User Guide

Canvas 12 User Guide
Bevel dialog box
Direction Direction of the light source can be entered by a numeric value, slider
bar, or preview handle.
Elevation Elevation of light source can be entered by a numeric value or slider bar.
Brightness Brightness of light source can be entered by a numeric value or slider
bar.
Bevel Width Bevel width can be entered by a numeric value or slider bar.
Edge Smoothness Edge Smoothness can be entered by a numeric value or slider bar.
Corner Smoothness Corner Smoothness can be entered by a numeric value or slider bar.
Using the High Pass, Maximum, and Minimum filters
This section describes how you can create selections in alpha channels and resize bright areas in
color channels. Isolate areas in an image using the High Pass filter and Threshold command. You can
use the Maximum and Minimum filters to spread color areas you might need to trap for commercial
printing.
Isolating areas using the High Pass filter
The High Pass filter isolates high contrast edges in an image by removing low contrast detail. The
filter makes pixels located in low contrast areas gray. In color images, the High Pass filter outlines
high contrast edges in color. Otherwise, it outlines these edges in dark gray. This command doesn’t
work with paint objects in Black & White mode, and Indexed mode.
To apply the High Pass filter:
1. Select one or more paint objects to adjust all the images. Select an area in one image in edit
mode to adjust the selected area only. If you don’t make a selection, the entire image in edit
mode is affected.
2. Choose Image | Filter | Other | High Pass or use the Filter menu in the Properties bar.
3. Enter a radius from 0.1 to 250.0 pixels.
To retain more of the original image surrounding high contrast edges:
Enter a high number. If you enter a low number, the filter makes more of the image gray.
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