boofcv.alg.filter.convolve.noborder.ConvolveImageStandardSparse Maven / Gradle / Ivy
/*
* 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.filter.convolve.noborder;
import boofcv.struct.convolve.Kernel1D_F32;
import boofcv.struct.convolve.Kernel1D_I32;
import boofcv.struct.image.GrayF32;
import boofcv.struct.image.GrayS16;
import boofcv.struct.image.GrayU8;
/**
*
*
* General implementation of {@link boofcv.alg.filter.convolve.ConvolveImageNoBorderSparse}.
*
*
*
* DO NOT MODIFY. Auto generated by {@link GenerateConvolveStandardSparse}.
*
*
* @author Peter Abeles
*/
public class ConvolveImageStandardSparse {
public static float convolve(Kernel1D_F32 horizontal, Kernel1D_F32 vertical,
GrayF32 input, int c_x , int c_y, float storage[] )
{
int widthH = horizontal.getWidth();
int widthV = vertical.getWidth();
int offsetH = horizontal.getOffset();
int offsetV = vertical.getOffset();
// convolve horizontally first
for( int i = 0; i < widthV; i++ ) {
int indexImg = input.startIndex + (i+c_y-offsetV)*input.stride + c_x-offsetH;
float total = 0;
for( int j = 0; j < widthH; j++ ,indexImg++) {
total += (input.data[indexImg])*horizontal.data[j];
}
storage[i] = total;
}
// convolve vertically
float total = 0;
for( int i = 0; i < widthV; i++ ) {
total += storage[i]*vertical.data[i];
}
return total;
}
public static int convolve(Kernel1D_I32 horizontal, Kernel1D_I32 vertical,
GrayU8 input, int c_x , int c_y, int storage[] )
{
int widthH = horizontal.getWidth();
int widthV = vertical.getWidth();
int offsetH = horizontal.getOffset();
int offsetV = vertical.getOffset();
// convolve horizontally first
for( int i = 0; i < widthV; i++ ) {
int indexImg = input.startIndex + (i+c_y-offsetV)*input.stride + c_x-offsetH;
int total = 0;
for( int j = 0; j < widthH; j++ ,indexImg++) {
total += (input.data[indexImg] & 0xFF)*horizontal.data[j];
}
storage[i] = total;
}
// convolve vertically
int total = 0;
for( int i = 0; i < widthV; i++ ) {
total += storage[i]*vertical.data[i];
}
return total;
}
public static int convolve(Kernel1D_I32 horizontal, Kernel1D_I32 vertical,
GrayU8 input, int c_x , int c_y, int storage[] ,
int divisorHorizontal ,
int divisorVertical )
{
int widthH = horizontal.getWidth();
int widthV = vertical.getWidth();
int offsetH = horizontal.getOffset();
int offsetV = vertical.getOffset();
int halfHorizontal = divisorHorizontal/2;
// convolve horizontally first
for( int i = 0; i < widthV; i++ ) {
int indexImg = input.startIndex + (i+c_y-offsetV)*input.stride + c_x-offsetH;
int total = 0;
for( int j = 0; j < widthH; j++ ,indexImg++) {
total += (input.data[indexImg] & 0xFF)*horizontal.data[j];
}
storage[i] = (total + halfHorizontal)/divisorHorizontal;
}
// convolve vertically
int total = 0;
for( int i = 0; i < widthV; i++ ) {
total += storage[i]*vertical.data[i];
}
return (total + divisorVertical/2)/divisorVertical;
}
public static int convolve(Kernel1D_I32 horizontal, Kernel1D_I32 vertical,
GrayS16 input, int c_x , int c_y, int storage[] )
{
int widthH = horizontal.getWidth();
int widthV = vertical.getWidth();
int offsetH = horizontal.getOffset();
int offsetV = vertical.getOffset();
// convolve horizontally first
for( int i = 0; i < widthV; i++ ) {
int indexImg = input.startIndex + (i+c_y-offsetV)*input.stride + c_x-offsetH;
int total = 0;
for( int j = 0; j < widthH; j++ ,indexImg++) {
total += (input.data[indexImg])*horizontal.data[j];
}
storage[i] = total;
}
// convolve vertically
int total = 0;
for( int i = 0; i < widthV; i++ ) {
total += storage[i]*vertical.data[i];
}
return total;
}
public static int convolve(Kernel1D_I32 horizontal, Kernel1D_I32 vertical,
GrayS16 input, int c_x , int c_y, int storage[] ,
int divisorHorizontal ,
int divisorVertical )
{
int widthH = horizontal.getWidth();
int widthV = vertical.getWidth();
int offsetH = horizontal.getOffset();
int offsetV = vertical.getOffset();
int halfHorizontal = divisorHorizontal/2;
// convolve horizontally first
for( int i = 0; i < widthV; i++ ) {
int indexImg = input.startIndex + (i+c_y-offsetV)*input.stride + c_x-offsetH;
int total = 0;
for( int j = 0; j < widthH; j++ ,indexImg++) {
total += (input.data[indexImg])*horizontal.data[j];
}
storage[i] = (total + halfHorizontal)/divisorHorizontal;
}
// convolve vertically
int total = 0;
for( int i = 0; i < widthV; i++ ) {
total += storage[i]*vertical.data[i];
}
return (total + divisorVertical/2)/divisorVertical;
}
}