1 | // ----------------------------------------------------------------------- |
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2 | // trimImage.cc: Trim a Cube of BLANKs around the spatial edge. |
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3 | // ----------------------------------------------------------------------- |
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4 | // Copyright (C) 2006, Matthew Whiting, ATNF |
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5 | // |
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6 | // This program is free software; you can redistribute it and/or modify it |
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7 | // under the terms of the GNU General Public License as published by the |
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8 | // Free Software Foundation; either version 2 of the License, or (at your |
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9 | // option) any later version. |
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10 | // |
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11 | // Duchamp is distributed in the hope that it will be useful, but WITHOUT |
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12 | // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 | // for more details. |
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15 | // |
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16 | // You should have received a copy of the GNU General Public License |
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17 | // along with Duchamp; if not, write to the Free Software Foundation, |
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18 | // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
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19 | // |
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20 | // Correspondence concerning Duchamp may be directed to: |
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21 | // Internet email: Matthew.Whiting [at] atnf.csiro.au |
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22 | // Postal address: Dr. Matthew Whiting |
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23 | // Australia Telescope National Facility, CSIRO |
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24 | // PO Box 76 |
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25 | // Epping NSW 1710 |
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26 | // AUSTRALIA |
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27 | // ----------------------------------------------------------------------- |
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28 | #include <iostream> |
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29 | #include <duchamp/param.hh> |
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30 | #include <duchamp/Cubes/cubes.hh> |
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31 | #include <duchamp/PixelMap/Object3D.hh> |
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32 | |
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33 | using namespace PixelInfo; |
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34 | |
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35 | namespace duchamp |
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36 | { |
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37 | |
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38 | void Cube::trimCube() |
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39 | { |
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40 | /// @details |
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41 | /// If the blankPix flag has been set, this routine trims excess blank |
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42 | /// pixels from the edges of the spatial image. |
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43 | /// It uses as its template the first channel, assuming that its non-BLANK |
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44 | /// size is representative of the rest of the channels. |
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45 | /// The edges are moved in until the first non-BLANK pixel is encountered. |
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46 | /// All other arrays are similarly edited, and the amount of trimming is |
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47 | /// recorded. |
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48 | |
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49 | // if(this->par.getFlagBlankPix()) { |
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50 | if(this->par.getFlagTrim()) { |
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51 | |
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52 | long xdim = this->axisDim[0]; |
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53 | long ydim = this->axisDim[1]; |
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54 | long zdim = this->axisDim[2]; |
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55 | const long ZCHAN = 0; |
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56 | |
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57 | int left,right,top,bottom; |
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58 | |
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59 | for(int z = 0; z < zdim; z++){ |
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60 | |
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61 | for(int row=0;row<ydim;row++){ |
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62 | left=0; |
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63 | right=0; |
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64 | while((left<xdim)&& |
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65 | (this->par.isBlank(this->array[row*xdim+left+ZCHAN*xdim*ydim])) ) { |
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66 | left++; |
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67 | } |
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68 | while((right<xdim)&& |
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69 | (this->par.isBlank(this->array[row*xdim+(xdim-1-right)+ZCHAN*xdim*ydim]))){ |
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70 | right++; |
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71 | } |
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72 | |
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73 | if( ((z==0)&&(row==0)) || (left < this->par.getBorderLeft()) ) |
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74 | this->par.setBorderLeft(left); |
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75 | if( ((z==0)&&(row==0)) || (right < this->par.getBorderRight()) ) |
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76 | this->par.setBorderRight(right); |
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77 | |
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78 | } |
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79 | |
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80 | for(int col=0;col<xdim;col++){ |
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81 | bottom=0; |
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82 | top=0; |
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83 | while((bottom<ydim)&& |
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84 | (this->par.isBlank(this->array[col+bottom*xdim+ZCHAN*xdim*ydim])) ) bottom++; |
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85 | |
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86 | while((top<ydim)&& |
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87 | (this->par.isBlank(this->array[col+(ydim-1-top)*xdim+ZCHAN*xdim*ydim])) ) top++; |
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88 | |
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89 | if( ((z==0)&&(col==0)) || (bottom < this->par.getBorderBottom()) ) |
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90 | this->par.setBorderBottom(bottom); |
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91 | if( ((z==0)&&(col==0)) || (top < this->par.getBorderTop()) ) |
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92 | this->par.setBorderTop(top); |
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93 | |
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94 | } |
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95 | |
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96 | } |
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97 | |
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98 | left = this->par.getBorderLeft(); |
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99 | right = this->par.getBorderRight(); |
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100 | top = this->par.getBorderTop(); |
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101 | bottom = this->par.getBorderBottom(); |
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102 | |
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103 | this->axisDim[0] = xdim - left - right; |
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104 | this->axisDim[1] = ydim - bottom - top; |
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105 | this->axisDim[2] = zdim; |
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106 | this->numPixels = this->axisDim[0]*this->axisDim[1]*this->axisDim[2]; |
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107 | |
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108 | long oldpos,newpos; |
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109 | |
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110 | // Do the trimming, but only if we need to -- is there a border of Blanks? |
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111 | if((left>0)||(right>0)||(bottom>0)||(top>0)) { |
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112 | |
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113 | // Trim the array of pixel values |
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114 | float *newarray = new float[this->numPixels]; |
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115 | for(int x = 0; x < axisDim[0]; x++){ |
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116 | for(int y = 0; y < axisDim[1]; y++){ |
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117 | for(int z = 0; z < axisDim[2]; z++){ |
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118 | oldpos = (x+left) + (y+bottom)*xdim + z*xdim*ydim; |
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119 | newpos = x + y*this->axisDim[0] + |
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120 | z*this->axisDim[0]*this->axisDim[1]; |
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121 | newarray[newpos] = this->array[oldpos]; |
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122 | } |
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123 | } |
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124 | } |
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125 | delete [] this->array; |
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126 | this->array = newarray; |
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127 | |
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128 | // Trim the array of baseline values |
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129 | if(this->par.getFlagBaseline()){ |
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130 | float *newarray = new float[this->numPixels]; |
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131 | for(int x = 0; x < axisDim[0]; x++){ |
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132 | for(int y = 0; y < axisDim[1]; y++){ |
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133 | for(int z = 0; z < axisDim[2]; z++){ |
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134 | oldpos = (x+left) + (y+bottom)*xdim + z*xdim*ydim; |
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135 | newpos = x + y*this->axisDim[0] + |
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136 | z*this->axisDim[0]*this->axisDim[1]; |
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137 | newarray[newpos] = this->baseline[oldpos]; |
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138 | } |
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139 | } |
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140 | } |
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141 | delete [] this->baseline; |
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142 | this->baseline = newarray; |
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143 | } |
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144 | |
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145 | // Trim the 2-D detection map |
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146 | short *newdetect = new short[this->axisDim[0]*this->axisDim[1]]; |
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147 | for(int x = 0; x < axisDim[0]; x++){ |
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148 | for(int y = 0; y < axisDim[1]; y++){ |
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149 | oldpos = (x+left) + (y+bottom)*xdim; |
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150 | newpos = x + y*this->axisDim[0]; |
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151 | newdetect[newpos] = this->detectMap[oldpos]; |
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152 | } |
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153 | } |
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154 | delete [] this->detectMap; |
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155 | this->detectMap = newdetect; |
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156 | |
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157 | if(this->par.getFlagATrous() || this->par.getFlagSmooth()){ |
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158 | // Trim the reconstructed array if we are going to do the |
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159 | // reconstruction or smooth the array |
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160 | float *newrecon = new float[this->numPixels]; |
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161 | for(int x = 0; x < axisDim[0]; x++){ |
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162 | for(int y = 0; y < axisDim[1]; y++){ |
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163 | for(int z = 0; z < axisDim[2]; z++){ |
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164 | oldpos = (x+left) + (y+bottom)*xdim + z*xdim*ydim; |
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165 | newpos = x + y*this->axisDim[0] + |
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166 | z*this->axisDim[0]*this->axisDim[1]; |
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167 | newrecon[newpos] = this->recon[oldpos]; |
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168 | } |
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169 | } |
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170 | } |
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171 | delete [] this->recon; |
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172 | this->recon = newrecon; |
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173 | } |
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174 | |
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175 | // Set the flag indicating trimming has taken place only if it has. |
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176 | this->par.setFlagCubeTrimmed(true); |
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177 | |
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178 | } |
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179 | |
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180 | } |
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181 | |
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182 | } |
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183 | |
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184 | |
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185 | void Cube::unTrimCube() |
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186 | { |
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187 | /// @details |
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188 | /// If the cube has been trimmed by trimCube(), this task adds back the |
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189 | /// BLANK pixels on the edges, so that it returns to its original size. |
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190 | /// All arrays are similarly edited. |
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191 | |
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192 | if(this->par.getFlagCubeTrimmed()){ |
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193 | |
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194 | long left = this->par.getBorderLeft(); |
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195 | long right = this->par.getBorderRight(); |
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196 | long top = this->par.getBorderTop(); |
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197 | long bottom = this->par.getBorderBottom(); |
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198 | |
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199 | long smallXDim = this->axisDim[0]; |
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200 | long smallYDim = this->axisDim[1]; |
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201 | long smallZDim = this->axisDim[2]; |
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202 | |
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203 | // first correct the dimension sizes |
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204 | this->axisDim[0] = smallXDim + left + right; |
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205 | this->axisDim[1] = smallYDim + bottom + top; |
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206 | this->axisDim[2] = smallZDim; |
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207 | this->numPixels = this->axisDim[0]*this->axisDim[1]*this->axisDim[2]; |
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208 | |
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209 | long pos,smlpos; |
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210 | bool isDud; |
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211 | |
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212 | // Correct the array of pixel values |
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213 | float *newarray = new float[this->numPixels]; |
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214 | for(int x = 0; x < this->axisDim[0]; x++){ |
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215 | for(int y = 0; y < this->axisDim[1]; y++){ |
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216 | isDud = (x<left) || (x>=smallXDim+left) || |
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217 | (y<bottom) || (y>=smallYDim+bottom); |
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218 | |
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219 | for(int z = 0; z < this->axisDim[2]; z++){ |
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220 | pos = x + y*this->axisDim[0] + z*this->axisDim[0]*this->axisDim[1]; |
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221 | smlpos = (x-left) + (y-bottom)*smallXDim + z * smallXDim * smallYDim; |
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222 | if(isDud) newarray[pos] = this->par.getBlankPixVal(); |
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223 | else newarray[pos] = this->array[smlpos]; |
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224 | } |
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225 | } |
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226 | } |
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227 | delete [] this->array; |
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228 | this->array = newarray; |
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229 | |
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230 | if(this->reconExists){ |
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231 | // Correct the reconstructed/smoothed array |
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232 | float *newrecon = new float[this->numPixels]; |
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233 | for(int x = 0; x < this->axisDim[0]; x++){ |
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234 | for(int y = 0; y < this->axisDim[1]; y++){ |
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235 | isDud = (x<left) || (x>=smallXDim+left) || |
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236 | (y<bottom) || (y>=smallYDim+bottom); |
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237 | |
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238 | for(int z = 0; z < this->axisDim[2]; z++){ |
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239 | pos = x + y*this->axisDim[0] + z*this->axisDim[0]*this->axisDim[1]; |
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240 | smlpos = (x-left) + (y-bottom)*smallXDim |
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241 | + z * smallXDim * smallYDim; |
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242 | if(isDud) newrecon[pos] = this->par.getBlankPixVal(); |
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243 | else newrecon[pos] = this->recon[smlpos]; |
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244 | } |
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245 | } |
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246 | } |
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247 | delete [] this->recon; |
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248 | this->recon = newrecon; |
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249 | } |
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250 | |
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251 | // Correct the array of baseline values |
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252 | if(this->par.getFlagBaseline()){ |
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253 | float *newbase = new float[this->numPixels]; |
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254 | for(int x = 0; x < this->axisDim[0]; x++){ |
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255 | for(int y = 0; y < this->axisDim[1]; y++){ |
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256 | isDud = (x<left) || (x>=smallXDim+left) || |
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257 | (y<bottom) || (y>=smallYDim+bottom); |
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258 | |
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259 | for(int z = 0; z < this->axisDim[2]; z++){ |
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260 | pos = x + y*this->axisDim[0] + z*this->axisDim[0]*this->axisDim[1]; |
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261 | smlpos = (x-left) + (y-bottom)*smallXDim + z*smallXDim*smallYDim; |
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262 | if(isDud) newbase[pos] = this->par.getBlankPixVal(); |
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263 | else newbase[pos] = this->baseline[smlpos]; |
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264 | } |
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265 | } |
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266 | } |
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267 | delete [] this->baseline; |
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268 | this->baseline = newbase; |
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269 | } |
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270 | |
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271 | // Correct the 2-D detection map |
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272 | short *newdetect = new short[this->axisDim[0]*this->axisDim[1]]; |
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273 | for(int x = 0; x < this->axisDim[0]; x++){ |
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274 | for(int y = 0; y < this->axisDim[1]; y++){ |
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275 | pos = x + y*this->axisDim[0]; |
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276 | smlpos = (x-left) + (y-bottom)*smallXDim; |
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277 | isDud = (x<left) || (x>=smallXDim+left) || |
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278 | (y<bottom) || (y>=smallYDim+bottom); |
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279 | if(isDud) newdetect[pos]=0; |
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280 | else newdetect[pos] = this->detectMap[smlpos]; |
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281 | } |
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282 | } |
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283 | delete [] this->detectMap; |
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284 | this->detectMap = newdetect; |
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285 | |
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286 | |
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287 | // Now update the positions for all the detections |
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288 | |
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289 | std::vector<Detection>::iterator obj; |
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290 | for(obj=this->objectList->begin();obj<this->objectList->end();obj++){ |
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291 | obj->addOffsets(left,bottom,0); |
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292 | } |
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293 | |
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294 | } |
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295 | |
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296 | } |
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297 | |
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298 | } |
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