Mat image; // in my code I am reading image as Mat so need to convert it to IplImage
image = imread(inFileName, CV_LOAD_IMAGE_COLOR);
IplImage* imgIpl = new IplImage(image);

// You have to supply the dimension of the image to hold the pixels:
gil::rgb8_image_t img(imgIpl->width, imgIpl->height);

// A view concept does not copy pixels at all. All gil algorithms operates on view by the way.
gil::rgb8_view_t imgView = gil::interleaved_view(imgIpl->width, imgIpl->height, (gil::rgb8_pixel_t*)imgIpl->imageData, imgIpl->width*3);

// To copy data use:
gil::copy_pixels(imgView, gil::view(img));