我们从Python开源项目中，提取了以下7个代码示例，用于说明如何使用scipy.ndimage.grey_dilation()。
def show_transform(): for im in gen_images(n=-1, crop=True): t_im = im['T1c'] gt = im['gt'] #t_im_trans, trans_gt = rotate_transform(t_im, gt) #t_im_trans = t_im #t_im_trans = re_rescale(t_im) #t_im_trans = flip(t_im) #t_im_trans = noise(t_im, intensity=1, n=10) t_im_trans, trans_gt = ndi.percentile_filter(t_im, np.random.randint(0, 10), (2, 2, 2)), gt #t_im_trans = ndi.morphological_gradient(t_im, size=(2, 2, 2)) #t_im_trans = ndi.grey_dilation(t_im, size=(3, 3, 3)) #t_im_trans = ndi.grey_erosion(t_im_trans, size=(3, 3, 3)) print t_im_trans.dtype for _slice in np.arange(0, t_im.shape[0], t_im.shape[0]/20): im_slice = t_im[_slice] im_slice_trans = t_im_trans[_slice] gt_slice = gt[_slice] trans_gt_slice = trans_gt[_slice] vis_ims(im0=im_slice, gt0=gt_slice, im1=im_slice_trans, gt1=trans_gt_slice)
def get_bordershadow(self, bg_arr, colour): """ Gets a border/shadow with the movement state [top, right, bottom, left]. Inset or outset is random. """ bs = self.borderstate.get_sample() outset = bs['outset'] width = bs['width'] position = bs['position'] # make a copy border_arr = bg_arr.copy() # re-colour border_arr[..., 0] = colour if outset: # dilate black (erode white) border_arr[..., 1] = ndimage.grey_dilation(border_arr[..., 1], size=(width, width)) border_arr = self.arr_scroll(border_arr, position[0], position[1]) return border_arr, bg_arr else: # erode black (dilate white) border_arr[..., 1] = ndimage.grey_erosion(border_arr[..., 1], size=(width, width)) return bg_arr, border_arr
def generate_trimap(trimap,alpha): k_size = random.choice(trimap_kernel) # trimap[np.where((ndimage.grey_dilation(alpha[:,:,0],size=(k_size,k_size)) - ndimage.grey_erosion(alpha[:,:,0],size=(k_size,k_size)))!=0)] = 128 trimap[np.where((ndimage.grey_dilation(alpha[:,:,0],size=(k_size,k_size)) - alpha[:,:,0]!=0))] = 128 return trimap
def grey_dilation(func_config): def f(image_config): s1 = random.randrange(func_config.min_size, func_config.max_size + 1) s2 = random.randrange(func_config.min_size, func_config.max_size + 1) array = ndimage.grey_dilation(image_config.image, size = (s1, s2)) image = Image.fromarray(array) image_config.image = image return f
def get_bordershadow(self, bg_arr, colour): """ Gets a border/shadow with the movement state [top, right, bottom, left]. Inset or outset is random. """ bs = self.borderstate.get_sample() outset = bs['outset'] width = bs['width'] position = bs['position'] # make a copy border_arr = bg_arr.copy() # re-colour border_arr[...,0] = colour if outset: # dilate black (erode white) border_arr[...,1] = ndimage.grey_dilation(border_arr[...,1], size=(width, width)) border_arr = self.arr_scroll(border_arr, position[0], position[1]) # canvas = 255*n.ones(bg_arr.shape) # canvas = grey_blit(border_arr, canvas) # canvas = grey_blit(bg_arr, canvas) # pyplot.imshow(canvas[...,0], cmap=cm.Greys_r) # pyplot.show() return border_arr, bg_arr else: # erode black (dilate white) border_arr[...,1] = ndimage.grey_erosion(border_arr[...,1], size=(width, width)) return bg_arr, border_arr
def morph_dilation(input_image_raster, filter_size): ''' Morphological dilation of raster ''' ndim = 3 if input_image_raster.ndim == 2: input_image_raster = numpy.expand_dims(input_image_raster, axis=0) ndim = 2 if input_image_raster.ndim != 3: raise Exception("Input array has to be 3D") if ndim == 3: return ndimage.grey_dilation(input_image_raster, (1, filter_size, filter_size)) else: return ndimage.grey_dilation(input_image_raster, (1, filter_size, filter_size))[0]
