Refactor datasets package (empty __init__.py)

Author: rbgirshick

lib/datasets/__init__.py

@@ -4,39 +4,3 @@
 # Licensed under The MIT License [see LICENSE for details]
 # Written by Ross Girshick
 # --------------------------------------------------------
-
-from .imdb import imdb
-from .pascal_voc import pascal_voc
-from . import factory
-
-import os.path as osp
-ROOT_DIR = osp.join(osp.dirname(__file__), '..', '..')
-
-# We assume your matlab binary is in your path and called `matlab'.
-# If either is not true, just add it to your path and alias it as matlab, or
-# you could change this file.
-MATLAB = 'matlab'
-
-# http://stackoverflow.com/questions/377017/test-if-executable-exists-in-python
-def _which(program):
-    import os
-    def is_exe(fpath):
-        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
-
-    fpath, fname = os.path.split(program)
-    if fpath:
-        if is_exe(program):
-            return program
-    else:
-        for path in os.environ["PATH"].split(os.pathsep):
-            path = path.strip('"')
-            exe_file = os.path.join(path, program)
-            if is_exe(exe_file):
-                return exe_file
-
-    return None
-
-if _which(MATLAB) is None:
-    msg = ("MATLAB command '{}' not found. "
-           "Please add '{}' to your PATH.").format(MATLAB, MATLAB)
-    raise EnvironmentError(msg)

lib/datasets/factory.py

@@ -9,14 +9,14 @@
 
 __sets = {}
 
-import datasets.pascal_voc
+from datasets.pascal_voc import pascal_voc
 import numpy as np
 
 def _selective_search_IJCV_top_k(split, year, top_k):
     """Return an imdb that uses the top k proposals from the selective search
     IJCV code.
     """
-    imdb = datasets.pascal_voc(split, year)
+    imdb = pascal_voc(split, year)
     imdb.roidb_handler = imdb.selective_search_IJCV_roidb
     imdb.config['top_k'] = top_k
     return imdb
@@ -26,7 +26,7 @@ def _selective_search_IJCV_top_k(split, year, top_k):
     for split in ['train', 'val', 'trainval', 'test']:
         name = 'voc_{}_{}'.format(year, split)
         __sets[name] = (lambda split=split, year=year:
-                datasets.pascal_voc(split, year))
+                pascal_voc(split, year))
 
 # Set up voc_<year>_<split>_top_<k> using selective search "quality" mode
 # but only returning the first k boxes

lib/datasets/imdb.py

@@ -11,7 +11,7 @@
 from utils.cython_bbox import bbox_overlaps
 import numpy as np
 import scipy.sparse
-import datasets
+from fast_rcnn.config import cfg
 
 class imdb(object):
     """Image database."""
@@ -69,7 +69,7 @@ def roidb(self):
 
     @property
     def cache_path(self):
-        cache_path = osp.abspath(osp.join(datasets.ROOT_DIR, 'data', 'cache'))
+        cache_path = osp.abspath(osp.join(cfg.DATA_DIR, 'cache'))
         if not os.path.exists(cache_path):
             os.makedirs(cache_path)
         return cache_path

lib/datasets/pascal_voc.py

@@ -5,21 +5,20 @@
 # Written by Ross Girshick
 # --------------------------------------------------------
 
-import datasets
-import datasets.pascal_voc
 import os
-import datasets.imdb
+from datasets.imdb import imdb
 import xml.dom.minidom as minidom
 import numpy as np
 import scipy.sparse
 import scipy.io as sio
 import utils.cython_bbox
 import cPickle
 import subprocess
+from fast_rcnn.config import cfg
 
-class pascal_voc(datasets.imdb):
+class pascal_voc(imdb):
     def __init__(self, image_set, year, devkit_path=None):
-        datasets.imdb.__init__(self, 'voc_' + year + '_' + image_set)
+        imdb.__init__(self, 'voc_' + year + '_' + image_set)
         self._year = year
         self._image_set = image_set
         self._devkit_path = self._get_default_path() if devkit_path is None \
@@ -83,7 +82,7 @@ def _get_default_path(self):
         """
         Return the default path where PASCAL VOC is expected to be installed.
         """
-        return os.path.join(datasets.ROOT_DIR, 'data', 'VOCdevkit' + self._year)
+        return os.path.join(cfg.DATA_DIR, 'VOCdevkit' + self._year)
 
     def gt_roidb(self):
         """
@@ -125,7 +124,7 @@ def selective_search_roidb(self):
         if int(self._year) == 2007 or self._image_set != 'test':
             gt_roidb = self.gt_roidb()
             ss_roidb = self._load_selective_search_roidb(gt_roidb)
-            roidb = datasets.imdb.merge_roidbs(gt_roidb, ss_roidb)
+            roidb = imdb.merge_roidbs(gt_roidb, ss_roidb)
         else:
             roidb = self._load_selective_search_roidb(None)
         with open(cache_file, 'wb') as fid:
@@ -138,7 +137,7 @@ def rpn_roidb(self):
         if int(self._year) == 2007 or self._image_set != 'test':
             gt_roidb = self.gt_roidb()
             rpn_roidb = self._load_rpn_roidb(gt_roidb)
-            roidb = datasets.imdb.merge_roidbs(gt_roidb, rpn_roidb)
+            roidb = imdb.merge_roidbs(gt_roidb, rpn_roidb)
         else:
             roidb = self._load_rpn_roidb(None)
 
@@ -154,7 +153,7 @@ def _load_rpn_roidb(self, gt_roidb):
         return self.create_roidb_from_box_list(box_list, gt_roidb)
 
     def _load_selective_search_roidb(self, gt_roidb):
-        filename = os.path.abspath(os.path.join(self.cache_path, '..',
+        filename = os.path.abspath(os.path.join(cfg.DATA_DIR,
                                                 'selective_search_data',
                                                 self.name + '.mat'))
         assert os.path.exists(filename), \
@@ -245,10 +244,10 @@ def _write_voc_results_file(self, all_boxes):
     def _do_matlab_eval(self, comp_id, output_dir='output'):
         rm_results = self.config['cleanup']
 
-        path = os.path.join(os.path.dirname(__file__),
+        path = os.path.join(cfg.ROOT_DIR, 'lib', 'datasets',
                             'VOCdevkit-matlab-wrapper')
         cmd = 'cd {} && '.format(path)
-        cmd += '{:s} -nodisplay -nodesktop '.format(datasets.MATLAB)
+        cmd += '{:s} -nodisplay -nodesktop '.format(cfg.MATLAB)
         cmd += '-r "dbstop if error; '
         cmd += 'voc_eval(\'{:s}\',\'{:s}\',\'{:s}\',\'{:s}\',{:d}); quit;"' \
                .format(self._devkit_path, comp_id,
@@ -269,6 +268,7 @@ def competition_mode(self, on):
             self.config['cleanup'] = True
 
 if __name__ == '__main__':
-    d = datasets.pascal_voc('trainval', '2007')
+    from datasets.pascal_voc import pascal_voc
+    d = pascal_voc('trainval', '2007')
     res = d.roidb
     from IPython import embed; embed()

lib/fast_rcnn/config.py

@@ -189,6 +189,12 @@
 # Root directory of project
 __C.ROOT_DIR = osp.abspath(osp.join(osp.dirname(__file__), '..', '..'))
 
+# Data directory
+__C.DATA_DIR = osp.abspath(osp.join(__C.ROOT_DIR, 'data'))
+
+# Name (or path to) the matlab executable
+__C.MATLAB = 'matlab'
+
 # Place outputs under an experiments directory
 __C.EXP_DIR = 'default'
 

tools/train_faster_rcnn_alt_opt.py

@@ -18,7 +18,6 @@
 from fast_rcnn.config import cfg, cfg_from_file, cfg_from_list, get_output_dir
 from datasets.factory import get_imdb
 from rpn.generate import imdb_proposals
-import datasets.imdb
 import argparse
 import pprint
 import numpy as np

tools/train_net.py

@@ -71,7 +71,7 @@ def get_roidb(imdb_name):
     if len(roidbs) > 1:
         for r in roidbs[1:]:
             roidb.extend(r)
-        imdb = datasets.imdb(imdb_names)
+        imdb = datasets.imdb.imdb(imdb_names)
     else:
         imdb = get_imdb(imdb_names)
     return imdb, roidb