2 * PROJECT: NyARToolkit(Extension)
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3 * --------------------------------------------------------------------------------
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4 * The NyARToolkit is Java edition ARToolKit class library.
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5 * Copyright (C)2008-2009 Ryo Iizuka
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7 * This program is free software: you can redistribute it and/or modify
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8 * it under the terms of the GNU General Public License as published by
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9 * the Free Software Foundation, either version 3 of the License, or
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10 * (at your option) any later version.
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12 * This program is distributed in the hope that it will be useful,
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 * GNU General Public License for more details.
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17 * You should have received a copy of the GNU General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 * For further information please contact.
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21 * http://nyatla.jp/nyatoolkit/
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22 * <airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp>
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25 package jp.nyatla.nyartoolkit.core.rasterfilter;
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27 import jp.nyatla.nyartoolkit.NyARException;
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28 import jp.nyatla.nyartoolkit.core.raster.*;
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29 import jp.nyatla.nyartoolkit.core.types.NyARBufferType;
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30 import jp.nyatla.nyartoolkit.core.types.NyARIntSize;
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35 * Gaussianフィルタで画像を平滑化します。
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38 public class NyARRasterFilter_GaussianSmooth implements INyARRasterFilter
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40 private IdoFilterImpl _do_filter_impl;
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41 public NyARRasterFilter_GaussianSmooth(int i_raster_type) throws NyARException
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43 switch (i_raster_type) {
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44 case NyARBufferType.INT1D_GRAY_8:
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45 this._do_filter_impl=new IdoFilterImpl_GRAY_8();
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48 throw new NyARException();
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51 public void doFilter(INyARRaster i_input, INyARRaster i_output) throws NyARException
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53 assert (i_input!=i_output);
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54 this._do_filter_impl.doFilter(i_input,i_output,i_input.getSize());
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57 interface IdoFilterImpl
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59 public void doFilter(INyARRaster i_input, INyARRaster i_output,NyARIntSize i_size) throws NyARException;
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61 class IdoFilterImpl_GRAY_8 implements IdoFilterImpl
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63 public void doFilter(INyARRaster i_input, INyARRaster i_output,NyARIntSize i_size) throws NyARException
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65 assert (i_input.isEqualBufferType(NyARBufferType.INT1D_GRAY_8));
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66 assert (i_output.isEqualBufferType(NyARBufferType.INT1D_GRAY_8));
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67 int[] in_ptr =(int[])i_input.getBuffer();
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68 int[] out_ptr=(int[])i_output.getBuffer();
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70 int height=i_size.h;
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74 col1=in_ptr[bptr ]*2+in_ptr[bptr+width ];
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75 col2=in_ptr[bptr+1]*2+in_ptr[bptr+width+1];
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76 out_ptr[bptr]=(col1*2+col2)/9;
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78 for(int x=0;x<width-2;x++){
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81 col2=in_ptr[bptr+1]*2+in_ptr[bptr+width+1];
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82 out_ptr[bptr]=(col0+col1*2+col2)/12;
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85 out_ptr[bptr]=(col1+col2)/9;
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89 for(int y=0;y<height-2;y++){
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91 col1=in_ptr[bptr ]*2+in_ptr[bptr-width ]+in_ptr[bptr+width ];
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92 col2=in_ptr[bptr+1]*2+in_ptr[bptr-width+1]+in_ptr[bptr+width+1];
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93 out_ptr[bptr]=(col1+col2)/12;
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95 for(int x=0;x<width-2;x++){
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98 col2=in_ptr[bptr+1]*2+in_ptr[bptr-width+1]+in_ptr[bptr+width+1];
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99 out_ptr[bptr]=(col0+col1*2+col2)/16;
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103 out_ptr[bptr]=(col1*2+col2)/12;
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107 col1=in_ptr[bptr ]*2+in_ptr[bptr-width ];
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108 col2=in_ptr[bptr+1]*2+in_ptr[bptr-width+1];
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109 out_ptr[bptr]=(col1+col2)/9;
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111 for(int x=0;x<width-2;x++){
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114 col2=in_ptr[bptr+1]*2+in_ptr[bptr-width+1];
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115 out_ptr[bptr]=(col0+col1*2+col2)/12;
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118 out_ptr[bptr]=(col1*2+col2)/9;
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