Probably of no use to many, but meh.

Being the space conservation freak that I am, I've decided to compress all my JPEG images to packJPG to save a few GB on my HDD.
Unfortunately, packJPG is less convenient as there's no application to view .pjg files directly.  This plugin aims to solve that, at least for me, by offering the ability to view .pjg images in XnView.

To install, put Xpjg.usr in XnView's plugins folder.  This also works with the Windows version of XnViewMP, but I doubt it for Linux/OSX as the .usr file is essentially a renamed .dll

Note that this only works with packJPG 2.5/2.5a files (not earlier and probably not later versions).  Also, packJPG decompression is very slow, and XnView doesn't appear to multithread generate thumbnails unfortunately.  There's probably some scope for speed improvements down the track, if I can be bothered.

My crappy source code can also be found below.

(16/03/2012 06:30 AM)hibbyware Wrote:  What sort of compression ratio does packJPG achieve?

http://endlessparadigm.com/forum/showthr...#pid414517

Save 6GB in 25GB supposedly.  This pretty much shows how crappy jpg (or at least it's entropy coder) is.

I wonder if MS's new JPEG_XR is any good.

(This post was last modified: 16/03/2012 10:26 AM by Assassinator.)

(16/03/2012 08:33 AM)hibbyware Wrote:  I've never been a fan of jpg with it being a lossy format and not supporting transparency.

I still have a soft spot for png.

PNG also sucks ass, it's technology from 15years back.

Actually, all image formats in popular use right now suck.

(This post was last modified: 16/03/2012 08:44 AM by Assassinator.)

You must have a ton of pictures >.< Ill try this out though, I'm bored.

(This post was last modified: 16/03/2012 09:01 AM by xBu.)

(16/03/2012 08:49 AM)hibbyware Wrote:  It maybe an old format but apart from the file sizes I rather like it.

It's lossless compression yo, it's all about the file sizes.

Well, decoding speed matters too I guess, but any computer made in the last 10 years can decode images just fine, wee're not talking about decoding 1080p videos here.

(This post was last modified: 16/03/2012 09:05 AM by Assassinator.)