Re: Jpeg Encoder: YCC Clipping error
- From: Jeff Vidal <jeffvidal@xxxxxxxxx>
- Date: 28 May 2007 04:23:16 -0700
On 28 mai, 13:17, Jeff Vidal <jeffvi...@xxxxxxxxx> wrote:
Thank you, and sorry for the "snoop" !
This is the original image:http://www.gvidal.fr/misc/PortCergy.jpg
(Bitmap converted to Jpeg with a working compressor).
By the way:
"Since the DC components are calculated by keeping a running total
starting from
the top-left MCU, it is very easy to see how the cumulative value can
underflow
if something gets out of sync. "
It's not what I've read, and it's not what I've coded.
My professor told me that the DC components are calculated by keeping
a running total starting from the first MCU of each row !!
So if this is wrong, this is why I get an underflow!
.
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