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+#X text 11 -499 Numeric Operators (numop): transform an image or video
+by applying a mathematical operation to each pixel value in the grid.
+;
+#X text 12 -445 To transform a grid (in this case an image) using numop
+\, it must first be given an argument (a number value) in order to
+affect a pixel value. The examples here show you the three methods
+that can be used to give the numop an argument.;
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+#X text 10 -618 GridFlow performs high level grid processing \; in
+other words its main function is the manipulation of images and video.
+There are several ways to madify images in GridFlow \, some are very
+basic while others are more advanced (and are saved for the intermediate
+tutorials.) In this section we will introduce some very basic functions
+of the numeric operator \, one of the most common methods used for
+image transformation.;
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+#X text 54 -282 this is a basic numop. GridFlow has its own set of
+numops that are applied to grids \, 3 dimensions \, on each channel.
+;
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+#X text 11 -672 2.4 Image manipulation;
+#X text 11 -644 2.4.3 Numop;
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+#X text 596 -461 <--- messages used as arguments;
+#X text 596 -486 <---;
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+#X text 13 -357 Example #1;
+#X text 12 -338 Shows you how to put an argument directly into the
+numeric operator object.;
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+#X text 496 -628 Example #2;
+#X text 506 -320 Example #3;
+#X text 497 -608 Demonstrates how to send the numop an argument using
+a message box. This method allows you to send the numop several different
+arguments.;
+#X text 507 -299 Introduces the use of the slider as a method to give
+the numop an argument. The slider allows you to easily scroll through
+a series of values.;
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