Gaussian filter with libgil2 and cmlib

info.txt

1213 910
3
data/input/STA_2713.JPG
data/input/STB_2714.JPG
data/input/STC_2715.JPG

test_gauss_filter_cmlib.cpp

#include <cstdio>
#include <cstdlib>
#include <vector>
using namespace std;
#include <cmlib/image.h>
#include <cmlib/dip.h>
#include <cmlib/imageio/all.h>
#include <cmlib/imageio.h>
using namespace cmlib::image;
using namespace cmlib::dip;

void readImages(vector<ByteImage3> *originalImages) {
    FILE *f = fopen("data/input/info.txt", "r");
    printf("Reading input image info ...\n");
    int nImages, width, height;
    fscanf(f, "%d%d%d", &width, &height, &nImages);
    printf("\t# of input images: %d\n\tsize: %d x %d\n", nImages, width, height);
    for(int i = 0; i < nImages; i++) {
        char name[50];
        fscanf(f, "%s", name);
        printf("\tinput image: %s\n", name);
        ByteImage3 img(width, height);
        read(img, name);
        originalImages->push_back(img);
    }
    fclose(f);
}

void gaussianFiltering(vector<FloatImage1> *filterImages, const vector<FloatImage1> &grayImages)
{
    GaussianFilter<FloatImage1> gaussian(1.5, 1.5);
    for(int n = 0; n < grayImages.size(); n++)
    {
        FloatImage1 img(grayImages[n].width(), grayImages[n].height());
        gaussian(grayImages[n], img);
        filterImages->push_back(img);
    }
}


int main(int argc, char* argv[]) {
    printf("Reading input files ...\n");
    vector<ByteImage3> originalImages;
    readImages(&originalImages);

    printf("Produce gray-level input images ...\n");
    vector<FloatImage1> grayImages;
    for(int i = 0; i < originalImages.size(); ++i) {
        FloatImage1 gray = Convert<FloatImage1>()(originalImages[i]);
        grayImages.push_back(gray);
    }

    printf("Performing Gaussian filtering ...\n");
    vector<FloatImage1> filterImages;
    gaussianFiltering(&filterImages, grayImages);

    for (int n = 0; n < filterImages.size(); n++)
    {
        char name[50];
        sprintf(name, "data/filter/i%d_filter.jpg", n + 1);
        write(filterImages[n], name);
    }

    return 0;
}

test_gauss_filter_gil.cpp

#include <cstdio>
#include <cstdlib>
#include <vector>
using namespace std;
#include <gil/gil.h>
#include <gil/dip.h>
using namespace gil;

void readImages(vector<ByteImage3> *originalImages) {
    FILE *f = fopen("data/input/info.txt", "r");
    printf("Reading input image info ...\n");
    int nImages, width, height;
    fscanf(f, "%d%d%d", &width, &height, &nImages);
    printf("\t# of input images: %d\n\tsize: %d x %d\n", nImages, width, height);
    for(int i = 0; i < nImages; i++) {
        char name[50];
        fscanf(f, "%s", name);
        printf("\tinput image: %s\n", name);
        ByteImage3 img(width, height);
        read(img, name);
        originalImages->push_back(img);
    }
    fclose(f);
}

void gaussianFiltering(vector<FloatImage1> *filterImages, const vector<FloatImage1> &grayImages)
{
    GaussianFilter<FloatImage1> gaussian(1.5, 1.5);
    for(int n = 0; n < grayImages.size(); n++)
    {
        FloatImage1 img(grayImages[n].width(), grayImages[n].height());
        gaussian(img, grayImages[n]);
        filterImages->push_back(img);
    }
}


int main(int argc, char* argv[]) {
    printf("Reading input files ...\n");
    vector<ByteImage3> originalImages;
    readImages(&originalImages);

    printf("Produce gray-level input images ...\n");
    vector<FloatImage1> grayImages;
    for(int i = 0; i < originalImages.size(); ++i) {
        FloatImage1 gray = DefaultConvert<FloatImage1>()(Convert<RgbToGray>()(originalImages[i]));
        grayImages.push_back(gray);
    }

    printf("Performing Gaussian filtering ...\n");
    vector<FloatImage1> filterImages;
    gaussianFiltering(&filterImages, grayImages);

    for (int n = 0; n < filterImages.size(); n++)
    {
        char name[50];
        sprintf(name, "data/filter/i%d_filter.jpg", n + 1);
        write(filterImages[n], name);
    }

    return 0;
}

Hello, i am working with a median filter algorithm, however i cant build it because i am missing the gil/gil.h file. DO you know how i can that?