Apple Shake 4 - Manual (Page 679)

Chapter 23 Color Correction 679
Parameters
This node displays the following controls in the Parameters tab:
width
The width of the Histogram. You probably want to set the width to 256 on an 8-bit
image for one-to-one correspondence.
height
The height of the Histogram. You probably want to set the height to 256 on an 8-bit
image for one-to-one correspondence.
ignore
Tells Shake to ignore black or white pixels. For example, if you have a small element on
a large black background, your histogram is skewed toward black. Disable black
consideration to better analyze the image.
• 0 = No ignore.
• 1 = Ignore values of 0.
• 2 = Ignore values of 1.
• 3 = Ignore values of 0 and 1.
maxPerChannel
This determines how the graph channels relate to each other. If you have a large red
component and a small blue component, the blue is very short, making it difficult to
see. Toggle this to view the blue channel in relation to itself, rather than the red.
• 0 = Distribution of values relative to RGB total.
• 1 = Distribution of values relative to its own channel.