For finer control, use the Input/Output text boxes to adjust the value of any selected control point.When an individual channel is selected, color gradients appear in the curve making it easier to anticipate adjustments. To make adjustments to the colors in an image, click the red, green and blue circles to access and adjust the individual red, green, and blue channels.A maximum of 16 points can be added to the curve to make fine adjustments. The Point Curve - Click the gray circle at the top of the Tone Curve panel to select the Point Curve.

Click the “light switch” in the upper left of the Tone Curve panel to hide/show changes made in that panel.

Control -click (Mac) | right-click (Win) in the Point Curve grid area to access additional options including: Reset Regions, Reset Splits, Reset Regions and Splits, Reset Curve, and Reset All.

To reset all sliders, double click the word “Region”. To reset a single slider, double click its name.To change the tonal range affected by any of these sliders, reposition the triangles (directly under the curve).Click -drag up/down on the Parametric curve to lighten/darken the image or, use the Highlights, Lights, Darks, and Shadows sliders (below the curve) to make adjustments.

The Parametric Curve - Use the icon across the top of the Tone Curve panel to select the Parametric Curve. While both curves can be used to make adjustments to the tonal values in an image, the Point Curve can also be used to change color values. There are two different curves within the Tone Curve panel – the Parametric and the Point curve.

Lightroom vs lightroom classic 2019