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imh_bigthree
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\ApAssist
\: "imdoc:imh_bigthree" - general info portion of the IM documentation
\font topaz.font 8
\tc 1
\wr
\lj
\index "imdoc:imh_index/index"
\toc "imdoc:imh_toc/toc"
\help "imdoc:aa_help/help"
\node "bigthree"
\title "The Big Three Toolkits"
\prev ""
\next "areaselect"
The three major classes of functions that Imagemaster R/t can perform on an
image which actually \ts i modify \ts n the image are:
\nw \{ \lm 40
\{ \ra \image "Clips/Bullet2.pic" l 10 Image Processing \}
\{ \ra \image "Clips/Bullet2.pic" l 10 Composing two images together \}
\{ \ra \image "Clips/Bullet2.pic" l 10 Painting \}
\}
\wr
Image Processing is the easiest of these three to understand, because it
requires only one image to be loaded as the primary buffer. An image process
within Imagemaster R/t is anything that is done to an image that does not
require another image to perform. For instance, if you load an image and then
adjust its contrast, you have performed an image processing operation.
Image Composition is next. This type of operation requires the use of two
image buffers at a minimum; a primary image, which is the "subject" of the
composition and a secondary image, which is the source for the image being
composed \ts i into \ts n the primary image. Since composing two images
clearly requires two images, and since Imagemaster R/t can maintain more
than two images at one time, it would seem obvious that you need some way to
tell Imagemaster R/t \ts i which \ts n image is to be the source of the
composed image - and you do it by assigning the role of that image buffer as
the secondary buffer. All operations located under the \ts b Compose \ts n
panel require a secondary buffer. For this reason, you will find that the
Compose panel button is "ghosted" if no image buffer has been assigned the
role of the secondary.
Painting is very similar to Composition in Imagemaster R/t, in that two image
buffers are often involved. This is not always the case, however. Here is
why: When you paint on an image with a brush, you're doing something that is
conceptually similar to composition in that it involves two images - not just
one. Remember that in Imagemaster R/t, all brushes are images. When you use
an area fill tool, though, you (usually) are not using a brush, you're
creating color based on ranges. The exceptions to this are when you use an
area fill mode which does image tiling or "rubs-through" image information
from another buffer. Painting is the most complex environment in Imagemaster
R/t because of this multiple role usage. You'll find the following types of
operations in the Paint tools:
\nw \{ \lm 40
\{ \ra \image "Clips/Bullet2.pic" l 10 Process-like: Filling with color: Involves Primary only \}
\{ \ra \image "Clips/Bullet2.pic" l 10 Compose-like(a): Rubthru: Involves Primary & Secondary \}
\{ \ra \image "Clips/Bullet2.pic" l 10 Compose-like(b): Line draw: Involves Primary & Brush \}
\}
\wr
These three types of operations cover the vast majority of actions you will
take involving images within Imagemaster R/t. In order to learn how to work
with the software, you should begin by trying process operations.
\endnode
\node "areaselect"
\title "Basic Area Selection"
\prev "bigthree"
\next ""
The last thing we need to go over before you begin working with the tutorials
is \ts i area selection\ts n . Imagemaster R/t is a WYSIWYG program; that
stands for "What you see is what you get" in computer-graphics slang. it
means that you can work on any portion of the image and control your results
based on areas you select visually in some manner.
Imagemaster R/t has an extremely rich set of area-selection tools. We have
provided all the usual tools you find in typical paint and image processing
programs, and then added almost that many more again. You'll use just a few
of these tools most of the time; but when complex jobs come up, you'll be
glad the more esoteric area selections are available.
In order to perform any process on an image, you must first select the area
that you want the process to affect. True, you may want the process to affect
the whole thing, but you need to tell Imagemaster R/t that or it won't know
what to do. The issue is that since Imagemaster R/t \ts i can \ts n do things
like apply your effects to a particular sub-area of the image, you need to
tell it that the job this time is the whole shooting match.
Most of the area selection tools work in what will be a very familiar fashion
to you if you've ever used a paint program. For instance, if you are going to
select an elliptical area, then you'll choose "Ellipse", point at the center
of the area where you want the ellipse to be located, press the left mouse
button and drag the mouse away from that location. An elliptical outline will
appear, and when you release the left mouse button, the process will be
applied to that area.
There's a \ts i very \ts n handy little trick you should know about right
from the beginning that works with ellipses, rectangles and "custom shapes".
If you are in the process of dragging the mouse to size the area, you can at
any time press the \ts i right \ts n mouse button to reposition the entire
area, even while you are sizing it. This useful act makes positioning your
area selections considerably more precise.
\endnode