TargetDetector Class Reference

Vision processing/target acquisition code. More...

#include <TargetDetector.h>

Public Member Functions
	TargetDetector (Mat &_image)
	TargetDetector constructor. More...
virtual	~TargetDetector ()
	TargetDetector destructor.
void	prepareImage ()
	Prepare/threshold input frame. More...
void	findContours ()
	Cleans old data and prepares contour shells via OpenCV. More...
bool	filterContours ()
	Filter contours to find shells that match the target. More...
LineResult	getContours ()
	Process and retrieve resulting contours. More...

Public Attributes
int	thresholdVal
	Threshold value for cuttoff when running prepareImage. More...

Detailed Description

Vision processing/target acquisition code.

Order of calling:

1. prepareImage()
2. findContours()
3. filterContours()
4. getContours()

Constructor & Destructor Documentation

TargetDetector::TargetDetector

(

Mat &

_image

)

TargetDetector constructor.

Parameters

_image

Reference to source cv::Mat for processing

Member Function Documentation

bool TargetDetector::filterContours

(

)

Filter contours to find shells that match the target.

Filters through the found contours, leaving only the contours that match the target.

Returns

bool Whether or not you will be able to reliably get contours, according to the number of shells found.

void TargetDetector::findContours

(

)

Cleans old data and prepares contour shells via OpenCV.

Clears data from previous the frame, finds contours in the binary image and decimate the found shells.

LineResult TargetDetector::getContours

(

)

Process and retrieve resulting contours.

Processes filtered contours, returning more specific information about the found target.

Returns

LineResult contour data

Note

If this was run already on the current frame, it will instantly return the previous result.

Warning

If there was an issue with the frame, it will return instantly with LineResult::isProcessed being false, and all other values being old or random data.
In this case, you MUST close and attempt to re-open the camera or feed to be able to get a good frame again.
You will NOT be able to get any more data otherwise.

void TargetDetector::prepareImage

(

)

Prepare/threshold input frame.

Note

Must be called before running other functions.

Member Data Documentation

int TargetDetector::thresholdVal

Threshold value for cuttoff when running prepareImage.

Set by setThreshold().

Note

Defaults to 234.

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The documentation for this class was generated from the following files:

• TargetDetector.h
• TargetDetector.cpp