546 | Corel PHOTO-PAINT X8 User Guide
bitmap
An image composed of grids of pixels or dots.
See also vector graphic.
bitmap fill
A fill created from any bitmap.
black point
A brightness value that is considered black in a bitmap image. In Corel PHOTO-PAINT, you can set the black point to improve the contrast of
an image. For example, in a histogram of an image, with a brightness scale of 0 (dark) to 255 (light), if you set the black point at 5, all pixels
with a value greater than 5 are converted to black.
black-and-white color mode
A 1-bit color mode that stores images as two solid colors — black and white — with no gradations. This color mode is useful for line art and
simple graphics. To create a black-and-white photo effect, you can use the grayscale color mode.
See also grayscale.
bleed
The part of the printed image that extends beyond the edge of the page. The bleed ensures that the final image goes right to the edge of
the paper after binding and trimming.
bounding box
The invisible box indicated by the eight selection handles surrounding a selected object.
brightness
The amount of light that is transmitted or reflected from a given pixel. In the HSB color mode, brightness is a measure of how much white a
color contains. For example, a brightness value of 0 produces black (or shadow in photos), and a brightness value of 255 produces white (or
highlight in photos).
C
CERN
CERN (Conseil Europeén pour la Recherche Nucléaire) is the scientific laboratory in which the World Wide Web was developed. CERN is also
one of the World Wide Web server systems. Contact your server administrator to find out which system your server uses.
channel
An 8-bit grayscale image that stores color or mask information for another image. There are two types of channels: color and mask. Images
have one color channel for each component of the color model on which they are based. In addition, some images use spot color channels.
Each channel contains the color information for that component. Mask (alpha) channels store masks that you create for your images, and
they can be saved with images in formats that support mask information, such as Corel PHOTO-PAINT (CPT) format.
child object
An object whose image elements are inserted into the shape of another object, called a parent object. The child object and parent object are
called a clipping group. The child object must be on a layer above the parent object.
choke
In commercial printing, a form of trapping created by extending the background object into the foreground object.
client/server image map
A rarely used image map type that includes code for both client-side and server-side image maps. This type of image map automatically
defaults to the user’s web browser for image map processing. If the browser does not support image maps, the server uses the external map
file to process information. Currently, most web browsers support image maps, so client-side image maps are more common.
client-side image map
This common image map type does not depend on the server to process the map information.
