EasyFindLearn

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Required licenses

EasyFind

Recommended images

Any gray level image from the folder Sample Images\EasyFind

Location

[…]C:\Users\Public\Documents\Euresys\Open eVision 24.02\Sample Programs
\[LANGUAGE] samples\Matching and Measurement\EasyFindLearn

Purpose

EasyFind learns then finds patterns inside images.

This sample program demonstrates how to:

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Load an image.

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

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Learn the pattern in the region of interest.

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Change the tolerances using the Tolerances menu.

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Find the pattern using the Find menu.

Code highlights

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

EPatternFinder patternfinder;

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

patternfinder.SetAngleTolerance(tol);

Learn a pattern.

patternfinder.Learn(pattern);

Find the pattern that you previously learned inside the image.

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Retrieve the results as a vector of EFoundPatterns.

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

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

foundPatterns[n].GetAngle();

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

foundPatterns[n].Draw(…);