cOMS/Image/Kernel.h
2022-08-16 18:56:22 +02:00

83 lines
2.1 KiB
C++

/**
* Karaka
*
* @package Image
* @copyright Dennis Eichhorn
* @license OMS License 1.0
* @version 1.0.0
* @link https://karaka.app
*/
#ifndef IMAGE_KERNEL_H
#define IMAGE_KERNEL_H
#include <stdio.h>
#include <opencv2/opencv.hpp>
#include "ImageUtils.h"
#include "../Utils/MathUtils.h"
namespace Image {
const float KERNEL_RIDGE_1[3][3] = {
{0.0, -1.0, 0.0},
{-1.0, 4.0, -1.0},
{0.0, -1.0, 0.0}
};
const float KERNEL_RIDGE_2[3][3] = {
{-1.0, -1.0, -1.0},
{-1.0, 8.0, -1.0},
{-1.0, -1.0, -1.0}
};
const float KERNEL_SHARPEN[3][3] = {
{0.0, -1.0, 0.0},
{-1.0, 5.0, -1.0},
{0.0, -1.0, 0.0}
};
const float KERNEL_BOX_BLUR[3][3] = {
{1.0 / 9.0, 1.0 / 9.0, 1.0 / 9.0},
{1.0 / 9.0, 1.0 / 9.0, 1.0 / 9.0},
{1.0 / 9.0, 1.0 / 9.0, 1.0 / 9.0}
};
const float KERNEL_GAUSSUAN_BLUR_3[3][3] = {
{1.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0},
{2.0 / 16.0, 4.0 / 16.0, 2.0 / 16.0},
{1.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0}
};
const float KERNEL_EMBOSS[3][3] = {
{-2.0, -1.0, 0.0},
{-1.0, 1.0, 1.0},
{0.0, 1.0, 2.0}
};
const float KERNEL_UNSHARP_MASKING[5][5] = {
{-1.0 / 256.0, -4.0 / 256.0, -6.0 / 256.0, -4.0 / 256.0, -1.0 / 256.0},
{-4.0 / 256.0, -16.0 / 256.0, -24.0 / 256.0, -16.0 / 256.0, -4.0 / 256.0},
{-6.0 / 256.0, -24.0 / 256.0, 476.0 / 256.0, -24.0 / 256.0, -6.0 / 256.0},
{-4.0 / 256.0, -16.0 / 256.0, -24.0 / 256.0, -16.0 / 256.0, -4.0 / 256.0},
{-1.0 / 256.0, -4.0 / 256.0, -6.0 / 256.0, -4.0 / 256.0, -1.0 / 256.0},
};
class Kernel {
private:
public:
static
cv::Mat convolve(cv::Mat in, const float kernel[][3])
{
cv::Size dim = in.size();
cv::Mat out(in.size(), in.type());
cv::Mat mKernel(3, 3, CV_32F, (float *) kernel);
cv::filter2D(in, out, -1, mKernel);
return out;
}
};
}
#endif