A user claims the TIFF imageio plugin is more than 10 times slower than the TIFF encoder in JAI Codec when encode tiled TIFF in jpeg.  Also, the size of the result image is significantly larger than the one generated from the TIFF encoder in JAI codec.

The test programs and the test images for reproducing this problem are attached.

N/A

  xxxxx@xxxxx   2004-04-30

TIFFJPEGCompressor is writing first to a wrapped ByteArrayOutputStream, getting the byte array from that stream, and then writing that array to the actual output stream. It would be ideal if the eventual output stream were written to directly. Also it would be good to write a single JPEGTables field and then each strip or tile as an abbreviated stream.

On the decoder side data were also being read into an intermediate byte array but this problem has been fixed.

Actually this is probably not the source of the problem. It looks as if in the writer the optimized data layout case is not being used and data are copied row-by-row. The input image has reverse-oriented band offsets {2, 1, 0}.
  xxxxx@xxxxx   11/2/04 02:34 GMT

Verified that the problem is due to falling into the generic unoptimized path.
  xxxxx@xxxxx   2004-11-06 01:13:54 GMT