Mask

Child-classe, applies a mask to the input matrix. More...

#include <Mask.h>

Inheritance diagram for Mask:

Public Member Functions
	Mask (const cv::String name)
	Constructor. More...
	Mask (const cv::String name, HSV_MASK_VALUES hsv)
	Constructor. More...
void	setAction (void *data)
	sets the output of the action More...
void	showWindow ()
	shows the action to the user More...
Public Member Functions inherited from PipeLineAction
	PipeLineAction ()
	Default constructor.
	PipeLineAction (const cv::String name)
	Constructor. More...
virtual void *	getAction ()
	gets the output of the action More...
void	hideWindow ()
	hides the action to the user More...
cv::String	getName ()
	gets the pipeline action name More...

Static Private Member Functions
static void	onLowHTreshTrackbar (int, void *data)
	Handles the change trackbar event for the low hue trackbar. More...
static void	onHighHTreshTrackbar (int, void *data)
	Handles the change trackbar event for the high hue trackbar. More...
static void	onLowSTreshTrackbar (int, void *data)
	Handles the change trackbar event for the low saturation trackbar. More...
static void	onHighSTreshTrackbar (int, void *data)
	Handles the change trackbar event for the high saturation trackbar. More...
static void	onLowVTreshTrackbar (int, void *data)
	Handles the change trackbar event for the low value trackbar. More...
static void	onHighVTreshTrackbar (int, void *data)
	Handles the change trackbar event for the high value trackbar. More...

Private Attributes
const int	maxValueH = 180
	maximum value of the hue trackbar
const int	maxValue = 255
	maximum value of the saturation and value trackbars
const int	maxValuePixel = 10
	maximum value of the associated trackbar
int	lowH
	current value of the low hue trackbar
int	lowS
	current value of the low saturation trackbar
int	lowV
	current value of the low value trackbar
int	highH
	current value of the high hue trackbar
int	highS
	current value of the high saturation trackbar
int	highV
	current value of the high value trackbar
int	pixelSize
	current value of the erode and dilate size, based on the pixelsize trackbar position

Additional Inherited Members
Protected Attributes inherited from PipeLineAction
cv::Mat	img
	Matrix which holds the image of the action.
bool	show
	Show action flag.
cv::String	name
	(screen)name of the pipeline action

Detailed Description

Child-classe, applies a mask to the input matrix.

Constructor & Destructor Documentation

Mask() [1/2]

Mask::Mask

(

const cv::String

name

)

Constructor.

Parameters

name	(screen)name of mask action

                              : PipeLineAction(name)
{
    lowH = 0, lowS = 0, lowV = 0;
    highH = maxValueH, highS = maxValue, highV = maxValue;
 
    pixelSize = 2;
}

Mask() [2/2]

Mask::Mask	(	const cv::String	name,
		HSV_MASK_VALUES	hsv
	)

Constructor.

Parameters

name	(screen)name of mask action
hsv	struct containing the HGV mask values

                                                         : PipeLineAction(name)
{
    this->lowH = hsvValues.lowH;
    this->lowS = hsvValues.lowS;
    this->lowV = hsvValues.lowV;
    this->highH = hsvValues.highH;
    this->highS = hsvValues.highS;
    this->highV = hsvValues.highV;
 
    pixelSize = 2;
}

Member Function Documentation

setAction()

void Mask::setAction ( void *  data )

virtual

sets the output of the action

in this case: applying a mask to the input matrix. The mask is based on the trackbar values.

Parameters

data	pointer to the input data, should be a OpenCV matrix

Implements PipeLineAction.

{
    Mat* d = static_cast<Mat*>(data);
    inRange(*d,
        Scalar(lowH, lowS, lowV),
        Scalar(highH, highS, highV),
        img);
    erode(img, img, pixelSize);
    dilate(img, img, pixelSize);
}

showWindow()

void Mask::showWindow ( )

virtual

shows the action to the user

uses cv::imshow(). The name of the window is the name of the pipeline action. Trackbars are added to set max and min values of

• Hue
• Saturation
• Value

Implements PipeLineAction.

{
    if (!show) {
        namedWindow(name);
        createTrackbar("Low H", name, &lowH, maxValueH, onLowHTreshTrackbar, this);
        createTrackbar("High H", name, &highH, maxValueH, onHighHTreshTrackbar, this);
        createTrackbar("Low S", name, &lowS, maxValue, onLowSTreshTrackbar, this);
        createTrackbar("High S", name, &highS, maxValue, onHighSTreshTrackbar, this);
        createTrackbar("Low V", name, &lowV, maxValue, onLowVTreshTrackbar, this);
        createTrackbar("High V", name, &highV, maxValue, onHighVTreshTrackbar, this);
        createTrackbar("Pixel size", name, &pixelSize, maxValuePixel, onHighVTreshTrackbar, this);
        show = true;
    }
    imshow(name, img);
}

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onLowHTreshTrackbar()

void Mask::onLowHTreshTrackbar ( int  , void *  data  )

staticprivate

Handles the change trackbar event for the low hue trackbar.

sets the trackbar position bepending on the min of the high and low value

Parameters

data	pointer to the mask object associated with the trackbar

{
    Mask* m = static_cast<Mask*>(data);
    m->lowH = min(m->highH - 1, m->lowH);
    setTrackbarPos("Low H", m->name, m->lowH);
}

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onHighHTreshTrackbar()

void Mask::onHighHTreshTrackbar ( int  , void *  data  )

staticprivate

Handles the change trackbar event for the high hue trackbar.

sets the trackbar position bepending on the min of the high and low value

Parameters

data	pointer to the mask object associated with the trackbar

{
    Mask* m = static_cast<Mask*>(data);
    m->highH = max(m->highH, m->lowH + 1);
    setTrackbarPos("High H", m->name, m->highH);
}

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onLowSTreshTrackbar()

void Mask::onLowSTreshTrackbar ( int  , void *  data  )

staticprivate

Handles the change trackbar event for the low saturation trackbar.

sets the trackbar position bepending on the min of the high and low value

Parameters

data	pointer to the mask object associated with the trackbar

{
    Mask* m = static_cast<Mask*>(data);
    m->lowS = min(m->highS - 1, m->lowS);
    setTrackbarPos("Low S", m->name, m->lowS);
}

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onHighSTreshTrackbar()

void Mask::onHighSTreshTrackbar ( int  , void *  data  )

staticprivate

Handles the change trackbar event for the high saturation trackbar.

sets the trackbar position bepending on the min of the high and low value

Parameters

data	pointer to the mask object associated with the trackbar

{
    Mask* m = static_cast<Mask*>(data);
    m->highS = max(m->highS, m->lowS + 1);
    setTrackbarPos("High S", m->name, m->highS);
}

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onLowVTreshTrackbar()

void Mask::onLowVTreshTrackbar ( int  , void *  data  )

staticprivate

Handles the change trackbar event for the low value trackbar.

sets the trackbar position bepending on the min of the high and low value

Parameters

data	pointer to the mask object associated with the trackbar

{
    Mask* m = static_cast<Mask*>(data);
    m->lowV = min(m->highV - 1, m->lowV);
    setTrackbarPos("Low V", m->name, m->lowV);
}

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onHighVTreshTrackbar()

void Mask::onHighVTreshTrackbar ( int  , void *  data  )

staticprivate

Handles the change trackbar event for the high value trackbar.

sets the trackbar position bepending on the min of the high and low value

Parameters

data	pointer to the mask object associated with the trackbar

{
    Mask* m = static_cast<Mask*>(data);
    m->highV = max(m->highV, m->lowV + 1);
    setTrackbarPos("High V", m->name, m->highV);
}

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