Encoder/Decoder feature set.

[JimBobSquarePants]

Hi there,

Is there a feature set listed anywhere that compares the jpeg encoder/decoder functionality against libjpeg.

I'm currently writing a cross-platform imaging library ImageProcessor and I have run into performance issues with the current encoder I am using so I am looking for alternatives.

I'm also wondering how many of the issues listed on Google code are still relevent?

Many Thanks

James

[anders9ustafsson]

Hi James,

Many thanks for asking! I've taken a quick glance at ImageProcessor in the past and it looks impressive.

Unfortunately, neither Brian nor I are actively developing this library right now. Brian forked it from Google Code a few years ago and set up the NuGet package, I added PCL functionality to allow the library to be used cross-platform. Since then we have accepted a few pull requests from other contributors, that's all.

I also do not have any really good overview of supported features. Personally, from my medical image perspective, my main concern has been that FluxJpeg only supports 8-bit images, but that is probably not a big issue for a general image processing framework.

The issues list on Google Code is also no up-to-date, but I cannot say up-front what is fixed and what is not. Ideally we should of course import the list and tick off the fixed items... In due time :-)

From a development activity and completeness perspective LibJpeg.Net is probably a safer bet right now. On the other hand, that library is not cross-platform, right? It should be relatively easy to turn it into a PCL library though; there is already a Silverlight version that excludes the System.Drawing references.

Best regards,
Anders @ Cureos

[anders9ustafsson]

@JimBobSquarePants You woke the issue importer in me :-) The open Google Code issues have now been transferred to this repository. When I have the time I will go through each one in detail and close those that are completed or invalid.

[JimBobSquarePants]

Hi Anders,

Thanks for your swift reply.

LibJpeg.Net is actually what I am using just now, albeit embedded within my own codebase. Unfortunately it's horribly slow taking 5-6 seconds to decode/encode a (3648 x 2736) image when System.Drawing can do it in ~400ms. Compounding this the code is nigh on unreadable making it incredibly difficult to optimise. The code here is much easier to follow.

Digging through your source code I cant find any reference to progressive Jpeg's though and I would like to support as much of the Jpeg standard as possible Looks like I have a spec to read...

Very glad to see you've imported the issues! That's great to see:)

Cheers

James