Operation Manual

700 | Corel DESIGNER X7 User Guide
B
base color
The color of the object that appears under a transparency. The base color and the color of the transparency combine in various ways
depending on the merge mode you apply to the transparency.
baseline
An invisible line upon which text characters sit.
baseline grid
A series of evenly spaced horizontal lines that follow the pattern of a ruled notebook and help align text and objects.
baseline shift
The process of moving text characters above or below the baseline.
Bézier line
A straight or curved line made up of segments connected by nodes. Each node has control handles that allow the shape of the line to be
modified.
bit depth
The number of binary bits that define the shade or color of each pixel in a bitmap. For example, a pixel in a black-and-white image has a
depth of 1 bit, because it can only be black or white. The number of color values that a given bit depth can produce is equal to 2 to the
power of the bit depth. For example, a bit depth of 1 can produce two color values (2
1
=2), and a bit depth of 2 can produce 4 color values
(2
2
= 4).
Bit depth ranges between 1 and 64 bits per pixel (bpp) and determines the color depth of an image.
bitmap
An image composed of grids of pixels or dots.
See also vector graphic.
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.
blend
An effect created by transforming one object into another through a progression of shapes and colors.
bookmark
An indicator for marking an address on the Internet.
bounding box
The invisible box indicated by the eight selection handles surrounding a selected object.