To apply a vector mask to a paint object 1 Select the duotone paint object. 2 Choose Image > Mode > Grayscale. 3 Canvas asks whether you would like to discard the duotone information from the image. Click OK. The image is now a gray- scale. 4 To use the Transparency palette, select the Opacity slider in the Toolbox and drag the slider away. The Transparency palette opens. You can also choose Window > Palettes > Transparency. 5 In the Mask pop-up menu, select Elliptical. Vector mask edit- ing handles appear on the paint object. 6 Drag the handles to adjust the position and size of the vector mask. 7 Add a node (a small circle) by right-clicking (Windows) or holding the control-key while clicking (Mac) on the horizontal vec- tor which joins the inner box (the area of 100% opacity) with the objects bounding box. An opacity slide appears. 8 Adjust the slide to 0% opacity. 9 Drag the node to adjust the location of 0% opacity until you achieve an effect that you like. If the transparency handles disappear, select the object and click Edit in the Transparency palette. 10   When you finish adjusting the mask, press Esc to end edit mode. Node used to set opacity level Completed vignette Handles appear in edit mode
Canvas 8 Help: Introduction to image editing (6 of 12)                                              Page #40