Opened 21 years ago

Last modified 21 years ago

#290 closed defect (fixed)

JasPer support for pseudocolored images.

Reported by: warmerdam Owned by: dron
Priority: high Milestone:
Component: GDAL_Raster Version: unspecified
Severity: normal Keywords:



The JasPer drive doesn't seem to support reading the color table for pseudocolored
JPEG2000 images.  I have attached a sample.  I am not sure what it is supposed
to look like in color since pseudocolor support doesn't work with the JP2KAK 
driver yet either!

This is low priority, $10 work.

Attachments (1)

thorax_small.jp2 (16.0 KB ) - added by warmerdam 21 years ago.
pseudocolored JPEG2000 file

Download all attachments as: .zip

Change History (4)

by warmerdam, 21 years ago

Attachment: thorax_small.jp2 added

pseudocolored JPEG2000 file

comment:1 by dron, 21 years ago

Unfortunately colour tables are not supported by JasPer yet. I shall look at
specs and implement this if it will not require a lot of ugly hacks (already
enough such things in JPEG2000 driver!).

comment:2 by warmerdam, 21 years ago


Sounds good.  Just implement if it is covenient.

comment:3 by dron, 21 years ago

Problem fixed. Note: colour table does not reported by the driver, image
converted according LUT by JasPer. So we will get already converted multichannel
image in appropriate colourspace as a result.

Sample image now looks identical in jiv (viewer supplied with JasPer
distribution) and in OpenEV.
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