def _save_image_msg(img_msg, filename):
pil_img = image_snappy_helper.imgmsg_to_pil(img_msg, rgba=False)
if pil_img.mode in ('RGB', 'RGBA'):
pil_img = pil_img.convert('RGB')
pil_img = image_snappy_helper.pil_bgr2rgb(pil_img)
pil_img = pil_img.convert('RGB')
pil_img.save(filename)
def set_image(self, image_msg, image_topic, image_stamp):
self._image_msg = image_msg
if image_msg:
self._image = image_snappy_helper.imgmsg_to_pil(image_msg)
else:
self._image = None
self._image_topic = image_topic
self._image_stamp = image_stamp
self.put_image_into_scene()
def set_image(self, image_msg, image_topic, image_stamp):
with self._image_lock:
self._image_msg = image_msg
if image_msg:
self._image = image_snappy_helper.imgmsg_to_pil(image_msg)
else:
self._image = None
self._image_surface = None
self._image_topic = image_topic
self._image_stamp = image_stamp
wx.CallAfter(self.parent.Refresh)
def _load_thumbnail(self, topic, stamp, thumbnail_details):
"""
Loads the thumbnail from the bag
"""
(thumbnail_height,) = thumbnail_details
# Find position of stamp using index
t = rospy.Time.from_sec(stamp)
bag, entry = self.timeline.get_entry(t, topic)
if not entry:
return None, None
pos = entry.position
# Not in the cache; load from the bag file
with self.timeline._bag_lock:
msg_topic, msg, msg_stamp = bag._read_message(pos)
# Convert from ROS image to PIL image
try:
pil_image = image_snappy_helper.imgmsg_to_pil(msg)
except Exception, ex:
print >> sys.stderr, 'Error loading image on topic %s: %s' % (topic, str(ex))
return None, None
