pktools  2.6.3
Processing Kernel for remote sensing data
pkreclass.cc
1 /**********************************************************************
2 pkreclass.cc: program to replace pixel values in raster image
3 Copyright (C) 2008-2014 Pieter Kempeneers
4 
5 This file is part of pktools
6 
7 pktools is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
11 
12 pktools is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with pktools. If not, see <http://www.gnu.org/licenses/>.
19 ***********************************************************************/
20 #include <assert.h>
21 #include <map>
22 #include "base/Optionpk.h"
23 #include "imageclasses/ImgReaderOgr.h"
24 #include "imageclasses/ImgWriterOgr.h"
25 #include "imageclasses/ImgReaderGdal.h"
26 #include "imageclasses/ImgWriterGdal.h"
27 
28 using namespace std;
29 
30 int main(int argc, char *argv[])
31 {
32  Optionpk<string> input_opt("i", "input", "Input image");
33  Optionpk<string> mask_opt("m", "mask", "Mask image(s)");
34  Optionpk<string> output_opt("o", "output", "Output mask file");
35  Optionpk<unsigned short> masknodata_opt("msknodata", "msknodata", "Mask value(s) where image has nodata. Use one value for each mask, or multiple values for a single mask.", 1);
36  Optionpk<int> nodata_opt("nodata", "nodata", "nodata value to put in image if not valid (0)", 0);
37  Optionpk<string> colorTable_opt("ct", "ct", "color table (file with 5 columns: id R G B ALFA (0: transparent, 255: solid)");
38  Optionpk<unsigned short> band_opt("b", "band", "band index to replace (other bands are copied to output)", 0);
39  Optionpk<string> type_opt("ot", "otype", "Data type for output image ({Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/CInt16/CInt32/CFloat32/CFloat64}). Empty string: inherit type from input image", "");
40  Optionpk<string> code_opt("code", "code", "Recode text file (2 colums: from to)");
41  Optionpk<string> class_opt("c", "class", "list of classes to reclass (in combination with reclass option)");
42  Optionpk<string> reclass_opt("r", "reclass", "list of recoded class(es) (in combination with class option)");
43  Optionpk<string> fieldname_opt("n", "fname", "field name of the shape file to be replaced", "label");
44  Optionpk<string> option_opt("co", "co", "Creation option for output file. Multiple options can be specified.");
45  Optionpk<string> description_opt("d", "description", "Set image description");
46  Optionpk<short> verbose_opt("v", "verbose", "verbose", 0);
47 
48  bool doProcess;//stop process when program was invoked with help option (-h --help)
49  try{
50  doProcess=input_opt.retrieveOption(argc,argv);
51  mask_opt.retrieveOption(argc,argv);
52  masknodata_opt.retrieveOption(argc,argv);
53  nodata_opt.retrieveOption(argc,argv);
54  code_opt.retrieveOption(argc,argv);
55  class_opt.retrieveOption(argc,argv);
56  reclass_opt.retrieveOption(argc,argv);
57  colorTable_opt.retrieveOption(argc,argv);
58  output_opt.retrieveOption(argc,argv);
59  type_opt.retrieveOption(argc,argv);
60  band_opt.retrieveOption(argc,argv);
61  fieldname_opt.retrieveOption(argc,argv);
62  option_opt.retrieveOption(argc,argv);
63  description_opt.retrieveOption(argc,argv);
64  verbose_opt.retrieveOption(argc,argv);
65  }
66  catch(string predefinedString){
67  std::cout << predefinedString << std::endl;
68  exit(0);
69  }
70  if(!doProcess){
71  std::cout << "short option -h shows basic options only, use long option --help to show all options" << std::endl;
72  exit(0);//help was invoked, stop processing
73  }
74  if(input_opt.empty()){
75  std::cerr << "No input file provided (use option -i). Use --help for help information" << std::endl;
76  exit(0);
77  }
78  if(output_opt.empty()){
79  std::cerr << "No output file provided (use option -o). Use --help for help information" << std::endl;
80  exit(0);
81  }
82 
83  // vector<short> bandVector;
84  // for(int iband=0;iband<band_opt.size();++iband)
85  // bandVector.push_back(band_opt[iband]);
86  map<string,string> codemapString;//map with codes: codemapString[theKey(from)]=theValue(to)
87  map<double,double> codemap;//map with codes: codemap[theKey(from)]=theValue(to)
88  if(code_opt.size()){
89  if(verbose_opt[0])
90  cout << "opening code text file " << code_opt[0] << endl;
91  ifstream codefile;
92  codefile.open(code_opt[0].c_str());
93  string theKey;
94  string theValue;
95  while(codefile>>theKey){
96  codefile >> theValue;
97  codemapString[theKey]=theValue;
98  codemap[string2type<double>(theKey)]=string2type<double>(theValue);
99  }
100  codefile.close();
101  }
102  else{//use combination of class_opt and reclass_opt
103  assert(class_opt.size()==reclass_opt.size());
104  for(int iclass=0;iclass<class_opt.size();++iclass){
105  codemapString[class_opt[iclass]]=reclass_opt[iclass];
106  codemap[string2type<double>(class_opt[iclass])]=string2type<double>(reclass_opt[iclass]);
107  }
108  }
109  assert(codemapString.size());
110  assert(codemap.size());
111  //if verbose true, print the codes to screen
112  if(verbose_opt[0]){
113  map<string,string>::iterator mit;
114  cout << codemapString.size() << " codes used: " << endl;
115  for(mit=codemapString.begin();mit!=codemapString.end();++mit)
116  cout << (*mit).first << " " << (*mit).second << endl;
117  }
118  bool refIsRaster=false;
119  ImgReaderOgr ogrReader;
120  try{
121  ogrReader.open(input_opt[0]);
122  }
123  catch(string errorString){
124  refIsRaster=true;
125  }
126  // if(input_opt[0].find(".shp")!=string::npos){//shape file
127  if(!refIsRaster){
128  if(verbose_opt[0])
129  cout << "opening " << input_opt[0] << " for reading " << endl;
130  // ImgReaderOgr ogrReader(input_opt[0]);
131  if(verbose_opt[0])
132  cout << "opening " << output_opt[0] << " for writing " << endl;
133  ImgWriterOgr ogrWriter(output_opt[0],ogrReader);
134  if(verbose_opt[0])
135  cout << "copied layer from " << input_opt[0] << endl << flush;
136  OGRFeatureDefn *poFDefn = ogrWriter.getLayer()->GetLayerDefn();
137  //start reading features from the layer
138  if(verbose_opt[0])
139  cout << "reset reading" << endl;
140  ogrReader.getLayer()->ResetReading();
141  unsigned long int ifeature=0;
142  if(verbose_opt[0])
143  cout << "going through features" << endl << flush;
144  while(true){
145 // while( (poFeature = ogrWriter.getLayer()->GetNextFeature()) != NULL ){
146  OGRFeature *poFeature;
147  poFeature=ogrReader.getLayer()->GetNextFeature();
148  if(poFeature== NULL)
149  break;
150  OGRFeatureDefn *poFDefn = ogrWriter.getLayer()->GetLayerDefn();
151  string featurename;
152  for(int iField=0;iField<poFDefn->GetFieldCount();++iField){
153  OGRFieldDefn *poFieldDefn = poFDefn->GetFieldDefn(iField);
154  string fieldname=poFieldDefn->GetNameRef();
155  if(fieldname==fieldname_opt[0]){
156  string fromClass=poFeature->GetFieldAsString(iField);
157  string toClass=fromClass;
158  if(codemapString.find(fromClass)!=codemapString.end())
159  toClass=codemapString[fromClass];
160  poFeature->SetField(iField,toClass.c_str());
161  if(verbose_opt[0])
162  cout << "feature " << ifeature << ": " << fromClass << "->" << poFeature->GetFieldAsInteger(iField) << endl << flush;
163 // cout << "feature " << ifeature << ": " << fromClass << "->" << toClass << endl << flush;
164  }
165  }
166  //do not forget to actually write feature to file!!!
167  ogrWriter.createFeature(poFeature);
168  OGRFeature::DestroyFeature( poFeature );
169  ++ifeature;
170  }
171  if(verbose_opt[0])
172  cout << "replaced " << ifeature << " features" << endl;
173  ogrReader.close();
174  ogrWriter.close();
175  }
176  else{//image file
177  ImgReaderGdal inputReader;
178  vector<ImgReaderGdal> maskReader(mask_opt.size());
179  ImgWriterGdal outputWriter;
180  if(verbose_opt[0])
181  cout << "opening input image file " << input_opt[0] << endl;
182  inputReader.open(input_opt[0]);
183  for(int imask=0;imask<mask_opt.size();++imask){
184  if(verbose_opt[0])
185  cout << "opening mask image file " << mask_opt[imask] << endl;
186  maskReader[imask].open(mask_opt[imask]);
187  }
188  if(verbose_opt[0]){
189  cout << "opening output image file " << output_opt[0] << endl;
190  cout << "data type: " << type_opt[0] << endl;
191  }
192  //create output image with user defined data type
193  GDALDataType theType=GDT_Unknown;
194  if(verbose_opt[0])
195  cout << "possible output data types: ";
196  for(int iType = 0; iType < GDT_TypeCount; ++iType){
197  if(verbose_opt[0])
198  cout << " " << GDALGetDataTypeName((GDALDataType)iType);
199  if( GDALGetDataTypeName((GDALDataType)iType) != NULL
200  && EQUAL(GDALGetDataTypeName((GDALDataType)iType),
201  type_opt[0].c_str()))
202  theType=(GDALDataType) iType;
203  }
204  if(theType==GDT_Unknown)
205  theType=inputReader.getDataType();
206  if(verbose_opt[0])
207  cout << endl << "Output pixel type: " << GDALGetDataTypeName(theType) << endl;
208  if(option_opt.findSubstring("INTERLEAVE=")==option_opt.end()){
209  string theInterleave="INTERLEAVE=";
210  theInterleave+=inputReader.getInterleave();
211  option_opt.push_back(theInterleave);
212  }
213  outputWriter.open(output_opt[0],inputReader.nrOfCol(),inputReader.nrOfRow(),inputReader.nrOfBand(),theType,inputReader.getImageType(),option_opt);
214  for(int iband=0;iband<inputReader.nrOfBand();++iband)
215  outputWriter.GDALSetNoDataValue(nodata_opt[0],iband);
216  if(description_opt.size())
217  outputWriter.setImageDescription(description_opt[0]);
218 
219  if(colorTable_opt.size()){
220  if(colorTable_opt[0]!="none")
221  outputWriter.setColorTable(colorTable_opt[0]);
222  }
223  else if (inputReader.getColorTable()!=NULL)//copy colorTable from input image
224  outputWriter.setColorTable(inputReader.getColorTable());
225 
226  //if input image is georeferenced, copy projection info to output image
227  if(inputReader.isGeoRef()){
228  for(int imask=0;imask<mask_opt.size();++imask)
229  assert(maskReader[imask].isGeoRef());
230  }
231  outputWriter.setProjection(inputReader.getProjection());
232  double ulx,uly,lrx,lry;
233  inputReader.getBoundingBox(ulx,uly,lrx,lry);
234  outputWriter.copyGeoTransform(inputReader);
235  assert(nodata_opt.size()==masknodata_opt.size());
236  if(verbose_opt[0]&&mask_opt.size()){
237  for(int iv=0;iv<masknodata_opt.size();++iv)
238  cout << masknodata_opt[iv] << "->" << nodata_opt[iv] << endl;
239  }
240 
241  assert(outputWriter.nrOfCol()==inputReader.nrOfCol());
242  // Vector2d<int> lineInput(inputReader.nrOfBand(),inputReader.nrOfCol());
243  Vector2d<double> lineInput(inputReader.nrOfBand(),inputReader.nrOfCol());
244  Vector2d<short> lineMask(mask_opt.size());
245  for(int imask=0;imask<mask_opt.size();++imask)
246  lineMask[imask].resize(maskReader[imask].nrOfCol());
247  Vector2d<double> lineOutput(outputWriter.nrOfBand(),outputWriter.nrOfCol());
248  int irow=0;
249  int icol=0;
250  const char* pszMessage;
251  void* pProgressArg=NULL;
252  GDALProgressFunc pfnProgress=GDALTermProgress;
253  double progress=0;
254  pfnProgress(progress,pszMessage,pProgressArg);
255  double oldRowMask=-1;
256  for(irow=0;irow<inputReader.nrOfRow();++irow){
257  //read line in lineInput buffer
258  for(int iband=0;iband<inputReader.nrOfBand();++iband){
259  try{
260  // inputReader.readData(lineInput[iband],GDT_Int32,irow,iband);
261  inputReader.readData(lineInput[iband],GDT_Float64,irow,iband);
262  }
263  catch(string errorstring){
264  cerr << errorstring << endl;
265  exit(1);
266  }
267  }
268  double x,y;//geo coordinates
269  double colMask,rowMask;//image coordinates in mask image
270  for(icol=0;icol<inputReader.nrOfCol();++icol){
271  bool masked=false;
272  if(mask_opt.size()>1){//multiple masks
273  for(int imask=0;imask<mask_opt.size();++imask){
274  inputReader.image2geo(icol,irow,x,y);
275  maskReader[imask].geo2image(x,y,colMask,rowMask);
276  if(static_cast<int>(rowMask)!=static_cast<int>(oldRowMask)){
277  assert(rowMask>=0&&rowMask<maskReader[imask].nrOfRow());
278  try{
279  maskReader[imask].readData(lineMask[imask],GDT_Int16,static_cast<int>(rowMask));
280  }
281  catch(string errorstring){
282  cerr << errorstring << endl;
283  exit(1);
284  }
285  oldRowMask=rowMask;
286  }
287  short ivalue=0;
288  if(mask_opt.size()==masknodata_opt.size())//one invalid value for each mask
289  ivalue=masknodata_opt[imask];
290  else//use same invalid value for each mask
291  ivalue=masknodata_opt[0];
292  if(lineMask[imask][colMask]==ivalue){
293  for(int iband=0;iband<inputReader.nrOfBand();++iband)
294  lineInput[iband][icol]=nodata_opt[imask];
295  masked=true;
296  break;
297  }
298  }
299  }
300  else if(mask_opt.size()){//potentially more invalid values for single mask
301  inputReader.image2geo(icol,irow,x,y);
302  maskReader[0].geo2image(x,y,colMask,rowMask);
303  if(static_cast<int>(rowMask)!=static_cast<int>(oldRowMask)){
304  assert(rowMask>=0&&rowMask<maskReader[0].nrOfRow());
305  try{
306  maskReader[0].readData(lineMask[0],GDT_Int16,static_cast<int>(rowMask));
307  }
308  catch(string errorstring){
309  cerr << errorstring << endl;
310  exit(1);
311  }
312  oldRowMask=rowMask;
313  }
314  for(int ivalue=0;ivalue<masknodata_opt.size();++ivalue){
315  assert(masknodata_opt.size()==nodata_opt.size());
316  if(lineMask[0][colMask]==masknodata_opt[ivalue]){
317  for(int iband=0;iband<inputReader.nrOfBand();++iband)
318  lineInput[iband][icol]=nodata_opt[ivalue];
319  masked=true;
320  break;
321  }
322  }
323  }
324  for(int iband=0;iband<lineOutput.size();++iband){
325  lineOutput[iband][icol]=lineInput[iband][icol];
326  if(find(band_opt.begin(),band_opt.end(),iband)!=band_opt.end()){
327  if(!masked && codemap.find(lineInput[iband][icol])!=codemap.end()){
328  double toValue=codemap[lineInput[iband][icol]];
329  lineOutput[iband][icol]=toValue;
330  }
331  }
332  }
333  }
334  //write buffer lineOutput to output file
335  try{
336  for(int iband=0;iband<outputWriter.nrOfBand();++iband)
337  outputWriter.writeData(lineOutput[iband],GDT_Float64,irow,iband);
338  }
339  catch(string errorstring){
340  cerr << errorstring << endl;
341  exit(1);
342  }
343  //progress bar
344  progress=static_cast<float>((irow+1.0)/outputWriter.nrOfRow());
345  pfnProgress(progress,pszMessage,pProgressArg);
346  }
347  inputReader.close();
348  outputWriter.close();
349  }
350 }