Level Correction

Select the [Edit] menu > [Tonal Correction] > [Level Correction] to adjust the brightness of the selected layer with a histogram. You can adjust the brightness of the selected layer using the graph.

Applicable layers

Raster layer (gray) Raster layer (color)

·This section describes how to apply tonal correction effects to layers, using the example of Level Correction. For details, see "Applying a Tonal Correction". ·For information on the settings in the [Level Correction] dialog box, please see the following section.

[Level Correction] Dialog Box

(1)  Channel

Select a channel to adjust the levels. You can choose from [RGB], [Red], [Green], or [Blue].

(2)  Histogram

This graph displays the volume of the dark areas (left side) and bright areas (right side) as mountain-like peaks.

(3)  Shadows

This controls the darkest parts of the image. Drag to the left and right to adjust the brightness of the image. Drag to the left to make the image brighter, or to the right to make the image darker. The [Shadows] control point is usually the furthest left under the histogram.

(4)  Midtones

This controls the midtones of the image. When you move the [Shadows] control point or the [Highlights] control point, the [Midtones] control point moves in tandem. You can move the [Midtones] control point without affecting the [Shadows] or [Highlights] control points. Drag to the left to make the image brighter, or to the right to make the image darker.

(5)  Highlights

This controls the lightest parts of the image. Drag to the left and right to adjust the brightness of the image. Drag to the left to make the image brighter, or to the right to make the image darker. The [Highlights] control point is usually the furthest right under the histogram.

(6)  Shadows output

This controls the darkest parts of the image. Drag to the left and right to adjust the brightness of the image. Drag to the left to make the image brighter, or to the right to make the image darker.

(7)  Highlights output

This controls the brightest parts of the image. Drag to the left and right to adjust the brightness of the image. Drag to the left to make the image brighter, or to the right to make the image darker.

(8)  Preview

Turn this on to preview the results on the canvas.

(9)  Auto adjust

Automatically adjusts the contrast in accordance with the imported image.