Hi David, On Mon, Feb 21, 2005 at 11:01:53PM +1030, David Purton wrote:
> > > > I've put up a web page describing my CMYK-RGB issues and illustrating > > > > them with pictures. > > > > > > > > Anybody with hands-on CMYK experience, please have a look at > > > > > > > > http://www.tisc.de/cmyktest/ > > > > > > > > It all boils down to "how do I convert sRGB images to CMYK correctly?". > > > > > > You can try using my patch for Scribus 1.2.1. (unless you already have) > > > > I already patched my 1.2.2cvs (some two weeks old) with your patch - the > > files on the page were created with this version. > > Really? I can't reproduce your behaviour. > > This could be because there are yet more bugs in my patch ;) So let us > see if we can track down what is wrong: > > Firstly, your initial conversion to CMYK. This looks exactly as expected. [...] > Now for your scribus stuff... This is going to seem like a dumb > question, but are you *sure* that my patch is applied? I ask, becuase > the output you get both for the PDF X/3 and the CMYK pdf looks like what > I get from an unpatched Scribus 1.2.1. Doh. I will check that this evening (don't have my laptop at work). > Have a look in scribus/util.cpp. If the patch is applied, the first > function you come to in this file will be be: > > QImage LoadPict (QString fn, QString Prof, int rend, bool useEmbedded, > bool useProf, int requestType, int gsRes) I'm sure I patched Scribus (I remember patch complaining about some "HUNK xzy succeeded with offset abc"), I recompiled and did a "make install", which should have copied everything over to /usr/local/bin (which is whas "which scribus" returns). > If not, then either you have the first version of my patch without image > support or something went wrong and it wasn't correctly applied. I'm pretty sure that I used the 0.2 version of your patch. > This is what I get using your image and the ISOcoated profile you > recommended (PDF exported for printer (CMYK): > > http://marshwiggle.net/scribus/tino.pdf > > Both the sRGB and the CMYK look nearly identical for me, both on screen > and in the CMYK pdf (When viewed in acroread 5.09, other pdf viewers are > not so good, of course) Thank you very much for your time, this looks very promising now. :-) BTW: Will export from sRGB to CMYK be improved by your patch as well? It might save me the hassle of converting everything to CMYK then! Bye, Tino. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: Digital signature Url : http://nashi.altmuehlnet.de/pipermail/scribus/attachments/20050221/dc8b7eea/attachment.pgp
