Peter M. Groen / openbr

Commit b57870af61202a09bbf22c457c2e92a11b513982

Authored by bklare
1 parent 6ff74e33

Output to gallery that can be ingested into matlab

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Showing 2 changed files with 120 additions and 0 deletions
openbr/plugins/gallery/matlab.cpp 0 → 100644
  View file @b57870a
  1 +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  2 + * Copyright 2015 Rank One Corporation *
  3 + * *
  4 + * Licensed under the Apache License, Version 2.0 (the "License"); *
  5 + * you may not use this file except in compliance with the License. *
  6 + * You may obtain a copy of the License at *
  7 + * *
  8 + * http://www.apache.org/licenses/LICENSE-2.0 *
  9 + * *
  10 + * Unless required by applicable law or agreed to in writing, software *
  11 + * distributed under the License is distributed on an "AS IS" BASIS, *
  12 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
  13 + * See the License for the specific language governing permissions and *
  14 + * limitations under the License. *
  15 + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  16 +
  17 +#include <openbr/plugins/openbr_internal.h>
  18 +
  19 +namespace br
  20 +{
  21 +/*!
  22 + * \ingroup galleries
  23 + * \brief A simple matrix container format that is easily read into matlab.
  24 + * Templates are concatenated into column vectors, and output into a single matrix.
  25 + * Note that this is not intended to read in .matlab files, as this is simply
  26 + * a quick and dirty for analyzing data in a more interactive environment.
  27 + * Use the loadOpenBR.m script to ingest the resultant file into Matlab
  28 + * \author Brendan Klare \cite bklare
  29 + */
  30 +class matlabGallery : public FileGallery
  31 +{
  32 + Q_OBJECT
  33 +
  34 + TemplateList templates;
  35 +
  36 + ~matlabGallery()
  37 + {
  38 + if (!f.open(QFile::WriteOnly))
  39 + qFatal("Failed to open %s for writting.", qPrintable(file));
  40 +
  41 + int r = templates.first().m().rows;
  42 + int c = templates.first().m().cols;
  43 +
  44 + for (int i = templates.size() - 1; i >= 0; i--) {
  45 + if (templates[i].m().rows != r || templates[i].m().cols != c) {
  46 + qDebug() << templates[i].file.name << " : template not appended to gallery b/c rows and col dimensions differ.";
  47 + templates.removeAt(i);
  48 + }
  49 + }
  50 +
  51 + cv::Mat m(r * c, templates.size(), CV_32FC1);
  52 + for (int i = 0; i < templates.size(); i++) {
  53 + cv::Mat temp;
  54 + templates[i].m().copyTo(temp);
  55 + temp.reshape(1, 1);
  56 + m.col(i) = temp;
  57 + }
  58 +
  59 + f.write((const char *) &m.rows, 4);
  60 + f.write((const char *) &m.cols, 4);
  61 + qint64 rowSize = m.cols * sizeof(float);
  62 + for (int i = 0; i < m.rows; i++)
  63 + f.write((const char *) m.row(i).data, rowSize);
  64 +
  65 + f.close();
  66 + }
  67 +
  68 + TemplateList readBlock(bool *done)
  69 + {
  70 + qDebug() << "matlabGallery is not intended to be read. This gallery is meant for export only.";
  71 + TemplateList t;
  72 + *done = false;
  73 + return t;
  74 + }
  75 +
  76 + void write(const Template &t)
  77 + {
  78 + if (t.m().type() != CV_32FC1)
  79 + qDebug() << t.file.name << ": template not appended to gallery b/c it must be type CV_32FC1.";
  80 + else
  81 + templates.append(t);
  82 + }
  83 +
  84 + void init()
  85 + {
  86 + FileGallery::init();
  87 + }
  88 +};
  89 +
  90 +BR_REGISTER(Gallery, matlabGallery)
  91 +
  92 +#include "gallery/matlab.moc"
... ...
scripts/matlab/loadOpenBR.m 0 → 100644
  View file @b57870a
  1 +% This script will read a matrix container format where the first two entires are 32-bit ints
  2 +% specifying the number of rows and columns (respectively). The remaining buffer is 32-bit floats
  3 +% with all the matrix contents, in row-major order.
  4 +function [x] = loadBin(filename,reverse)
  5 +
  6 + if nargin < 2,
  7 + % Use this option if the data was serlialized in column-major order.
  8 + reverse = false;
  9 + end
  10 +
  11 + fileStream = fopen(filename,'r');
  12 + if fileStream == -1,
  13 + fprintf('Error opening file %s\n',filename);
  14 + x = 0;
  15 + return
  16 + end
  17 +
  18 + r = fread(fileStream,1,'int32');
  19 + c = fread(fileStream,1,'int32');
  20 + x = fread(fileStream,[c r],'float32');
  21 + x = x'; % Matlab reads the file in column-major order
  22 + fclose(fileStream);
  23 +
  24 + if reverse,
  25 + sz = size(x);
  26 + x = x';
  27 + x = reshape(x,sz);
  28 + end
... ...