw = (self.size[0] - self.image.size[0]) / 2
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borderh = (self.size[1] - self.image.size[1]) / 2
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self.image = ImageOps.expand(self.image, border=(borderw, borderh), fill=fill)
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return self.image
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else:
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method = Image.BILINEAR
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if stretch: # if stretching call directly resize() without other considerations.
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self.image = self.image.resize(size, method)
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return self.image
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ratioDev = float(self.size[0]) / float(self.size[1])
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if (float(self.image.size[0]) / float(self.image.size[1])) < ratioDev:
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if isSplit and landscapeMode:
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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=(diff / 2, 0), fill=fill)
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tempImg = Image.new(self.image.mode, (self.image.size[0] + diff, self.image.size[1]), fill)
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if toRight:
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tempImg.paste(self.image, (diff, 0))
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else:
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tempImg.paste(self.image, (0, 0))
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self.image = tempImg
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else:
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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=(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, diff / 2), fill=fill)
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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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#print "Image is %d x %d" % (width,height)
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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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return "R"
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else:
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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, width / 2, height)
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rightbox = (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, height / 2)
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rightbox = (0, height / 2, width, height)
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filename = os.path.splitext(os.path.basename(self.origFileName))
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fileone = targetdir + '/' + filename[0] + '-kcca' + filename[1]
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filetwo = targetdir + '/' + filename[0] + '-kccb' + 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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os.remove(self.origFileName)
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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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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, threshold):
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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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# top
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while ImageStat.Stat(self.image.crop((0, 0, widthImg, diff))).var[0] < threshold and diff < heightImg:
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diff += delta
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diff -= delta
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# print "Top crop: %s"%diff
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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] < threshold and diff < widthImg:
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diff += delta
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diff -= delta
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# print "Left crop: %s"%diff
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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] < threshold\
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and diff < heightImg:
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diff += delta
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diff -= delta
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# print "Down crop: %s"%diff
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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] < threshold\
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and diff < widthImg:
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diff += delta
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diff -= delta
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# print "Right crop: %s"%diff
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self.image = self.image.crop((0, 0, widthImg - diff, heightImg))
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# print "New size: %sx%s"%(self.image.size[0],self.image.size[1])
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return self.image |