Acorn Acorn 6

Common Image Color Adjustments



Image color adjustments are performed with filters via the filters window.  Filters can found by going to the ‘Filters’ menu item, using keyboard shortcut Shift-Command-F (⇧⌘F), or clicking the ‘fx’ button at the bottom left of the inspector palette.



Saturation  

Adjust the intensity of color in your image.  Filter ▸ Color Adjustment ▸ Color Controls 


Brightness  

Adjust the darkness or lightness in your image. Filter ▸ Color Adjustment ▸ Color Controls


Contrast 

Adjust the difference between the lights and darks of your image. Filter ▸ Color Adjustment ▸ Color Controls


Exposure 

Adjust how much light is exposed, similar to film or sensor when taking a photo. Filter ▸ Color Adjustment ▸ Exposure Adjust


Hue Adjust 

Adjusts the color of your image, leaving black, white, and gray alone. Filter ▸ Color Adjustment ▸ Hue Adjust


See also:  Color Adjustment Filters



Curves 

Adjust an image’s shadows, highlights, and mid-tones including red, green, and blue. Filter ▸ Color Adjustment ▸ Curves


See also:  Curves



Grayscale 

Adjust your image to black and white, or varying degrees of grayscale. Filter ▸ Color Adjustment ▸ Grayscale


See also:  Black & White



Levels 

Control the black, white, and mid-tones of the layer. Filter ▸ Color Adjustment ▸ Levels


See also:  Levels



Filters in Acorn are non-destructive by default, meaning they do not permanently alter your image. To change the value of a filter later, just return to the filters window by double clicking the 'fx' next to your layer in the layers list. Your filters will save with your image for later editing if you choose the .acorn file format. If you wish to make a filter effect permanent, or destructive, select 'Flatten' in the filters window.  Once you have flattened a filter, you will no longer have the ability to modify it and the 'fx' will disappear from that layer in the layers list.  



See also:  Filters