EasyFindLearn

Support
Required licenses	EasyFind
Recommended images	Any gray level image from the folder Sample Images/EasyFind
Location	Matching and Measurement/EasyFindLearn and Console samples/Matching and Measurement in Python

Purpose

EasyFind learns then finds patterns inside images.

This sample program demonstrates how to:

• Load an image.

• Move and size the region of interest to define the pattern.

• Learn the pattern in the region of interest.

• Change the tolerances using the Tolerances menu.

• Find the pattern using the Find menu.

Code highlights

1. Define a pattern finder object that will serve as a vehicle for the search parameters and to learn the search pattern.

   EPatternFinder patternfinder;
   

2. Modify the parameters of the pattern finder (in this example, an angular tolerance).

   patternfinder.SetAngleTolerance(tol);
   

3. Learn a pattern.

   patternfinder.Learn(pattern);
   

4. Find the pattern that you previously learned inside the image. Retrieve the results as a vector of EFoundPatterns.

   std::vector<EFoundPattern> foundPatterns = patternfinder.Find(image);
   

5. Retrieve the attributes of the found pattern (in this example, the angle inside the image).

   foundPatterns[n].GetAngle();
   

6. Draw a found pattern in the same reference frame as the search image.

foundPatterns[n].Draw();