boofcv.alg.interpolate.impl.ImplBilinearPixel_IL_U16 Maven / Gradle / Ivy
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/*
* Copyright (c) 2011-2019, 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.alg.interpolate.InterpolatePixelMB;
import boofcv.struct.border.ImageBorder_IL_S32;
import boofcv.struct.image.ImageType;
import boofcv.struct.image.InterleavedU16;
/**
*
* Implementation of {@link BilinearPixelMB} for a specific image type.
*
*
*
* DO NOT MODIFY. This code was automatically generated by GenerateImplBilinearPixel_IL.
*
*
* @author Peter Abeles
*/
public class ImplBilinearPixel_IL_U16 extends BilinearPixelMB {
int temp0[];
int temp1[];
int temp2[];
int temp3[];
public ImplBilinearPixel_IL_U16(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_U16(InterleavedU16 orig) {
this(orig.getNumBands());
setImage(orig);
}
@Override
public void setImage(InterleavedU16 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]& 0xFFFF ); // (x,y)
val += a10 * (data[indexBand + numBands ]& 0xFFFF ); // (x+1,y)
val += a11 * (data[indexBand + numBands + stride]& 0xFFFF ); // (x+1,y+1)
val += a01 * (data[indexBand + stride]& 0xFFFF ); // (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 InterpolatePixelMB copy() {
ImplBilinearPixel_IL_U16 out = new ImplBilinearPixel_IL_U16(temp0.length);
out.setBorder(border);
return out;
}
@Override
public ImageType getImageType() {
return orig.getImageType();
}
}