Image Processing Reference
In-Depth Information
Fig. 11.5 Rank filters
Fig. 11.6 Using object motion to create visual effects
11.1.2 Neighborhood Processing
The different neighborhood processing methods can sometimes also result in nice
visual effects. In Fig. 11.5 the effects of the two first rank filters listed in Sect. 5.1.1
are shown.
11.1.3 Motion
The image differencing method described in Sect. 8.4 is a simple yet efficient way
of creating visual effects in video. The ghost objects illustrated in Fig. 8.6 are in
general unwanted in video processing, but when it comes to creating an interesting
visual effect they can be quite interesting. Furthermore, if the difference image is
not thresholded, the “ghosty” appearance is even more profound.
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