Serif PhotoPlus X3 ECD518624M Manual De Usuario
Los códigos de productos
ECD518624M
Manipulating Images
61
Extracting part of an image
The
button on the Photo Studio toolbar makes light work of
isolating a subject from its background (or vice versa).
You simply brush an outline around the edges of a region you want to extract
from the rest of the image, then mark a "foreground" area to be retained—
usually inside the outline. PhotoPlus applies sophisticated edge detection within
usually inside the outline. PhotoPlus applies sophisticated edge detection within
the marked edge band, decides which pixels to keep, and turns the rest
transparent, with variable blending along the edge. In preview mode, you can
fine-tune and reapply the extraction settings, and manually touch up the image
fine-tune and reapply the extraction settings, and manually touch up the image
until the result is just right.
Instead of marking a foreground region, you can designate a specific "key" color
to which edge pixels can be compared. Similar pixels will be kept, and dissimilar
Instead of marking a foreground region, you can designate a specific "key" color
to which edge pixels can be compared. Similar pixels will be kept, and dissimilar
pixels discarded. (See PhotoPlus help for details).
Using channels
Every color photo that you use in PhotoPlus will have channels associated with
it. For the color mode RGB, the individual channels Red (R), Green (G) and Blue
(B) make up a composite RGB channel. Alternatively, channels can also be
(B) make up a composite RGB channel. Alternatively, channels can also be
separate, i.e. as their individual colors—Red, Green and Blue. Each channel
stores that particular color’s information which, when combined with the other
channels, brings about the full color image.
channels, brings about the full color image.
Within PhotoPlus, channels are treated as a color sub-set of the
active selected layer, whether this is a background, standard, shape
or text layer.