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From Luis Bernardo <lmpmberna...@gmail.com>
Subject Re: Tiff image - color distortion
Date Wed, 29 Jan 2014 09:34:18 GMT
TIFF can use JPEG compression, so it is likely that the issue is with JPEG
image handling even though it is a TIFF. But TwelveMonkeys also has an
imageio-tiff component so you can try both. Get the source from github,
build it (mvn clean install, I think) and place the needed jars in the FOP
lib directory. The fop.xconf does not need to be modified.

On Wed, Jan 29, 2014 at 7:12 AM, Valentina Cupac <valentina.cupac@tp.rs>wrote:

> That is what I would like to do ---- to preserving the original image.
> Just to clarify, you mentioned JDK JPEG image handling, is that what needs
> to be used for Tiff image handling (in my report I have just Tiff images),
> and if so, do any settings need to modified in the fop.xconf file?
> ---------- Forwarded message ----------
> From: Luis Bernardo <lmpmbernardo@gmail.com>
> Date: 2014-01-29
> Subject: Re: Tiff image - color distortion
> To: fop-users@xmlgraphics.apache.org
> Two questions about CMYK on the same day!
> The JDK JPEG image handling functions cannot handle CMYK. If the images
> include a color profile then FOP can convert the images to RGB. To get FOP
> generate a PDF with images that preserve the CMYK colors you need to use a
> ImageIO library like TwelveMonkeys. Get it, compile it and place the JPEG
> related jar in the FOP lib directory (note that you will also need to add
> some of the core jars).
> On 1/28/14, 5:12 PM, Valentina wrote:
>> Hi I am including Tiff image in Pdf output.
>> The problem is that it is not rendering the image correctly. For example,
>> the original Tiff image has much stronger contrast (i.e. some very dark
>> sections, some very light sections), whilst the pdf output image appears
>> more greyish and noisy.
>> Is this a known issue?
>> Also I looked here:
>> http://xmlgraphics.apache.org/fop/1.1/graphics.html#tiff
>> "FOP can embed TIFF images without decompression into PDF, PostScript and
>> AFP if they have either CCITT T.4, CCITT T.6, or JPEG compression.
>> Otherwise, a TIFF-capable Image I/O codec is necessary for decoding the
>> image.
>> There may be some limitation concerning images in the CMYK color space."
>> Could someone explain the meaning of those sentences. Thanks.
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