def calc_roi_pool(self):
out_data = np.zeros((self.rois_num, self.channels, self.pooled_height,
self.pooled_width))
argmax_data = np.zeros((self.rois_num, self.channels,
self.pooled_height, self.pooled_width))
for i in range(self.rois_num):
roi = self.rois[i]
roi_batch_id = int(roi[0])
roi_start_w = int(cpt.round(roi[1] * self.spatial_scale))
roi_start_h = int(cpt.round(roi[2] * self.spatial_scale))
roi_end_w = int(cpt.round(roi[3] * self.spatial_scale))
roi_end_h = int(cpt.round(roi[4] * self.spatial_scale))
roi_height = int(max(roi_end_h - roi_start_h + 1, 1))
roi_width = int(max(roi_end_w - roi_start_w + 1, 1))
x_i = self.x[roi_batch_id]
bin_size_h = float(roi_height) / float(self.pooled_height)
bin_size_w = float(roi_width) / float(self.pooled_width)
for c in range(self.channels):
for ph in range(self.pooled_height):
for pw in range(self.pooled_width):
hstart = int(math.floor(ph * bin_size_h))
wstart = int(math.floor(pw * bin_size_w))
hend = int(math.ceil((ph + 1) * bin_size_h))
wend = int(math.ceil((pw + 1) * bin_size_w))
hstart = min(max(hstart + roi_start_h, 0), self.height)
hend = min(max(hend + roi_start_h, 0), self.height)
wstart = min(max(wstart + roi_start_w, 0), self.width)
wend = min(max(wend + roi_start_w, 0), self.width)
is_empty = (hend <= hstart) or (wend <= wstart)
if is_empty:
out_data[i, c, ph, pw] = 0
else:
out_data[i, c, ph, pw] = -sys.float_info.max
argmax_data[i, c, ph, pw] = -1
for h in range(hstart, hend):
for w in range(wstart, wend):
if x_i[c, h, w] > out_data[i, c, ph, pw]:
out_data[i, c, ph, pw] = x_i[c, h, w]
argmax_data[i, c, ph,
pw] = h * self.width + w
self.outs = out_data.astype('float32')
self.argmaxes = argmax_data.astype('int64')
def test_round(self):
self.assertEqual(3.0, cpt.round(3.4))
self.assertEqual(4.0, cpt.round(3.5))
self.assertEqual(0.0, cpt.round(0.1))
self.assertEqual(0.0, cpt.round(0.0))
self.assertEqual(-0.0, cpt.round(-0.0))
self.assertEqual(-0.0, cpt.round(-0.1))
self.assertEqual(-3.0, cpt.round(-3.4))
self.assertEqual(-4.0, cpt.round(-3.5))
self.assertEqual(5.0, cpt.round(5))
self.assertRaises(TypeError, cpt.round, None)