Levels and Curves

Got a Photoshop or Elements question? This is the place to get it answered.
mikemeister_admin
Posts: 4925
Joined: Fri Sep 20, 2013 8:29 pm

Postby mikemeister_admin » Fri Nov 02, 2007 2:43 pm

Hi Mike,

If you have a moment, I have a (silly?) question that I can not work out the answer to (nothing new there!).

If I use PS levels, I can adjust the midpoint slider to shift the tones to be lighter or darker.

What I can not work out is how to do exactly the same thing with Curves - am I being stupid or is it impossible?

Thanks
Chris

-default
Posts: 1916
Joined: Thu Mar 26, 2015 1:53 am

Postby -default » Sat Nov 03, 2007 12:18 am

Hi Chris,

You can get very close to Levels by moving the center of the curve diagonally sideways, rather than up and down.  This will not be an exact match because Levels uses an exponential function, and curves uses a polynomial spline, which gives slightly different numbers.

mikemeister_admin
Posts: 4925
Joined: Fri Sep 20, 2013 8:29 pm

Postby mikemeister_admin » Sat Nov 03, 2007 9:28 am

Thanks Mike - I see it now


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