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Glossary 193
Raster file A file of data that was scanned, processed or output
sequentially, bit by bit and line by line. Also known as a
bitmap.
Rasterization
The translation of vector information into bitmap information.
Bitmaps may also require a new rasterization to comply with
the screening parameters (dot shape, dot size) of the
imagesetter that will expose them on film. See also
RIP
and
RIPing
.
Register Fitting of two or more printing images or plates in exact
alignment with each other.
Register marks Crosses or other targets applied to original copy prior to
printing. Used for positioning films in register or for register of
two or more colors in process printing.
Relative Colorimetric
A rendering intent method in which colors that fall within the
output color space remain the same. Only colors that fall
outside are changed to the closest possible color within the
output color space.
When using this method, some closely related colors in the
input color space can be mapped to a single color in the
output color space. This reduces the number of colors in the
image.