[OpenJPEG] PNG codec for OpenJPEG_v1_3

[GoogleCodeExporter]

To:openjpeg@googlegroups.com
Subject:[OpenJPEG] PNG codec for OpenJPEG_v1_3

This could have been the final version for OpenJPEG_v1_3. But the
'tiled image' case and other cases are unsolved.

This codec has been tested with bit_depth: 16, 8, 4, 2; with/without
alpha transparency; with color/gray. In both directions: 
PNG --> J2K --> reversePNG .

READ:
=====
16 Bit and parameters->cp_cinema are not used: I do not know what
cp_cinema is.

1,2,4 Bits are expanded to 8 Bits: I do not know whether the library
accepts these depths.


READ/WRITE:
===========
Time and Text are not used: I do not know whether the library accepts
Time/Text.


If this version should be accepted, I could write the codec for
OpenJPEG_v2.

winfried

Original issue reported on code.google.com by szukw...@arcor.de on 10 Mar 2010 at 5:48

Attachments:

• PNG_codec_v1.c.7z

[GoogleCodeExporter]

Thanks Winfried for this patch. I committed it (rev554) but still have problems 
to 
make it functional under windows. Currently, an error message will show under 
WIN32 
if you try to (de)compress PNG files.

I tried compiling a libpng static library as we did for libtif, but I can't 
seem to 
have a working compilation. I have linking problems, and libtif and libpng 
libraries 
don't seem to be happy together.

Experts are welcome ;-)

Original comment by fodev...@gmail.com on 26 Mar 2010 at 3:51

• Added labels: OpSys-Windows, Priority-High
• Removed labels: Priority-Medium

[GoogleCodeExporter]

Original comment by fodev...@gmail.com on 8 Apr 2010 at 6:30

• Changed state: Started

[GoogleCodeExporter]

Hi 
With current trunk and opj-1.5 version, the build of png and tiff lib seems to 
be correctly handle.

We should closed this issue.

Best
Mickael

Original comment by savmick...@gmail.com on 2 Nov 2011 at 2:17

[GoogleCodeExporter]

Ok. Closing then.

Original comment by mathieu.malaterre on 10 Feb 2012 at 10:35

• Changed state: Fixed