User Guide

Canvas 12 User Guide
Screen rendering
Use the Screen Rendering options to setup the way images are rendered.
Vector quality The options in this menu affect the entire screen display in Canvas.
Draft: Provides the fastest screen display by drawing vector objects
less smoothly. Choosing this option can increase display speed by
300%.
Normal: Provides fast screen display and draws smooth vector objects.
This is the recommended setting and is selected by default.
Anti-aliased: Significantly smooths all objects on screen, including text
and vector objects by anti-aliasing their edges. However, this anti-
aliasing slows the display compared to Draft or Normal settings. The
effect of the anti-aliased option is independent of the anti-aliased option
on the Display tab. If either option is selected, text is anti-aliased and
vice-versa.
Anti-aliased is especially useful when you create screen shots or
display slide shows on screen.
Image When activated, this feature will significantly enhance the visual quality
of scaled images. Interpolation takes place whenever an image needs to
be reduced or downsampled. In other words, whenever the number of
pixels being displayed is less than the available number of pixels at the
destination. An example of downsampling would be when a 300 ppi
image is set to be displayed at 100%.
Interpolation is a mathematical procedure which estimates
values of a function at positions between listed or given values.
Nearest Neighbor: will remove some pixel information from your
image; however, if used, this setting will be the fastest. Nearest
Neighbor setting merely gathers pixel data from the “Nearest Neighbor”
of each pixel, therefore Interpolation does not actually occur.
Bilinear: Uses a bilinear interpolation algorithm during downsampling.
This setting can be used if you work with line art and may be applied to
some photographic images.
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