A bug about extract patches?

[liuzhisheng1226]

In class PatchExtractor(object):

for bounding_box in bounding_boxes:
b_x_start = int(bounding_box[0])
  b_y_start = int(bounding_box[1])
  b_x_end = int(bounding_box[0]) + int(bounding_box[2])
  b_y_end = int(bounding_box[1]) + int(bounding_box[3])
  X = np.random.random_integers(b_x_start, high=b_x_end,
size=utils.NUM_POSITIVE_PATCHES_FROM_EACH_BBOX)
  Y = np.random.random_integers
(b_y_start,high=b_y_end,size=utils.NUM_POSITIVE_PATCHES_FROM_EACH_BBOX)
  for x, y in zip(X, Y):
  if int(tumor_gt_mask[y, x]) is utils.PIXEL_WHITE:
  patch = wsi_image.read_region((x * mag_factor, y * mag_factor), 0, (utils.PATCH_SIZE, utils.PATCH_SIZE))

(x,y) in bounding_box,But read_region can't ensure all patches in bounding_box...
I think you should do following check:
if(x+utils.PATCH_SIZE<b_x_end&&y+utils.PATCH_SIZE<b_y_end&&int(tumor_gt_mask[y,x] is
utils.PIXEL_WHITE):
patch=wsi_iamge.read_region()