User Guide

Canvas 12 User Guide
Auto Trace settings
Input The Input section contains information about the image being traced.
Channels: Depending on the image type, you can select All Channels or
a specific color Channel from the menu. If the image contains only one
color channel, like grayscale or black & white, the Channel option and
menu is disabled.
Blur: Use the slider to apply a blur radius to the input image. Blurring
removes noise.
Threshold: This slider is only enabled when the input image is
grayscale or color and the output result is black & white. The threshold,
in this case, modifies the intermediate black & white image used to
create the vector (traced) objects.
Resolution: This slider adjusts the resolution of the input image. The
input image can be traced at its original resolution or at an adjusted one.
The Intermediate Preview indicates the image used for tracing after
applying the blur or threshold changes, if applicable.
Output Output section
Mode: Select either Black & White, Grayscale, or Color for the output
tracing.
Trace: Select either Fill, Stroke, or Fill+Stroke. The Fill option creates
filled outlines. The Stroke option is only available when the mode is set to
Black & White. Stroke means that centerlines with an approximate width
are created rather than outlines. With the Fill+Stroke option, a mixture
of filled vector objects and strokes is made. Strokes are created
depending on the values for Max Stroke Width and Min Stroke Length.
Ignore area less than: This option works as a despeckle filter. If
isolated pixels or groups of pixels exist in the input image, they will be
ignored, instead of creating vector objects from them.
Gray Levels: This slider is only enabled when the output is gray or
color. When the output is gray, the level value defines the number of
gray levels in the intermediate preview and in resulting vector object.
When the output is color, the slider controls how well the details in the
image are distinguished. A high value provides better distinction.
Optimize curves: This option reduces the number of points in the
curve, without drastically affecting the shape. Optimize is disabled if
Make polygons is enabled.
460