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https://issues.apache.org/jira/browse/PDFBOX-6151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18055122#comment-18055122
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Tilman Hausherr commented on PDFBOX-6151:
-----------------------------------------
If anyone wants to work on this, here's the test code:
{code:java}
@Test
public void testSerenity() throws IOException, JBIG2Exception
{
String dir = "XXXXXXXX";
File zipFile = new File(dir, "serenity-jbig2-files.zip");
Bitmap expectedBitmap = getBitmap(zipFile);
// alternatively:
//
https://github.com/user-attachments/files/24440663/serenity-jbig2-files.zip
InputStream is = new FileInputStream(zipFile);
ZipInputStream zis = new ZipInputStream(is);
ZipEntry ze;
while ((ze = zis.getNextEntry()) != null)
{
if (ze.isDirectory() || !ze.getName().endsWith(".jbig2"))
{
continue;
}
final ImageInputStream imageIIS =
ImageIO.createImageInputStream(zis);
try
{
String filename = ze.getName().substring(0,
ze.getName().length() - 6) + ".png";
File file = new File(dir, filename);
file.delete();
final JBIG2Document doc = new JBIG2Document(imageIIS);
final JBIG2Page page = doc.getPage(1);
Bitmap bitmap = page.getBitmap();
if (!bitmap.equals(expectedBitmap))
{
ImageIO.write(Bitmaps.asBufferedImage(bitmap), "png", file);
System.err.println("unequal: " + ze.getName());
}
else
System.out.println("equal : " + ze.getName());
// Assert.assertEquals(expectedBitmap, bitmap);
}
catch (Exception ex)
{
System.err.println("threw " + ex.getClass().getName() + ": " +
ze.getName() + ": " + ex.getMessage());
ex.printStackTrace();
}
imageIIS.close();
}
zis.close();
is.close();
}
private Bitmap getBitmap(File file) throws IOException, JBIG2Exception
{
// get the "perfect" image
ZipFile zipFile = new ZipFile(file);
InputStream is =
zipFile.getInputStream(zipFile.getEntry("bitmap.jbig2"));
final ImageInputStream imageIIS = ImageIO.createImageInputStream(is);
final JBIG2Document doc = new JBIG2Document(imageIIS);
final JBIG2Page page = doc.getPage(1);
Bitmap bitmap = page.getBitmap();
is.close();
zipFile.close();
return bitmap;
}
{code}
> Run serenity JBIG2 tests
> ------------------------
>
> Key: PDFBOX-6151
> URL: https://issues.apache.org/jira/browse/PDFBOX-6151
> Project: PDFBox
> Issue Type: Task
> Components: JBIG2
> Affects Versions: 3.0.4 JBIG2
> Reporter: Tilman Hausherr
> Priority: Minor
>
> Run the jbig2 files from the serenity tests to see what happens.
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