001/*
002 * Copyright (C) Photon Vision.
003 *
004 * This program is free software: you can redistribute it and/or modify
005 * it under the terms of the GNU General Public License as published by
006 * the Free Software Foundation, either version 3 of the License, or
007 * (at your option) any later version.
008 *
009 * This program is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012 * GNU General Public License for more details.
013 *
014 * You should have received a copy of the GNU General Public License
015 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
016 */
017
018package org.photonvision.vision.pipe.impl;
019
020import org.opencv.core.Mat;
021import org.opencv.core.Size;
022import org.opencv.imgproc.Imgproc;
023import org.photonvision.vision.frame.FrameDivisor;
024import org.photonvision.vision.pipe.MutatingPipe;
025
026/** Pipe that resizes an image to a given resolution */
027public class ResizeImagePipe extends MutatingPipe<Mat, ResizeImagePipe.ResizeImageParams> {
028    /**
029     * Process this pipe
030     *
031     * @param in {@link Mat} to be resized
032     */
033    @Override
034    protected Void process(Mat in) {
035        int width = in.cols() / params.getDivisor().value;
036        int height = in.rows() / params.getDivisor().value;
037        Imgproc.resize(in, in, new Size(width, height));
038
039        return null;
040    }
041
042    public static class ResizeImageParams {
043        private final FrameDivisor divisor;
044
045        public ResizeImageParams(FrameDivisor divisor) {
046            this.divisor = divisor;
047        }
048
049        public FrameDivisor getDivisor() {
050            return divisor;
051        }
052    }
053}