boofcv.alg.transform.pyramid.impl.ImplPyramidOps_MT Maven / Gradle / Ivy
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/*
* Copyright (c) 2021, 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.transform.pyramid.impl;
import javax.annotation.Generated;
import boofcv.alg.interpolate.InterpolatePixelS;
import boofcv.struct.image.GrayF32;
import boofcv.struct.image.GrayU8;
import boofcv.concurrency.BoofConcurrency;
/**
*
* Image type specific implementations of functions in {@link boofcv.alg.transform.pyramid.PyramidOps}.
*
*
*
* DO NOT MODIFY. This code was automatically generated by GenerateImplPyramidOps.
*
*
* @author Peter Abeles
*/
@SuppressWarnings("Duplicates")
@Generated("boofcv.alg.transform.pyramid.impl.ImplPyramidOps")
public class ImplPyramidOps_MT {
/**
* Scales an image up using interpolation
*/
public static void scaleImageUp(GrayF32 input , GrayF32 output , int scale ,
InterpolatePixelS interp ) {
output.reshape(input.width*scale,input.height*scale);
float fdiv = 1/(float)scale;
interp.setImage(input);
BoofConcurrency.loopFor(0, output.height, y -> {
float inputY = y*fdiv;
int indexOutput = output.getIndex(0,y);
for (int x = 0; x < output.width; x++) {
float inputX = x*fdiv;
output.data[indexOutput++] = interp.get(inputX,inputY);
}
});
}
/**
* Scales down the input by a factor of 2. Every other pixel along both axises is skipped.
*/
public static void scaleDown2( GrayF32 input , GrayF32 output ) {
output.reshape(input.width / 2, input.height / 2);
BoofConcurrency.loopFor(0, output.height, y -> {
int indexInput = 2*y*input.stride;
int indexOutput = y*output.stride;
for (int x = 0; x < output.width; x++,indexInput+=2) {
output.data[indexOutput++] = input.data[indexInput];
}
});
}
/**
* Scales an image up using interpolation
*/
public static void scaleImageUp(GrayU8 input , GrayU8 output , int scale ,
InterpolatePixelS interp ) {
output.reshape(input.width*scale,input.height*scale);
float fdiv = 1/(float)scale;
interp.setImage(input);
BoofConcurrency.loopFor(0, output.height, y -> {
float inputY = y*fdiv;
int indexOutput = output.getIndex(0,y);
for (int x = 0; x < output.width; x++) {
float inputX = x*fdiv;
output.data[indexOutput++] = (byte)interp.get(inputX,inputY);
}
});
}
/**
* Scales down the input by a factor of 2. Every other pixel along both axises is skipped.
*/
public static void scaleDown2( GrayU8 input , GrayU8 output ) {
output.reshape(input.width / 2, input.height / 2);
BoofConcurrency.loopFor(0, output.height, y -> {
int indexInput = 2*y*input.stride;
int indexOutput = y*output.stride;
for (int x = 0; x < output.width; x++,indexInput+=2) {
output.data[indexOutput++] = input.data[indexInput];
}
});
}
}