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- =============================================================================
- README file for the example files watch.xxx
- =============================================================================
-
-
- Description: This network is an example of using neural networks
- ============ for tasks of image processing.
-
- The network performs a 3x3 image convolution. The task was to detect
- edges like the sobel operator does in conventional immage processing.
-
-
- Pattern-Files: watch.pat
- ==============
-
- The pattern file watch.pat contains one single pattern pair which
- consists of two images: The input pattern represents an image of size
- 171x223 and the output pattern represents an image of size 169x221.
- This is an example for a pattern file with two variable dimensions.
- However, since there is only one pattern pair there is in fact no real
- variety in size between different patterns. SNNS is able to cut small
- parts out of variable sized patterns and to feed them into the network
- during learning and test (see Hints:)
-
- For easier understanding the two original images (input and output
- image) are included in the SNNS distribution: watch_orig.pgm is a pgm
- image file which shows a watch. watch_edge.pgm is the corresponding
- edge image. You need a standard image viewer (like xv) to view these
- images.
-
-
- Network-Files: watch.net
- ==============
-
- The network contains a trained network file with the following topology:
- 9 input neurons (organized as 3x3 input mask)
- 4 hidden neurons
- 1 output neuron
-
-
- Config-Files: watch.cfg
- =============
-
- This network uses one 2D display in its standard configuration.
-
-
- Hints:
- ======
-
- To use this network and pattern file you need to define a sub pattern
- scheme with the SNNS remote panel: You need to tell SNNS how to cut
- sub patterns out of the image patterns. Open the sub pattern panel and
- insert the following values:
-
- Input Output
- Size Step Size Step
- dim 1: 3 5 1 5
- dim 2: 3 5 1 5
-
- You need to define a 3x3 input size since the network is also of these
- dimensions. The step size of 5 is recommended to avoid long training
- cycles during experimentation. In any case you should define equal
- step sizes for the input and the output part of one dimension.
- Otherwise the cut output sub pattern does not correspomd to the input
- sub pattern and the network will not learn.
-
- For more information about sub pattern handling please refer to the
- user manual.
-
-
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- End of README file
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-