Spaces:
Sleeping
Sleeping
File size: 6,340 Bytes
565cb88 bdf9307 565cb88 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 |
import cv2
import matplotlib.pyplot as plt
import numpy as np
import torch
from PIL import Image
def fast_process(
annotations,
image,
device,
scale,
better_quality=False,
mask_random_color=True,
bbox=None,
points=None,
use_retina=True,
withContours=True,
):
if isinstance(annotations[0], dict):
annotations = [annotation["segmentation"] for annotation in annotations]
original_h = image.height
original_w = image.width
if better_quality:
if isinstance(annotations[0], torch.Tensor):
annotations = np.array(annotations.cpu())
for i, mask in enumerate(annotations):
mask = cv2.morphologyEx(
mask.astype(np.uint8), cv2.MORPH_CLOSE, np.ones((3, 3), np.uint8)
)
annotations[i] = cv2.morphologyEx(
mask.astype(np.uint8), cv2.MORPH_OPEN, np.ones((8, 8), np.uint8)
)
if device == "cpu":
annotations = np.array(annotations)
inner_mask = fast_show_mask(
annotations,
plt.gca(),
random_color=mask_random_color,
bbox=bbox,
retinamask=use_retina,
target_height=original_h,
target_width=original_w,
)
else:
if isinstance(annotations[0], np.ndarray):
annotations = np.array(annotations)
annotations = torch.from_numpy(annotations)
inner_mask = fast_show_mask_gpu(
annotations,
plt.gca(),
random_color=mask_random_color,
bbox=bbox,
retinamask=use_retina,
target_height=original_h,
target_width=original_w,
)
if isinstance(annotations, torch.Tensor):
annotations = annotations.cpu().numpy()
if withContours:
contour_all = []
temp = np.zeros((original_h, original_w, 1))
for i, mask in enumerate(annotations):
if type(mask) == dict:
mask = mask["segmentation"]
annotation = mask.astype(np.uint8)
if use_retina == False:
annotation = cv2.resize(
annotation,
(original_w, original_h),
interpolation=cv2.INTER_NEAREST,
)
contours, _ = cv2.findContours(
annotation, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE
)
for contour in contours:
contour_all.append(contour)
cv2.drawContours(temp, contour_all, -1, (255, 255, 255), 2 // scale)
color = np.array([0 / 255, 0 / 255, 255 / 255, 0.9])
contour_mask = temp / 255 * color.reshape(1, 1, -1)
image = image.convert("RGBA")
overlay_inner = Image.fromarray((inner_mask * 255).astype(np.uint8), "RGBA")
image.paste(overlay_inner, (0, 0), overlay_inner)
if withContours:
overlay_contour = Image.fromarray((contour_mask * 255).astype(np.uint8), "RGBA")
image.paste(overlay_contour, (0, 0), overlay_contour)
# return image
return inner_mask
# CPU post process
def fast_show_mask(
annotation,
ax,
random_color=False,
bbox=None,
retinamask=True,
target_height=960,
target_width=960,
):
mask_sum = annotation.shape[0]
height = annotation.shape[1]
weight = annotation.shape[2]
# annotation is sorted by area
areas = np.sum(annotation, axis=(1, 2))
sorted_indices = np.argsort(areas)[::1]
annotation = annotation[sorted_indices]
index = (annotation != 0).argmax(axis=0)
if random_color == True:
color = np.random.random((mask_sum, 1, 1, 3))
else:
color = np.ones((mask_sum, 1, 1, 3)) * np.array(
[30 / 255, 144 / 255, 255 / 255]
)
transparency = np.ones((mask_sum, 1, 1, 1)) * 0.6
visual = np.concatenate([color, transparency], axis=-1)
mask_image = np.expand_dims(annotation, -1) * visual
mask = np.zeros((height, weight, 4))
h_indices, w_indices = np.meshgrid(
np.arange(height), np.arange(weight), indexing="ij"
)
indices = (index[h_indices, w_indices], h_indices, w_indices, slice(None))
mask[h_indices, w_indices, :] = mask_image[indices]
if bbox is not None:
x1, y1, x2, y2 = bbox
ax.add_patch(
plt.Rectangle(
(x1, y1), x2 - x1, y2 - y1, fill=False, edgecolor="b", linewidth=1
)
)
if retinamask == False:
mask = cv2.resize(
mask, (target_width, target_height), interpolation=cv2.INTER_NEAREST
)
return mask
def fast_show_mask_gpu(
annotation,
ax,
random_color=False,
bbox=None,
retinamask=True,
target_height=960,
target_width=960,
):
device = annotation.device
mask_sum = annotation.shape[0]
height = annotation.shape[1]
weight = annotation.shape[2]
areas = torch.sum(annotation, dim=(1, 2))
sorted_indices = torch.argsort(areas, descending=False)
annotation = annotation[sorted_indices]
# find the first non-zero subscript for each position
index = (annotation != 0).to(torch.long).argmax(dim=0)
if random_color == True:
color = torch.rand((mask_sum, 1, 1, 3)).to(device)
else:
color = torch.ones((mask_sum, 1, 1, 3)).to(device) * torch.tensor(
[30 / 255, 144 / 255, 255 / 255]
).to(device)
transparency = torch.ones((mask_sum, 1, 1, 1)).to(device) * 0.6
visual = torch.cat([color, transparency], dim=-1)
mask_image = torch.unsqueeze(annotation, -1) * visual
# index
mask = torch.zeros((height, weight, 4)).to(device)
h_indices, w_indices = torch.meshgrid(torch.arange(height), torch.arange(weight))
indices = (index[h_indices, w_indices], h_indices, w_indices, slice(None))
# make updates based on indices
mask[h_indices, w_indices, :] = mask_image[indices]
mask_cpu = mask.cpu().numpy()
if bbox is not None:
x1, y1, x2, y2 = bbox
ax.add_patch(
plt.Rectangle(
(x1, y1), x2 - x1, y2 - y1, fill=False, edgecolor="b", linewidth=1
)
)
if retinamask == False:
mask_cpu = cv2.resize(
mask_cpu, (target_width, target_height), interpolation=cv2.INTER_NEAREST
)
return mask_cpu
|