Glossary | 553
mask modes
Mask tool operation modes that you must choose before you create or fine-tune a mask and its editable area. There are four mask modes:
Normal, Additive, Subtractive, and XOR. The Normal mode (default) lets you select an area in an image. The Additive mode lets you expand
the editable regions by selecting multiple areas in an image. The Subtractive mode lets you reduce the editable regions by removing areas
from a selection. The XOR mode lets you select multiple areas in an image. If areas overlap, the overlapping regions are excluded from the
editable area and added to the protected area.
merge mode
An editing state that determines how the selected paint, object, or fill color combines with other colors in the image.
micro nudge
To move an object in small increments.
See also nudge and super nudge.
moiré pattern
The visual effect of radiating curves created by superimposing two regular patterns. For example, a moiré pattern can result from
overlapping two halftone screens of different angles, dot spacing, and dot size. Moiré patterns are the undesirable result of rescreening an
image with a different halftone screen or with the same halftone screen on an angle different from the original.
mosaic
The decorative artwork made by arranging small pieces of variously colored material to form pictures or patterns.
multichannel
A color mode that displays images by using multiple color channels, each comprising 256 shades of gray. When you convert an RGB color
image to the multichannel color mode, the individual color channels (red [R], green [G], and blue [B]) are converted to grayscale information
that reflects the color values of the pixels in each channel.
multitasking
An option that can improve the overall performance of an application by optimizing how the CPU executes tasks.
N
NCSA (National Center for Supercomputing Applications)
NCSA is a server system. If you are creating an image map to be displayed on the web, you need to know the system your server uses,
because different codes are used in the map files. Contact your server administrator to find out which system your server uses.
nodes
The square points at each end of a line or curve segment. You can change the shape of a line or curve by dragging one or more of its nodes.
noise
In bitmap editing, random pixels on the surface of a bitmap, resembling static on a television screen.
NTSC (National Television Standards Committee)
A video color filter that is commonly used to define the gamut of colors supported by television monitors in North America.
nudge
To move an object in increments.
See also micro nudge and super nudge.
O
object (Corel PHOTO-PAINT)
An independent bitmap that is layered above the background image. Changes applied to objects do not affect the underlying image.
opacity
The quality of an object that makes it difficult to see through. If an object is 100 percent opaque, you cannot see through it. Opacity levels
under 100 percent increase the transparency of objects.
