wwp@yahoogroups.com:
Re: high quality in QT 7.1.1
Hans Nyberg 2006-Jun-28 17:52:00
On 28/6-2006, at 19.06, bruce_hemming wrote:
> <H264 is not supported unless you have the last Quicktime so I guess
> less than 5% will see it.>
>
> Is that really all the take up of QT7 is Hans? I will have to change
> it back to photojpeg
> then!
H264 was not supported for QTVR until 7.1 which I believe is less than
2 months ago.
So 5% is probably to much.
>
> In the meantime here is a test - cube faces 1908, photojpeg
> compression 36%
>
> <http://www.bhphoto.biz/test/jpegtest.html>
This type of sky is the hardest of all to compress without banding.
I can see you have used 36% compression. That is to much. Banding in
areas like this starts at 50%.
Just for those on PC I am talking about the Scale we use on Mac and in
Photoshop.
I suggest you reduce the Cubefaces to 1500x1500 and use 50%
Compressed Size will be almost the same and you will not see much
difference in sharpness.
1500x1500 is enough for fullscreen even on my 23" Cinema at 1920x1200.
Just remember not to use much sharpening but leave the image a little
soft.
Especially if you have grass or trees with small branches covering
large areas.
Sharpening too much on them makes the image very difficult to compress.
Hans
Hans Nyberg
<http://www.panoramas.dk> Panoramas.dk - Features Fullscreen QTVR