register.cpp
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright 2012 The MITRE Corporation *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <opencv2/imgproc/imgproc.hpp>
#include <openbr_plugin.h>
#include "core/opencvutils.h"
using namespace cv;
namespace br
{
/*!
* \ingroup transforms
* \brief Performs a two or three point registration.
* \author Josh Klontz \cite jklontz
*/
class AffineTransform : public UntrainableTransform
{
Q_OBJECT
Q_PROPERTY(int width READ get_width WRITE set_width RESET reset_width STORED false)
Q_PROPERTY(int height READ get_height WRITE set_height RESET reset_height STORED false)
Q_PROPERTY(float x1 READ get_x1 WRITE set_x1 RESET reset_x1 STORED false)
Q_PROPERTY(float y1 READ get_y1 WRITE set_y1 RESET reset_y1 STORED false)
Q_PROPERTY(float x2 READ get_x2 WRITE set_x2 RESET reset_x2 STORED false)
Q_PROPERTY(float y2 READ get_y2 WRITE set_y2 RESET reset_y2 STORED false)
Q_PROPERTY(float x3 READ get_x3 WRITE set_x3 RESET reset_x3 STORED false)
Q_PROPERTY(float y3 READ get_y3 WRITE set_y3 RESET reset_y3 STORED false)
BR_PROPERTY(int, width, 64)
BR_PROPERTY(int, height, 64)
BR_PROPERTY(float, x1, 0)
BR_PROPERTY(float, y1, 0)
BR_PROPERTY(float, x2, -1)
BR_PROPERTY(float, y2, -1)
BR_PROPERTY(float, x3, -1)
BR_PROPERTY(float, y3, -1)
static Point2f getThirdAffinePoint(const Point2f &a, const Point2f &b)
{
float dx = b.x - a.x;
float dy = b.y - a.y;
return Point2f(a.x - dy, a.y + dx);
}
void project(const Template &src, Template &dst) const
{
const bool twoPoints = ((x3 == -1) || (y3 == -1));
Point2f dstPoints[3];
dstPoints[0] = Point2f(x1*width, y1*height);
dstPoints[1] = Point2f((x2 == -1 ? 1 - x1 : x2)*width, (y2 == -1 ? y1 : y2)*height);
if (twoPoints) dstPoints[2] = getThirdAffinePoint(dstPoints[0], dstPoints[1]);
else dstPoints[2] = Point2f(x3*width, y3*height);
Point2f srcPoints[3];
if (src.file.contains("Affine_0") &&
src.file.contains("Affine_1") &&
(src.file.contains("Affine_2") || twoPoints)) {
srcPoints[0] = OpenCVUtils::toPoint(src.file.get<QPointF>("Affine_0"));
srcPoints[1] = OpenCVUtils::toPoint(src.file.get<QPointF>("Affine_1"));
if (!twoPoints) srcPoints[2] = OpenCVUtils::toPoint(src.file.get<QPointF>("Affine_2"));
} else {
const QList<Point2f> landmarks = OpenCVUtils::toPoints(src.file.points());
if ((landmarks.size() < 2) || (!twoPoints && (landmarks.size() < 3))) {
resize(src, dst, Size(width, height));
return;
} else {
srcPoints[0] = landmarks[0];
srcPoints[1] = landmarks[1];
if (!twoPoints) srcPoints[2] = landmarks[2];
dst.file.set("Affine_0", OpenCVUtils::fromPoint(landmarks[0]));
dst.file.set("Affine_1", OpenCVUtils::fromPoint(landmarks[1]));
if (!twoPoints) dst.file.set("Affine_2", OpenCVUtils::fromPoint(landmarks[2]));
}
}
if (twoPoints) srcPoints[2] = getThirdAffinePoint(srcPoints[0], srcPoints[1]);
warpAffine(src, dst, getAffineTransform(srcPoints, dstPoints), Size(width, height));
}
};
BR_REGISTER(Transform, AffineTransform)
/*!
* \ingroup transforms
* \brief Flips the image about an axis.
* \author Josh Klontz \cite jklontz
*/
class FlipTransform : public UntrainableTransform
{
Q_OBJECT
Q_ENUMS(Axis)
Q_PROPERTY(Axis axis READ get_axis WRITE set_axis RESET reset_axis STORED false)
public:
/*!< */
enum Axis { X = 0,
Y = 1,
Both = -1 };
private:
BR_PROPERTY(Axis, axis, Y)
void project(const Template &src, Template &dst) const
{
flip(src, dst, axis);
}
};
BR_REGISTER(Transform, FlipTransform)
} // namespace br
#include "register.moc"