The width and height boxes show the size a paint object will become
if you change the resolution when Preserve Data is selected.
Preserve Proportions
This option links the Width and Height val-
ues so that changing one value changes the other and maintains the
original proportions of the paint object. Selecting Preserve Data also
selects this option. If you want to stretch a paint object in only one
direction, you must deselect Preserve Proportions.
To specify how Canvas approximates new pixels
When increasing image resolution, Canvas uses one of two methods
to calculate color values for the pixels it adds to an image. To change
the method, use the Preferences command.
Original 300 ppi
Resampled down to 150 ppi
150 ppi image with Unsharp
Mask filter applied
Amount = 80
Radius = 1.6
Threshold = 0
300 ppi image with Unsharp
Mask filter applied
Amount = 67
Radius = 1.6
Threshold = 0
150 ppi image resampled up
to 300 ppi
Resampling and
sharpening images
Resizing and resampling
causes images to appear
softer. However, you can
apply the Unsharp Mask filter
to bring soft images back
into focus. For more informa-
tion, see To apply the
Unsharp Mask filter on
page 34.702.