[scissors]

Thanks for the replies guys

both
colorspace='GRAYColorspace'
img.colorspace='GRAYColorspace'

compile. I added starson's code to the end of the Sun via google recipe.
Images rotate, but are still colour. :-(

I put the command in both IF statements to try and cover all bases, but nothing seems to happen.

Spoiler:

import urllib, re, mechanize
from calibre.web.feeds.recipes import BasicNewsRecipe
from calibre import __appname__
from calibre.utils.magick import Image, PixelWand

class GoogleReader(BasicNewsRecipe):
    title   = 'The Sun UK Via Google Reader2'
    
    #last updated 30/10/11 tidyied some stray classes

    cover_url = 'http://www.thesun.co.uk/img/global/new-masthead-logo.png'
     
    description = 'A Recipe for The Sun tabloid UK using the google reader recipe. You need to set up a gmail account solely for the reader, then subscribe to the suns RSS feeds at http://www.thesun.co.uk/sol/homepage...icle247949.ece'
    needs_subscription = True
    __author__ = ' Dave Asbury, davec, rollercoaster, Starson17'
    base_url = 'http://www.google.com/reader/atom/'
    oldest_article = 1
    max_articles_per_feed = 20
    get_options = '?n=%d&xt=user/-/state/com.google/read' % max_articles_per_feed
   # use_embedded_content = True

    masthead_url = 'http://www.thesun.co.uk/sol/img/global/Sun-logo.gif'
    #encoding = 'iso-8859-1'
    
    encoding = 'cp1252'
    remove_empty_feeds = True
    remove_javascript     = True
    no_stylesheets = True
    
    extra_css  = '''
	body{ text-align: justify; font-family:Arial,Helvetica,sans-serif; font-size:11px; font-size-adjust:none; font-stretch:normal; font-style:normal; font-variant:normal; font-weight:normal;}
                	 '''
    
    preprocess_regexps = [
    (re.compile(r'<div class="foot-copyright".*?</div>', re.IGNORECASE | re.DOTALL), lambda match: '')]
    
      
   
    keep_only_tags = [
                               dict(name='h1'),dict(name='h2',attrs={'class' : 'medium centered'}),
	           dict(name='div',attrs={'class' : 'text-center'}),
	           dict(name='div',attrs={'id' : 'bodyText'})
	           # dict(name='p')
	           ]
    remove_tags=[
	       #dict(name='head'),
	       dict(attrs={'class' : ['mystery-meat-link','ltbx-container','ltbx-var ltbx-hbxpn','ltbx-var ltbx-nav-loop','ltbx-var ltbx-url']}),
                           dict(name='div',attrs={'class' : 'cf'}),
	       dict(attrs={'title' : 'download flash'}),
                           dict(attrs={'style' : 'padding: 5px'})
	      
	       ]
    
   

    def get_browser(self):
        br = BasicNewsRecipe.get_browser(self)
        if self.username is not None and self.password is not None:
            request = urllib.urlencode([('Email', self.username), ('Passwd', self.password),
                                        ('service', 'reader'), ('accountType', 'HOSTED_OR_GOOGLE'), ('source', __appname__)])
            response = br.open('https://www.google.com/accounts/ClientLogin', request)
            auth = re.search('Auth=(\S*)', response.read()).group(1)
            cookies = mechanize.CookieJar()
            br = mechanize.build_opener(mechanize.HTTPCookieProcessor(cookies))
            br.addheaders = [('Authorization', 'GoogleLogin auth='+auth)]
        return br
    

    def get_feeds(self):
        feeds = []
        soup = self.index_to_soup('http://www.google.com/reader/api/0/tag/list')
        for id in soup.findAll(True, attrs={'name':['id']}):
            url = id.contents[0]
            feeds.append((re.search('/([^/]*)$', url).group(1),
                          self.base_url + urllib.quote(url.encode('utf-8')) + self.get_options))
        return feeds

    def postprocess_html(self, soup, first):
        #process all the images. assumes that the new html has the correct path
        for tag in soup.findAll(lambda tag: tag.name.lower()=='img' and tag.has_key('src')):
            iurl = tag['src']
            img = Image()
            img.open(iurl)
            width, height = img.size
            print 'img is: ', iurl, 'width is: ', width, 'height is: ', height 
            colorspace='GRAYColorspace'
            img.colorspace='GRAYColorspace'
            if img < 0:
                raise RuntimeError('Out of memory')
            pw = PixelWand()
            if( width > height ) :
                print 'Rotate image'
                colorspace='GRAYColorspace'
                img.rotate(pw, -90)
                img.colorspace='GRAYColorspace'
                img.save(iurl)
        return soup
        #auto_cleanup = True