Editing / Image Composing III
Building the Cantata Workspace
The ruler image file is: ruler.viff.
Display it as an aid in developing the workspace. The
image dimensions are 512 x 14. The major tics and numbers are 7 pixels high.
To add flexibility to your visual program use the "Variables" functionality.
Use WIDTH as a variable to control the width of a new image to be
extracted from the original.
The operators required to follow the steps described in the previous
page are:
-
Extract Create a Region Of Interest (ROI).
-
Inset Combine two images by pasting the second image such that its
top left corner pixel goes to the inset coordinates of the first image.
-
Flip
Reflects the data along the specified coordinate.
-
Switch Axis Swaps the coordinates of the image.
Exercises
- Create an encapsulate workspace operator, so that you can use this
as a cantata operator.
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