[jira] [Updated] (PDFBOX-1734) ImageIoUtil.WriteImage doesn't work with tiff images

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-1734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr updated PDFBOX-1734:
------------------------------------

    Attachment: TestImageIOUtils.patch
                ImageIOUtil.patch

Patch, also for the test case so that both tiff flavours are done

> ImageIoUtil.WriteImage doesn't work with tiff images
> ----------------------------------------------------
>
>                 Key: PDFBOX-1734
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1734
>             Project: PDFBox
>          Issue Type: Improvement
>         Environment: XP, W7
>            Reporter: Tilman Hausherr
>            Priority: Minor
>              Labels: tiff
>         Attachments: ImageIOUtil.patch, TestImageIOUtils.patch
>
>
> ImageIoUtil.WriteImage brings an I/O error exception when trying to write a tiff file. Debugging shows that the cause is "Bits per sample must be 1 for RLE compression!". This means that the compression used (the first one of the following list, returned by writerParams.getCompressionTypes() ) is only allowed for bitonal images.
> CCITT RLE
> CCITT T.4
> CCITT T.6
> LZW
> JPEG
> ZLib
> PackBits
> Deflate
> EXIF JPEG
> After correcting this, the next problem was that tiff images didn't have the proper resolutions. I added that too. Yes it uses the com.sun.* classes; however there is no other way. Even apache xmlgraphics uses them, although in a very different way than I do
> https://svn.apache.org/repos/asf/xmlgraphics/commons/tags/commons-1_3_1/src/java/org/apache/xmlgraphics/image/writer/imageio/ImageIOTIFFImageWriter.java
> writeImage() has a parameter "int imageType" which is never used. Why?



--
This message was sent by Atlassian JIRA
(v6.1#6144)