[theora] NHW Image codec - improvement of precision

[Raphael Canut]

Hello,

Just a quick message to let you know that I have improved the compression
scheme of UV DC part, of 200octet in average... And so I use this space to
better select the wavelet coefficients in the higher bands (for Y
comp).This new version has then a little more precision.

Many thanks,
Raphael


2013/4/8 Raphael Canut <nhwcodec at gmail.com>

> Hello,
>
> Just a quick message, I have improved precision on U and V components, and
> so this version is better if it may be of interest.Yes, for now the NHW
> codec is just an experimental test tool, that would be optimized for visual
> evaluation (more neatness-sharpness) rather than PSNR.
>
> If you could find time to test it, would be really interested in any
> feedback (about for example the overall approach, results,...).
>
> Many thanks again,
> Raphael
>
>
> 2013/3/25 Raphael Canut <nhwcodec at gmail.com>
>
>> Hello,
>>
>> Just a very quick message, for those interested, I improved a
>> little precision of my codec.This version also has a better compression,
>> especially for some images.This version seems a little better.Any comment
>> is welcome.
>>
>> Many thanks,
>> Raphael
>>
>
>
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