SAW gradients at various Gammas

[Bill Ravens]

thanx, Greg.
wow, did I miss your question somewhere, Randy?
I just plugged my EX1 into HDRACK and brought up the SAW gradient. I measure a full range in the gradient, from RGB0 to RGB255, across the gradient. There are "flat spots" of super black and super white at either extreme of the gradient.
Hope this answers your q.

[Greg Boston]

Originally Posted by Randy Strome

Thanks Greg, but you have lost me :)

Are you saying that #1 does not indicate that all values above (in this case 207) are being mapped to a flat value?

I am saying that I don't know where slope #2 came from, but #1 is a 'true' sawtooth wave because of its endpoint being directly above the base.

I originally entered this discussion to explain what 'SAW' meant as it applies to that test gradient, in that it will appear on a scope as a sawtooth wave.

-gb-

[Randy Strome]

Originally Posted by Bill Ravens

thanx, Greg.
wow, did I miss your question somewhere, Randy?
I just plugged my EX1 into HDRACK and brought up the SAW gradient. I measure a full range in the gradient, from RGB0 to RGB255, across the gradient. There are "flat spots" of super black and super white at either extreme of the gradient.
Hope this answers your q.

Thanks again guys. I genuinely appreciate your input, although, if I am understanding Greg correctly, it has resulted in two contradictory opinions.

Edit: Or possibly Greg is saying that this sawtooth wave result is based on an input that included an area of gradient followed by an area of straight white-in which case, no disagreement at all.