OT - Re: Windows standalone puzzle

[Roger Eller]

If they can edit what we "see" in a journalist presentation of the facts,
have they not in a way, erased some of the truth?

~Roger
On Aug 21, 2013 7:41 PM, "Alex Tweedly" <alex at tweedly.net> wrote:

> On 20/08/2013 16:52, Richard Gaskin wrote:
>
>> This is why I love this community:
>>
>> ...
>> Collectively, there's nothing we can't solve. :)
>>
>> --
>>  Richard Gaskin
>>
> I've often thought that if I had *any* technical question, I could ask
> this list and there would be someone who knew (or at least had a very good
> idea of) the answer. So here goes ... :-)
>
> Every night when I watch the news on TV, they say something like "Here's
> (John Smith) at the news conference held this afternoon. Warning - this
> report contains some flash photography".
>
> Now I know why they give this warning - that repeated rapid flashing from
> still cameras can cause problems for nystagmus, epilepsy and various other
> disease sufferers.
>
> What I don't know is why they don't just digitally edit out the flashing.
> Surely this must be (relatively) easy Digital Video Processing - you detect
> a non-trivial part (10% threshold??) of the frame which increases in light
> level for a single frame (assuming anything between 20 and 60 fps) and then
> returns to its original levels.
>
> OK - I know almost nothing about DVP, but if they can overlay a touchdown
> line on a football field, or change a Coke to Pepsi can, or all those other
> marvels, surely it can't be that hard to eliminate 95% of the flashing -
> and wouldn't that would be enough to reduce it below the trigger point for
> most vulnerable viewers. It needn't even be done in real time - it could be
> left as a warning for any live showing, and then automatically removed by
> program and checked by a human editor before subsequent showings.
>
> -- Alex.
>
>
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