Revision Date: 27 August 2015

Adjustments Menu

The commands in the Adjustments Menu modify the colorization of pixels. Many common photo editing adjustments are available and all have associated keyboard shortcuts.

Pagoda Adjustments Menu

This example image will be used to illustrate the various adjustments:

Pagoda Example Image

Adjustments Auto Level icon Auto-Level

Auto-Level is used to equalize the range of colors in an image.

The adjustment attempts to bring images which are under exposed or over exposed (overly dark or bright) back within normal range.  Auto-Level has no configurable options and does not display a dialog.


The Auto-Level adjustment is equivalent to using the Levels adjustment and clicking the "Auto" button.



Auto Level

After applying Auto-Level.

Adjustments Black and White icon Black & White

This adjustment desaturates an image, removing all color information and rendering the image in grayscale.  The resultant image will be reinterpreted in black, white & shades of gray.



Black and White

Image desaturated with Black & White.

Adjustments Brightness and Contrast icon Brightness / Contrast

This adjustment is used to make an image brighter or darker (Brightness), or to make colors stand out more or less from other colors (Contrast).




Increased brightness.


Increased contrast.

Brightness and Contrast

Both increased brightness and contrast

Adjustments Curves icon Curves

The Curves adjustment is used to adjust the luminosity and/or RGB (Red, Green & Blue) color curves of an image.  This powerful adjustment is covered in detail in the Curves section.

Adjustments Hue and Saturation icon Hue/Saturation

This adjustment is primarily used to change the saturation, or vividness, of the colors in an image.  The gamut of Hues can be rotated to render the image in a different palette while maintaining the same levels of contrast.  The adjustment also allows the modification of the images Lightness, which is similar to the Brightness adjustment (see above).



Hue Saturation

Modified image showing Hue rotated to 88 and Saturation of 158.

Adjustments Invert Colors icon Invert Colors

This adjustment is very similar to a photographic negative. Colors are swapped for the hue found on the opposite side of the color wheel.  Black become White and vice versa for example.  Applying the adjustment a second time restores the original image coloration.




Image with inverted colors.

Adjustments Levels icon Levels

This complex adjustment is used to adjust the color range and gamma index of an image.  A detailed discussion of this adjustment can be found in the Levels section.

Adjustments Posterize icon Posterize

This adjustment reduces the number of available color values that each pixel can use.  Normally, each of the RGB (Red, Green & Blue) color channels has 256 possible values (0 through 255). This adjustment limits the range from as few as 2 to a maximum of 64 possible values.  The effect gives an image a "posterized" or even a retro or "faux dithered" look.




"Posterize" Adjustment

Adjustments Sepia icon Sepia

This adjustment mimics an aged photograph by rendering the image in black & white, and adding a sepia tone. This can be used to give images an "aged" look.




Image after the "Sepia" Adjustment