com.simiacryptus.mindseye.layers.java.ImgZeroPaddingLayer.java Source code

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Here is the source code for com.simiacryptus.mindseye.layers.java.ImgZeroPaddingLayer.java

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/*
 * Copyright (c) 2018 by Andrew Charneski.
 *
 * The author licenses this file to you 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.
 */

package com.simiacryptus.mindseye.layers.java;

import com.google.gson.JsonObject;
import com.simiacryptus.mindseye.lang.DataSerializer;
import com.simiacryptus.mindseye.lang.LayerBase;
import com.simiacryptus.mindseye.lang.Result;

import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * Increases the resolution of the input by selecting a larger centered window. The output png will have the same
 * number of color bands, and the area outside the source png will be setWeights to 0.
 */
@SuppressWarnings("serial")
public class ImgZeroPaddingLayer extends LayerBase {

    private final int sizeX;
    private final int sizeY;

    /**
     * Instantiates a new Img crop key.
     *
     * @param sizeX the size x
     * @param sizeY the size y
     */
    public ImgZeroPaddingLayer(final int sizeX, final int sizeY) {
        super();
        this.sizeX = sizeX;
        this.sizeY = sizeY;
    }

    /**
     * Instantiates a new Img crop key.
     *
     * @param json the json
     */
    protected ImgZeroPaddingLayer(@Nonnull final JsonObject json) {
        super(json);
        sizeX = json.getAsJsonPrimitive("sizeX").getAsInt();
        sizeY = json.getAsJsonPrimitive("sizeY").getAsInt();
    }

    /**
     * From json img crop key.
     *
     * @param json the json
     * @param rs   the rs
     * @return the img crop key
     */
    public static ImgZeroPaddingLayer fromJson(@Nonnull final JsonObject json, Map<CharSequence, byte[]> rs) {
        return new ImgZeroPaddingLayer(json);
    }

    @Nonnull
    @Override
    public Result eval(@Nonnull final Result... inObj) {
        assert inObj.length == 1;
        @Nonnull
        int[] dimensions = inObj[0].getData().getDimensions();
        ImgCropLayer imgCropLayer = new ImgCropLayer(dimensions[0] + 2 * this.sizeX,
                dimensions[1] + 2 * this.sizeY);
        Result eval = imgCropLayer.eval(inObj);
        imgCropLayer.freeRef();
        return eval;
    }

    @Nonnull
    @Override
    public JsonObject getJson(Map<CharSequence, byte[]> resources, DataSerializer dataSerializer) {
        @Nonnull
        final JsonObject json = super.getJsonStub();
        json.addProperty("sizeX", sizeX);
        json.addProperty("sizeY", sizeX);
        return json;
    }

    @Nonnull
    @Override
    public List<double[]> state() {
        return new ArrayList<>();
    }

}