I've produced the attached TIFF image with FOP Trunk (pretty much equivalent to FOP 1.0) with practically the same configuration as you, except for the <transparent-page-background>true</transparent-page-background> which you should remove.
If by poor quality you mean the bi-level rendering by using a lightness threshold, that could be improved by rendering the bitmap internally in gray scales and then rasterize it using Bayer or error-diffusion rastering. We have code for that but it's not tied into the bitmap renderers and it would also cost a lot of performance and allow much poorer compression levels. Maybe you should post an image to demonstrate what you consider poor quality. On 05.10.2010 00:25:27 paulnnosh wrote: > > To add some additional information. I have now downgraded to 0.95 and while > the black pages have gone the image quality is still very bad. I noticed > that the log output states: > > 04-Oct-2010 21:30:56 org.apache.fop.render.java2d.Java2DRenderer > getPageImage > INFO: Rendering Page 1 (pageWidth 595, pageHeight 842) > > Which if I'm not mistaken is only 72dpi for an A4 page. I have set the > target-resolution to 200dpi so I don't understand why the image is so bad. > > Thanks again... > > > paulnnosh wrote: > > > > Hi, > > > > I'm using FOP 1.0 with Java 1.4 (I know, I know! I'm stuck with it for > > now). > > > > I'm using FOP to convert XML into a CCITT T.6 compressed TIFF. > > > > With the config file below the output TIFF files are just coloured black. > > > > I can remove the transparent-page-background tag and that produces an > > image but the quality is very very poor. > > > > I have Imageio version 1.1 on my classpath. > > > > My config is as follows: > > > > <fop version="1.0"> > > <source-resolution>72</source-resolution> > > <target-resolution>200</target-resolution> > > <renderers> > > <renderer mime="image/tiff"> > > <transparent-page-background>true</transparent-page-background> > > <compression>CCITT T.6</compression> > > </renderer> > > </renderers> > > </fop> > > > > Can anyone shed any light on what the problem is here please? Any help > > much appreciated. > > > > Many Thanks > > > > -- > View this message in context: > http://old.nabble.com/FOP-1.0-TIFF-Image-Black-Pages-and-Poor-Image-Quality-tp29881437p29882800.html > Sent from the FOP - Users mailing list archive at Nabble.com. > Jeremias Maerki
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