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/*
 * Copyright (c) 2011-2015, 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.BilinearPixelMB;
import boofcv.core.image.border.ImageBorder_IL_S32;
import boofcv.struct.image.ImageType;
import boofcv.struct.image.InterleavedS16;


/**
 * 

* Implementation of {@link BilinearPixelMB} for a specific image type. *

* *

* NOTE: This code was automatically generated using GenerateImplBilinearPixel_IL. *

* * @author Peter Abeles */ public class ImplBilinearPixel_IL_S16 extends BilinearPixelMB { int temp0[]; int temp1[]; int temp2[]; int temp3[]; public ImplBilinearPixel_IL_S16(int numBands) { this.temp0 = new int[numBands]; this.temp1 = new int[numBands]; this.temp2 = new int[numBands]; this.temp3 = new int[numBands]; } public ImplBilinearPixel_IL_S16(InterleavedS16 orig) { this(orig.getNumBands()); setImage(orig); } @Override public void setImage(InterleavedS16 image) { if( image.getNumBands() != temp0.length ) throw new IllegalArgumentException("Number of bands doesn't match"); super.setImage(image); } @Override public void get_fast(float x, float y, float[] values) { int xt = (int) x; int yt = (int) y; float ax = x - xt; float ay = y - yt; final int numBands = orig.numBands; int index = orig.startIndex + yt * stride + xt*numBands; short[] data = orig.data; // computing this just once doesn't seem to change speed very much. Keeping it here to avoid trying // it again in the future float a00 = (1.0f - ax) * (1.0f - ay); float a10 = ax * (1.0f - ay); float a11 = ax * ay; float a01 = (1.0f - ax) * ay; for( int i = 0; i < numBands; i++ ) { int indexBand = index+i; float val = a00 * (data[indexBand] ); // (x,y) val += a10 * (data[indexBand + numBands ] ); // (x+1,y) val += a11 * (data[indexBand + numBands + stride] ); // (x+1,y+1) val += a01 * (data[indexBand + stride] ); // (x,y+1) values[i] = val; } } public void get_border(float x, float y, float[] values) { float xf = (float)Math.floor(x); float yf = (float)Math.floor(y); int xt = (int) xf; int yt = (int) yf; float ax = x - xf; float ay = y - yf; ImageBorder_IL_S32 border = (ImageBorder_IL_S32)this.border; border.get(xt , yt , temp0); border.get(xt+1 , yt , temp1); border.get(xt+1 , yt+1, temp2); border.get(xt , yt+1, temp3); final int numBands = orig.numBands; for( int i = 0; i < numBands; i++ ) { float val = (1.0f - ax) * (1.0f - ay) * (float)temp0[i]; // (x,y) val += ax * (1.0f - ay) * (float)temp1[i]; // (x+1,y) val += ax * ay * (float)temp2[i]; // (x+1,y+1) val += (1.0f - ax) * ay * (float)temp3[i]; // (x,y+1) values[i] = val; } } @Override public void get(float x, float y, float[] values) { if (x < 0 || y < 0 || x > width-2 || y > height-2) get_border(x,y,values); else get_fast(x, y, values); } @Override public ImageType getImageType() { return orig.getImageType(); } }




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