/*
 * Copyright (c) 2011-2016, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * Licensed 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 boofcv.alg.feature.dense.impl;

import boofcv.alg.feature.dense.DescribeDenseHogAlg;
import boofcv.struct.image.GrayS16;
import boofcv.struct.image.GrayU8;
import boofcv.struct.image.ImageType;

/**
 * Implementation pf {@link DescribeDenseHogAlg} for {@link GrayU8}.
 *
 * @author Peter Abeles
 */
public class DescribeDenseHogAlg_U8 extends DescribeDenseHogAlg {
	public DescribeDenseHogAlg_U8(int orientationBins, int widthCell, int widthBlock, int stepBlock) {
		super(orientationBins, widthCell, widthBlock,stepBlock, ImageType.single(GrayU8.class));
	}

	@Override
	public void computeDerivative(int pixelIndex) {
		pixelDX = derivX.data[pixelIndex];
		pixelDY = derivY.data[pixelIndex];
	}
}