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BoofCV is an open source Java library for real-time computer vision and robotics applications.

There is a newer version: 1.1.6

/*
 * Copyright (c) 2011-2017, 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.interpolate.impl;

import boofcv.alg.interpolate.NearestNeighborPixelS;
import boofcv.core.image.border.ImageBorder_S32;
import boofcv.struct.image.GrayU8;
import boofcv.struct.image.ImageType;


/**
 * 
 * Performs nearest neighbor interpolation to extract values between pixels in an image.
 * 
 *
 * 
 * NOTE: This code was automatically generated using {@link GenerateNearestNeighborPixel}.
 * 
 *
 * @author Peter Abeles
 */
public class NearestNeighborPixel_U8 extends NearestNeighborPixelS {

	private byte data[];
	public NearestNeighborPixel_U8() {
	}

	public NearestNeighborPixel_U8(GrayU8 orig) {

		setImage(orig);
	}
	@Override
	public void setImage(GrayU8 image) {
		super.setImage(image);
		this.data = orig.data;
	}

	@Override
	public float get_fast(float x, float y) {
		return data[ orig.startIndex + ((int)y)*stride + (int)x]& 0xFF;
	}

	public float get_border(float x, float y) {
		return ((ImageBorder_S32)border).get((int)Math.floor(x),(int)Math.floor(y));
	}

	@Override
	public float get(float x, float y) {
		if (x < 0 || y < 0 || x > width-1 || y > height-1 )
			return get_border(x,y);
		int xx = (int)x;
		int yy = (int)y;

		return data[ orig.startIndex + yy*stride + xx]& 0xFF;
	}

	@Override
	public ImageType getImageType() {
		return ImageType.single(GrayU8.class);
	}

}