8 Preprocessing
About1 Introduction2 Image Recognition3 TransApplet4 API5 Interface6 Input7 Image Display8 Preprocessing9 Processing10 Normalization11 Parameter Class12 Image Signatures13 Unsupervised Filters14 BioFilters15 NeuralFilters16 Dynamic Library17 NeuralNet Filter18 Parameters19 Input Options20 Database Input21 Video Input22  Live Video Input23  Counting & Tracking24  Counting 25  Batch Job26 ImageFinder for DOS27 ImageHunt 28 Support Packages

8.1 Filter 
8.2 API 
8.3 Parameters 
8.4 Border Areas 
8.5 Mask 
8.6 Speed Up 
8.7 Skip Empty Border 
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8.   Image Preprocessing

Attrasoft ImageFinder learns an image in a way similar to human eyes:

  •    Ignore the background;
  •    Focus on an object in the image.

The Image Preprocessing in this chapter and the Image Processing in the next chapter prepare the image for the ImageFinder. The Image Processing process is not unique; there are many options available. Some are better than others.

The principle of choosing the Image Preprocessing and Image Processing filters is to make the sample objects stand out, otherwise change the options.

Image Preprocessing has the following functions:

  •    Cut off the border areas;
  •    Impose a mask;
  •    Speed up the computation;
  •    Skip the empty border areas;

If you do not have a good Image Preprocessing/Processing filter in the off-the-shelf ImageFinder, a customized filter has to be built.

Do not make too many things stand out, i.e. as long as the area of interest stands out, the rest should show as little as possible.

Figure 8.1 Chapter 8 project.

Figure 8.2 Image Preprocessing Parameters.


[Home][About][1 Introduction][2 Image Recognition][3 TransApplet][4 API][5 Interface][6 Input][7 Image Display][8 Preprocessing][9 Processing][10 Normalization][11 Parameter Class][12 Image Signatures][13 Unsupervised Filters][14 BioFilters][15 NeuralFilters][16 Dynamic Library][17 NeuralNet Filter][18 Parameters][19 Input Options][20 Database Input][21 Video Input][22 Live Video Input][23 Counting & Tracking][24 Counting ][25 Batch Job][26 ImageFinder for DOS][27 ImageHunt ][28 Support Packages]

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