On Foveon X3 Quattro...

Started Feb 10, 2014 | Discussions thread
Roland Karlsson Forum Pro • Posts: 27,728
Re: Very nice

bobn2 wrote:

Roland Karlsson wrote:

bobn2 wrote:

Kendall Helmstetter Gelner wrote:

bobn2 wrote:

Kendall Helmstetter Gelner wrote:

Raist3d wrote:


Well yes, but still a guess, and informed in some situations. You did remove some data from them- you removed red and green color accuracy.

That accuracy is maintained by the top layer, it's just a question of releasing it.

How can one layer maintain colour accuracy?

By correctly pulling apart bottom layer averages based on information also stored in the top layer.

The top layer stores one scaler value per pixel. How does that allow one to 'pull apart bottom layer averages'? I'm presuming what you mean is that you could calculate four sub-pixel values for the lower layers by weighting the pixel value by each of the four pixel values from the top layer - certainly there would then be four different pixel values, but how would you know that those values would be the same as those that would have been recorded by four separate pixels in that layer?

Kendall is simply wrong.

At least here he can't ban people he disagrees with.

He is not moderator any more.

 Roland Karlsson's gear list:Roland Karlsson's gear list
Sigma DP3 Merrill Sigma dp2 Quattro Sony RX100 III Pentax K-3 Pentax K-1 +14 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow