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Advanced Imaging API Sample Image File Readers and Writers Known Bugs and Issues
These are the known bugs and enhancement
requests for the Java Advanced Imaging (JAI) Sample Image File Readers and Writers.
The JPEG decoder cannot decode abbreviated
JPEG streams.
The FlashPix decoder throws an
ArrayIndexOutOfBoundsException when reading some FlashPix
images created by Microsoft Picture It 2000.
The BMP encoder does not support writing
out images compliant with any other version other than
Version 3.0.
BMP, TIFF and JPEG encoders cannot encode
BufferedImages of the type INT_RGB. A workaround is
to re-format the data before passing it to the encoder
such that each 8-bit sample is stored in a byte.
The TIFF encoder does not support LZW compression for the
usual reason of the patent on the algorithm.
TIFF decoder cannot read images stored
in Planar format (PlanarConfiguration tag has value 2).
These bugs are present in the JAI 1.1.1 release but have a
source level fix provided in the BugFixes.jar
jar archive contained in the JAI 1.1.1 Sample I/O download
bundles.
The TIFF encoder cannot write 4-bit grayscale images.
The TIFF encoder does not generate correct G3_2D and G4
compressed data when the image width is not a multiple of 8.
The TIFF encoder cannot correctly write multiple pages
per TIFF file when the data are bilevel and compression is used.
The TIFF decoder cannot read non-compliant TIFF images wherein
the value of the "RowsPerStrip" field incorrectly exceeds the image
height.
The FlashPix decoder throws an index out of bounds exception
as a result of ignoring the ENDOFCHAIN codes in a
FAT sector array.
The FlashPix decoder does not ignore the color space calibration
bit and consequently does not apply color space conversion to
uncalibrated images.
Index out of bounds errors occur in SimpleRenderedImage
getData(Rectangle) and copyData() methods. This
does not occur when the codecs are used within JAI, i.e., via the I/O
operations, e.g., "FileLoad", "FileStore", etc., as in that case these
methods are never invoked.
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