intg pascal_dataset<Tdata>::count_samples() {
total_difficult = 0;
total_truncated = 0;
total_occluded = 0;
total_ignored = 0;
total_samples = 0;
std::string xmlpath;
boost::filesystem::path p(annroot);
if (!boost::filesystem::exists(p))
eblthrow("Annotation path " << annroot << " does not exist.");
std::cout << "Counting number of samples in " << annroot << " ..."
<< std::endl;
// find all xml files recursively
std::list<std::string> *files = find_fullfiles(annroot, XML_PATTERN, NULL,
false, true);
if (!files || files->size() == 0)
eblthrow("no xml files found in " << annroot << " using file pattern "
<< XML_PATTERN);
std::cout << "Found " << files->size() << " xml files." << std::endl;
for (std::list<std::string>::iterator i = files->begin(); i != files->end(); ++i) {
xmlpath = *i;
// parse xml
DomParser parser;
parser.parse_file(xmlpath);
if (parser) {
// initialize root node and list
const Node* pNode = parser.get_document()->get_root_node();
Node::NodeList list = pNode->get_children();
// parse all objects in image
for(Node::NodeList::iterator iter = list.begin();
iter != list.end(); ++iter) {
if (!strcmp((*iter)->get_name().c_str(), "object")) {
// check for difficult flag in object node
Node::NodeList olist = (*iter)->get_children();
count_sample(olist);
}
}
}
}
if (files) delete files;
std::cout << "Found: " << total_samples << " samples, including ";
std::cout << total_difficult << " difficult, " << total_truncated;
std::cout << " truncated and " << total_occluded << " occluded." << std::endl;
ignore_difficult ? std::cout << "Ignoring" : std::cout << "Using";
std::cout << " difficult samples." << std::endl;
ignore_truncated ? std::cout << "Ignoring" : std::cout << "Using";
std::cout << " truncated samples." << std::endl;
ignore_occluded ? std::cout << "Ignoring" : std::cout << "Using";
std::cout << " occluded samples." << std::endl;
total_samples = total_samples - total_ignored;
return total_samples;
}
idx<T> matlab::load_matrix(const char *name) {
if (!fp) eblthrow("null file pointer");
#ifdef __MATLAB__
// get variable corresponding to name
mxArray *var = matGetVariable(fp, name);
if (!var)
eblthrow("variable \"" << name << "\" not found in matlab object");
int ndims = mxGetNumberOfDimensions(var);
if (ndims > MAXDIMS)
eblthrow("cannot load matrix with " << ndims
<< " dimensions, libidx was compiled to support " << MAXDIMS
<< " at most. Modify MAXDIMS and recompile.");
intg nelements = mxGetNumberOfElements(var);
const mwSize *dims = mxGetDimensions(var);
// allocate matrix
idxdim d;
for (uint i = 0; i < ndims; ++i)
d.insert_dim(i, dims[i]);
idx<T> m(d);
// load data
mxClassID type = mxGetClassID(var);
switch (type) {
case mxCELL_CLASS: eblthrow("cannot load matrix from type cell"); break ;
case mxSTRUCT_CLASS: eblthrow("cannot load matrix from type struct"); break ;
case mxLOGICAL_CLASS: eblthrow("cannot load matrix from type logical"); break ;
case mxFUNCTION_CLASS: eblthrow("cannot load matrix from type function"); break ;
case mxINT8_CLASS:
case mxUINT8_CLASS:
case mxCHAR_CLASS: read_cast_matrix<ubyte>(var, m); break ;
case mxINT16_CLASS: read_cast_matrix<int16>(var, m); break ;
case mxUINT16_CLASS: read_cast_matrix<uint16>(var, m); break ;
case mxINT32_CLASS: read_cast_matrix<uint32>(var, m); break ;
case mxUINT32_CLASS: read_cast_matrix<uint32>(var, m); break ;
case mxINT64_CLASS: read_cast_matrix<int64>(var, m); break ;
case mxUINT64_CLASS: read_cast_matrix<uint64>(var, m); break ;
case mxSINGLE_CLASS: read_cast_matrix<float>(var, m); break ;
case mxDOUBLE_CLASS: read_cast_matrix<double>(var, m); break ;
case mxVOID_CLASS: eblthrow("unsupported type: void");
case mxUNKNOWN_CLASS: eblthrow("unknown type"); break ;
}
// delete array
if (var) mxDestroyArray(var);
#else
idx<T> m;
#endif
return m;
}
idxdim get_matrix_dims(const char *filename) {
// open file
FILE *fp = fopen(filename, "rb");
if (!fp)
eblthrow("failed to open " << filename);
// read it
int magic;
idxdim d = read_matrix_header(fp, magic);
fclose(fp);
return d;
}
bool is_matrix(const char *filename) {
try {
// open file
FILE *fp = fopen(filename, "rb");
if (!fp)
eblthrow("failed to open " << filename);
int magic = 0;
read_matrix_header(fp, magic);
} catch (eblexception &e) { return false; }
return true;
}
string& string::operator=(char *v) {
if (!v)
return *this;
size_t lv = strlen(v);
if (lv == 0)
return *this;
if (!resize(lv + 1))
eblthrow("failed to resize string");
strcpy(s, v);
return *this;
}
string& string::operator<<(const char *v) {
if (v == NULL)
return *this;
size_t lv = strlen(v), le = size();
if (lv == 0)
return *this;
lv += le + 1;
if (!resize(lv))
eblthrow("failed to resize string");
strcpy(s + le, v);
return *this;
}
idxdim read_matrix_header(FILE *fp, int &magic) {
int ndim, v, magic_vincent;
int ndim_min = 3; // std header requires at least 3 dims even empty ones.
idxdim dims;
// read magic number
if (fread(&magic, sizeof (int), 1, fp) != 1) {
fclose(fp);
eblthrow("cannot read magic number");
}
magic_vincent = endian(magic);
magic_vincent &= ~0xF; // magic contained in higher bits
// read number of dimensions
if (is_magic(magic)) { // regular magic number, read next number
if (fread(&ndim, sizeof (int), 1, fp) != 1) {
fclose(fp);
eblthrow("cannot read number of dimensions");
}
// check number is valid
if (ndim > MAXDIMS) {
fclose(fp);
eblthrow("too many dimensions: " << ndim << " (MAXDIMS = "
<< MAXDIMS << ").");
}
} else if (is_magic_vincent(magic_vincent)) { // vincent magic number
// ndim is contained in lower bits of the magic number
ndim = endian(magic) & 0xF;
ndim_min = ndim;
magic = magic_vincent;
} else { // unkown magic
fclose(fp);
eblthrow("unknown magic number: " << reinterpret_cast<void*>(magic)
<< " or " << magic << " vincent: " << magic_vincent);
}
// read each dimension
for (int i = 0; (i < ndim) || (i < ndim_min); ++i) {
if (fread(&v, sizeof (int), 1, fp) != 1) {
fclose(fp);
eblthrow("failed to read matrix dimensions");
}
// if vincent, convert to endian first
if (is_magic_vincent(magic_vincent))
v = endian(v);
if (i < ndim) { // ndim may be less than ndim_min
if (v <= 0) { // check that dimension is valid
fclose(fp);
eblthrow("dimension is negative or zero");
}
dims.insert_dim(i, v); // insert dimension
}
}
return dims;
}
int get_matrix_type(const char *filename) {
// open file
FILE *fp = fopen(filename, "rb");
if (!fp)
eblthrow("failed to open " << filename);
int magic = 0;
if (has_multiple_matrices(filename)) {
// first read offsets matrix
idx<int64> p = load_matrix<int64>(fp);
// read 2nd matrix header
try {
read_matrix_header(fp, magic);
} catch (ebl::eblexception &e) {}
return magic;
} else {
// header: read magic number
try {
read_matrix_header(fp, magic);
} catch (ebl::eblexception &e) {}
return magic;
}
}
file::file(const char *filename, const char *mode) : refcounter(0) {
fp = fopen(filename, mode);
if (!fp)
eblthrow("failed to open " << filename);
}
