Curves map original brightness to edited brightness. A gentle shape can create rich contrast, while a poorly placed point can flatten faces or clip highlights.

A practical way to approach it

Read the diagonal

The lower-left area represents darker tones and the upper-right area represents brighter tones. A straight diagonal means no tonal change.

Bend with care

Lift lower midtones to brighten dark subjects; lower upper midtones to tame bright areas. Compare a few modest points instead of making sharp corners.

Watch color channels

RGB curves affect tone; individual red, green and blue curves can introduce a color cast, especially in gray areas.

One limitation to remember

Do not use curves to repair clipped source pixels that contain no recorded detail.

TRY IT ON YOUR PHOTO

Continue in MintGrade: Curve controls

The lower-left area represents darker tones and the upper-right area represents brighter tones. A straight diagonal means no tonal change.

Opens the relevant controls for JPG, PNG and WebP files. No edit is applied until you choose one.

Open curve controls in MintGrade →