Brightness Curve and probe tracing

Moderator: jsachs

Post Reply
tomczak
Posts: 1367
Joined: April 25th, 2009, 12:56 am
What is the make/model of your primary camera?: Fuji X-E2
Contact:

Brightness Curve and probe tracing

Post by tomczak »

Is there a way, in the Brightness Curve transformation, to probe the input (or output) image and display the lasting trace of the values below the histogram?

If the mouse is held by left click and the cursor moved around the main preview image (input or output), a faint red vertical line is displayed on the histogram, as the mouse move (in the dual histogram mode, the line is always displayed on the Output - lower- histogram regardless of whether the Input or the Output image is probed). The histogram also flickers (updates itself) quite frequently when this is being done. But I couldn't find a way to mark the ranges of probed points as it is possible for example in the Advanced Sharpen roughness histogram when moving shift-left clicked mouse around the image.
Maciej Tomczak
Phototramp.com
jsachs
Posts: 4203
Joined: January 22nd, 2009, 11:03 pm

Re: Brightness Curve and probe tracing

Post by jsachs »

The Histogram tool can do this (click the Histogram button in the main tool bar). It has a separate eraser button to clear the accumulated red lines.

For the next release, I fixed the problem of the dual histogram probe showing up on the wrong histogram. I also changed the way the probe works so that as long as you click and drag, the red line accumulate. When you release the mouse button the are erased. I also fixed the flashing.
Jonathan Sachs
Digital Light & Color
Post Reply