RedShark News

VP9 codec rides to the aid of 4K

Published in Studio & Broadcast

Google seems to be saying "Forget H.265 - our VP9 codec is here, now, and is better"

There are so many great articles in RedShark's archive - we're publishing this again in case you missed it first time!

Redshark's only 10 months old, and our readership is growing all the time. So if you're a new arrival here you'll have missed some great articles from earlier in the year

The art of Colour Rendering

Published in Post & VFX

Human beings come in a variety of exciting colours. Rendering those colours in a pleasing way has been a goal of photography since before photography actually had colours, but it's always going to be an incredibly subjective issue

Could VP9 be the codec for 4K Blu-Ray?

Published in Studio & Broadcast

 Even though many pundits think 4K will be delivered by streaming, there are plenty of households still with slower broadband for whom this will not be an option. Now, it seems, Google's free VP9 codec might be a candidate for a new "Blu-Ray" format

This article was extremely popular when we first published it. In case you missed it first time - here's a second chance to read it. Sony's XAVC is used across an increasing number of its professional camcorders. Why did they choose yet another format? There were good reasons, as we explain below

Avid launches DNxHR resolution independent codec

Published in Post & VFX

 Avid products will now finally support 4K natively so that you can edit 4K in real time instead of using a proxy, but there have been a few surprises with this announcement at IBC

8 bit or 10 bit? The truth may surprise you

Published in Technology & Computing

It’s a great pity that in order to enjoy the benefits of digital imaging, we must use pixels that may only be one of a comparatively small selection of colours, as opposed to the effectively infinite subtlety of nature. Phil Rhodes spreads light and understanding about quantization and noise.

The art of Motion Tracking

Published in Post & VFX

For most of the history of film, if you wanted to insert something into the picture that didn't exist,  the camera had to be stationary. Motion tracking allows artificial objects to be inserted convincingly into real footage. Phil Rhodes explains

Researchers at the University of Bath claim to have invented a codec based not on pixels but on vectors. Vector graphics have been around for a long time but until now they have not been considered to be suitable for general purpose image work - and certainly not for video - because while they have distinct advantages, they are difficult to use where images are complex

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