예제 #1
0
def extract_raster_image(wmf_data):
    try:
        wmf, wmf_err = plugins['wmf']
    except KeyError:
        raise Unavailable('libwmf not available on this platform')
    if wmf_err:
        raise Unavailable(wmf_err)

    if iswindows:
        import sys, os
        appdir = sys.app_dir
        if isinstance(appdir, unicode):
            appdir = appdir.encode(filesystem_encoding)
        fdir = os.path.join(appdir, 'wmffonts')
        wmf.set_font_dir(fdir)

    data = ''

    with TemporaryDirectory('wmf2png') as tdir:
        with CurrentDir(tdir):
            wmf.render(wmf_data)

            images = list(sorted(glob.glob('*.png')))
            if not images:
                raise NoRaster('No raster images in WMF')
            data = open(images[0], 'rb').read()

    im = Image()
    im.load(data)
    pw = PixelWand()
    pw.color = '#ffffff'
    im.rotate(pw, 180)

    return im.export('png')
예제 #2
0
def extract_raster_image(wmf_data):
    try:
        wmf, wmf_err = plugins['wmf']
    except KeyError:
        raise Unavailable('libwmf not available on this platform')
    if wmf_err:
        raise Unavailable(wmf_err)

    if iswindows:
        import sys, os
        appdir = sys.app_dir
        if isinstance(appdir, unicode):
            appdir = appdir.encode(filesystem_encoding)
        fdir = os.path.join(appdir, 'wmffonts')
        wmf.set_font_dir(fdir)

    data = ''

    with TemporaryDirectory('wmf2png') as tdir:
        with CurrentDir(tdir):
            wmf.render(wmf_data)

            images = list(sorted(glob.glob('*.png')))
            if not images:
                raise NoRaster('No raster images in WMF')
            data = open(images[0], 'rb').read()

    im = Image()
    im.load(data)
    pw = PixelWand()
    pw.color = '#ffffff'
    im.rotate(pw, 180)

    return im.export('png')
예제 #3
0
    def process_pages(self):
        from calibre.utils.magick import PixelWand
        for i, wand in enumerate(self.pages):
            pw = PixelWand()
            pw.color = '#ffffff'

            wand.set_border_color(pw)
            if self.rotate:
                wand.rotate(pw, -90)

            if not self.opts.disable_trim:
                wand.trim(25 * 65535 / 100)

            wand.set_page(0, 0, 0,
                          0)  # Clear page after trim, like a "+repage"
            # Do the Photoshop "Auto Levels" equivalent
            if not self.opts.dont_normalize:
                wand.normalize()
            sizex, sizey = wand.size

            SCRWIDTH, SCRHEIGHT = self.opts.output_profile.comic_screen_size

            try:
                if self.opts.comic_image_size:
                    SCRWIDTH, SCRHEIGHT = map(int, [
                        x.strip()
                        for x in self.opts.comic_image_size.split('x')
                    ])
            except:
                pass  # Ignore

            if self.opts.keep_aspect_ratio:
                # Preserve the aspect ratio by adding border
                aspect = float(sizex) / float(sizey)
                if aspect <= (float(SCRWIDTH) / float(SCRHEIGHT)):
                    newsizey = SCRHEIGHT
                    newsizex = int(newsizey * aspect)
                    deltax = (SCRWIDTH - newsizex) / 2
                    deltay = 0
                else:
                    newsizex = SCRWIDTH
                    newsizey = int(newsizex / aspect)
                    deltax = 0
                    deltay = (SCRHEIGHT - newsizey) / 2
                if newsizex < MAX_SCREEN_SIZE and newsizey < MAX_SCREEN_SIZE:
                    # Too large and resizing fails, so better
                    # to leave it as original size
                    wand.size = (newsizex, newsizey)
                    wand.set_border_color(pw)
                    wand.add_border(pw, deltax, deltay)
            elif self.opts.wide:
                # Keep aspect and Use device height as scaled image width so landscape mode is clean
                aspect = float(sizex) / float(sizey)
                screen_aspect = float(SCRWIDTH) / float(SCRHEIGHT)
                # Get dimensions of the landscape mode screen
                # Add 25px back to height for the battery bar.
                wscreenx = SCRHEIGHT + 25
                wscreeny = int(wscreenx / screen_aspect)
                if aspect <= screen_aspect:
                    newsizey = wscreeny
                    newsizex = int(newsizey * aspect)
                    deltax = (wscreenx - newsizex) / 2
                    deltay = 0
                else:
                    newsizex = wscreenx
                    newsizey = int(newsizex / aspect)
                    deltax = 0
                    deltay = (wscreeny - newsizey) / 2
                if newsizex < MAX_SCREEN_SIZE and newsizey < MAX_SCREEN_SIZE:
                    # Too large and resizing fails, so better
                    # to leave it as original size
                    wand.size = (newsizex, newsizey)
                    wand.set_border_color(pw)
                    wand.add_border(pw, deltax, deltay)
            else:
                if SCRWIDTH < MAX_SCREEN_SIZE and SCRHEIGHT < MAX_SCREEN_SIZE:
                    wand.size = (SCRWIDTH, SCRHEIGHT)

            if not self.opts.dont_sharpen:
                wand.sharpen(0.0, 1.0)

            if not self.opts.dont_grayscale:
                wand.type = 'GrayscaleType'

            if self.opts.despeckle:
                wand.despeckle()

            wand.quantize(self.opts.colors)
            dest = '%d_%d.%s' % (self.num, i, self.opts.output_format)
            dest = os.path.join(self.dest, dest)
            if dest.lower().endswith('.png'):
                dest += '8'
            wand.save(dest)
            if dest.endswith('8'):
                dest = dest[:-1]
                os.rename(dest + '8', dest)
            self.append(dest)
예제 #4
0
파일: input.py 프로젝트: 089git/calibre
    def process_pages(self):
        from calibre.utils.magick import PixelWand
        for i, wand in enumerate(self.pages):
            pw = PixelWand()
            pw.color = '#ffffff'

            wand.set_border_color(pw)
            if self.rotate:
                wand.rotate(pw, -90)

            if not self.opts.disable_trim:
                wand.trim(25*65535/100)

            wand.set_page(0, 0, 0, 0)  # Clear page after trim, like a "+repage"
            # Do the Photoshop "Auto Levels" equivalent
            if not self.opts.dont_normalize:
                wand.normalize()
            sizex, sizey = wand.size

            SCRWIDTH, SCRHEIGHT = self.opts.output_profile.comic_screen_size

            try:
                if self.opts.comic_image_size:
                    SCRWIDTH, SCRHEIGHT = map(int, [x.strip() for x in
                        self.opts.comic_image_size.split('x')])
            except:
                pass  # Ignore

            if self.opts.keep_aspect_ratio:
                # Preserve the aspect ratio by adding border
                aspect = float(sizex) / float(sizey)
                if aspect <= (float(SCRWIDTH) / float(SCRHEIGHT)):
                    newsizey = SCRHEIGHT
                    newsizex = int(newsizey * aspect)
                    deltax = (SCRWIDTH - newsizex) / 2
                    deltay = 0
                else:
                    newsizex = SCRWIDTH
                    newsizey = int(newsizex / aspect)
                    deltax = 0
                    deltay = (SCRHEIGHT - newsizey) / 2
                if newsizex < MAX_SCREEN_SIZE and newsizey < MAX_SCREEN_SIZE:
                    # Too large and resizing fails, so better
                    # to leave it as original size
                    wand.size = (newsizex, newsizey)
                    wand.set_border_color(pw)
                    wand.add_border(pw, deltax, deltay)
            elif self.opts.wide:
                # Keep aspect and Use device height as scaled image width so landscape mode is clean
                aspect = float(sizex) / float(sizey)
                screen_aspect = float(SCRWIDTH) / float(SCRHEIGHT)
                # Get dimensions of the landscape mode screen
                # Add 25px back to height for the battery bar.
                wscreenx = SCRHEIGHT + 25
                wscreeny = int(wscreenx / screen_aspect)
                if aspect <= screen_aspect:
                    newsizey = wscreeny
                    newsizex = int(newsizey * aspect)
                    deltax = (wscreenx - newsizex) / 2
                    deltay = 0
                else:
                    newsizex = wscreenx
                    newsizey = int(newsizex / aspect)
                    deltax = 0
                    deltay = (wscreeny - newsizey) / 2
                if newsizex < MAX_SCREEN_SIZE and newsizey < MAX_SCREEN_SIZE:
                    # Too large and resizing fails, so better
                    # to leave it as original size
                    wand.size = (newsizex, newsizey)
                    wand.set_border_color(pw)
                    wand.add_border(pw, deltax, deltay)
            else:
                if SCRWIDTH < MAX_SCREEN_SIZE and SCRHEIGHT < MAX_SCREEN_SIZE:
                    wand.size = (SCRWIDTH, SCRHEIGHT)

            if not self.opts.dont_sharpen:
                wand.sharpen(0.0, 1.0)

            if not self.opts.dont_grayscale:
                wand.type = 'GrayscaleType'

            if self.opts.despeckle:
                wand.despeckle()

            wand.quantize(self.opts.colors)
            dest = '%d_%d.%s'%(self.num, i, self.opts.output_format)
            dest = os.path.join(self.dest, dest)
            if dest.lower().endswith('.png'):
                dest += '8'
            wand.save(dest)
            if dest.endswith('8'):
                dest = dest[:-1]
                os.rename(dest+'8', dest)
            self.append(dest)