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Task #4277 (closed)

Opened 14 years ago

Closed 14 years ago

Improve JPEG-2000 decoding performance

Reported by: mlinkert Owned by: mlinkert
Priority: major Milestone: OMERO-Beta4.3
Component: Bio-Formats Version: n.a.
Keywords: n.a. Cc: cxallan
Resources: n.a. Referenced By: n.a.
References: n.a. Remaining Time: 0.0d
Sprint: 2011-02-24 (6)

Description

SVS tile decoding is still quite slow (~70-500 ms per 240x240 tile, depending upon hardware). It would be nice to improve this performance, so that importing these files is less painful.

Change History (9)

comment:1 Changed 14 years ago by Melissa Linkert <melissa@…>

(In [937c27e7f033c62396d0ca928c7cfa4ad3a2a54b/bioformats.git]) A few small improvements to JPEG-2000 decoding performance.

See #4277.

comment:2 Changed 14 years ago by mlinkert

  • Remaining Time set to 0.5

comment:3 Changed 14 years ago by mlinkert

  • Status changed from new to accepted

comment:4 Changed 14 years ago by Melissa Linkert <melissa@…>

(In [4289a5ab60dc3f30b6b2c8dcb69154e3e3f74fed/bioformats.git]) Fixed NPEs when attempting to read a JPEG-2000 file as a Raster.

See #4277.

comment:5 Changed 14 years ago by Melissa Linkert <melissa@…>

(In [7f565837ddda8a3e4b51b536ffebbc491d2e6841/bioformats.git]) Updated JPEG-2000 codec to read images as java.awt.image.Rasters.

This eliminates the overhead required for constructing and
deconstructing BufferedImages?. See #4277.

comment:6 Changed 14 years ago by Melissa Linkert <melissa@…>

(In [937c27e7f033c62396d0ca928c7cfa4ad3a2a54b/bioformats.git]) A few small improvements to JPEG-2000 decoding performance.

See #4277.

comment:7 Changed 14 years ago by Melissa Linkert <melissa@…>

(In [4289a5ab60dc3f30b6b2c8dcb69154e3e3f74fed/bioformats.git]) Fixed NPEs when attempting to read a JPEG-2000 file as a Raster.

See #4277.

comment:8 Changed 14 years ago by Melissa Linkert <melissa@…>

(In [7f565837ddda8a3e4b51b536ffebbc491d2e6841/bioformats.git]) Updated JPEG-2000 codec to read images as java.awt.image.Rasters.

This eliminates the overhead required for constructing and
deconstructing BufferedImages?. See #4277.

comment:9 Changed 14 years ago by mlinkert

  • Remaining Time changed from 0.5 to 0
  • Resolution set to fixed
  • Status changed from accepted to closed

I now see an average of 38 ms per tile with UMD001_ORO.svs, which seems fairly reasonable.

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