1.96: Incorrect bit-depth thumbnail detail for Lurawave JP2

[Guest]

Description:

XnView thumbnail details displays a bit-depth of 8 for JP2K files (with higher bit-depths according to XnView Properties) with the Lurawave JP2K plugin.

I have tried a clean reinstall of XnView, but continue to observe the same results.


Environment details:

- OS: Windows XP Professional SP3 (x86)
- XnView v1.96 Final
- - New XnView.ini
- - LuraWave.jp2 Dll v1.1.0.16


Workaround:

1. Temporarily remove "\Plugins\lwf_jp2.dll"
2. Generate/rebuild thumbnails for JP2 files (thumbnail cache enabled).
3. Restore "\Plugins\lwf_jp2.dll"


Question:

Is it possible to select/set a preferred plugin to use for reading when multiple plugins for a format are installed (eg. Jasper and Lurawave) ?


Thank you for creating XnView.

[xnview]

XnView thumbnail details displays a bit-depth of 8 for JP2K files (with higher bit-depths according to XnView Properties) with the Lurawave JP2K plugin.

Lurawave plugin load only on 8bits/component

Is it possible to select/set a preferred plugin to use for reading when multiple plugins for a format are installed (eg. Jasper and Lurawave) ?

Not possible...

Why you don't use Jasper plugin?

[Guest]

Greetings,

Thank you for your corrospondence.

Lurawave plugin load only on 8bits/component

Does the "8bits/component" refer to "Bits per Plane", "Bits per Pixel", or something else?


To verify:

In the Alt+Enter Properties->Image tab, of all of my JP2K files, it indicates (amongst other things):

• LuraWave JPEG-2000 Format
  Bits per Plane: 8
  # of Planes: 4
  Bits per Pixel: 32

The thumbnail label for the same file reads:

• Filename.jp2
  LuraWave JPEG-200...
  1600x1200x8

However, a Photoshop PSD image I have which has similar attributes:

• Adobe Photoshop Document
  Bits per Plane: 8
  # of Planes: 4
  Bits per Pixel: 32

The thumbnail label for the same file reads:

• Filename.psd
  Adobe Photoshop Do...
  1280x1856x32

I had assumed the bolded parts indicated "Bits per Pixel"; if not, what does it reference?

Why you don't use Jasper plugin?

I used the LuraWave plugin instead because:

• -The JP2 files seemed to load a little bit faster with the LuraWave plugin.
  -Also, after reading what was written here http://newsgroup.xnview.com/viewtopic.php?p=62737#62737 I had the impression that the LuraWave plugin had more/better features than Jasper.

If you would be willing, could you give your personal opinion/recommendation which is the better (or pros/cons), and the (possibly technical) reasonings behind it?

[xnview]

Lurawave plugin load only on 8bits/component

Does the "8bits/component" refer to "Bits per Plane", "Bits per Pixel", or something else?

It's 8bits per plane or per component