Mailing-List: contact dev-help@pdfbox.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@pdfbox.apache.org
Date: Fri, 18 May 2012 09:42:08 +0000 (UTC)
From: =?utf-8?Q?Andreas_Lehmk=C3=BChler_=28JIRA=29?= <jira@apache.org>
To: dev@pdfbox.apache.org
Message-ID: 
 <824617142.13354.1337334128607.JavaMail.tomcat@hel.zones.apache.org>
In-Reply-To: 
 <485702683.2540.1328546639173.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Updated] (PDFBOX-1223) Strange color issues with
 convertToImage method
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable


     [ https://issues.apache.org/jira/browse/PDFBOX-1223?page=3Dcom.atlassi=
an.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Lehmk=C3=BChler updated PDFBOX-1223:
---------------------------------------

    Issue Type: New Feature  (was: Bug)
   =20
> Strange color issues with convertToImage method
> -----------------------------------------------
>
>                 Key: PDFBOX-1223
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1223
>             Project: PDFBox
>          Issue Type: New Feature
>    Affects Versions: 1.6.0
>            Reporter: Jimi Hulleg=C3=A5rd
>              Labels: colorspaces, convertToImage, rendering, transparent
>         Attachments: case1.pdf, case1.png, case2.pdf, case2.png, case3.pd=
f, case3.png, case4.png
>
>
> While testing PDFBox I noticed a few strange color issues when converting=
 the first page of an pdf to an image using the method convertToImage on a =
PDPage. An example pdf and resulting png is attached for each case.
> - Case 1: Most of the colors seem to get inverted.
> - Case 2: The green color of the area in the top right is paler the the o=
riginal, and the text under the logo at the bottom right is quite "pixely"
> - Case 3: The blue area under the text is missing
> - Case 4: The red area should be semi-transparent (so the rose stem can b=
e seen behind it), not solid.
> I compared all resulting images with how the pdf looks in Foxit Reader 5.=
1 on Windows 7.
> This is the code I used:
> ---------
> PDFParser parser =3D new PDFParser(new FileInputStream(pdfInputFile));
> parser.parse();
> PDDocument document =3D parser.getPDDocument();
> List<PDPage> pages =3D (List<PDPage>)document.getDocumentCatalog().getAll=
Pages();
> if (pages.size() > 0) {
> =09PDPage page =3D pages.get(0);
> =09BufferedImage image =3D page.convertToImage(BufferedImage.TYPE_INT_RGB=
, 300);=09=09
> =09ImageIO.write(image, "png", pngOutputFile);
> }
> ---------
> If there is some change I can do in my code or some configuration to impr=
ove some of these issues, then I would love to hear about it. As a comparis=
on, Ghost4j (with Ghostscript underneath) can handle these cases better. Ev=
en the text under the logo in case 2 was less "pixely", with the same resol=
ution.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrato=
rs: https://issues.apache.org/jira/secure/ContactAdministrators!default.jsp=
a
For more information on JIRA, see: http://www.atlassian.com/software/jira