The image in Fig. 4.22 on the right-hand side shows the result of decimation 3 of the image on
the left-hand side.
Figure 4.22: Image example of decimation 3
An example of a high-speed measurement of the elongation of an injection needle is given in
Fig. 4.23. In this application the height information is less important than the width
information. Applying decimation 2 on the original image on the left-hand side doubles the
resulting frame rate.
4 O I w i t h o u t d e c i m a t i o n
R O I w i t h d e c i m a t i o n
Figure 4.23: Example of decimation 2 on image of injection needle
.
4.3 Reduction of Image Size
41