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import json
import cv2
import numpy as np
from loguru import logger
from lama_cleaner.helper import download_model
from lama_cleaner.plugins.base_plugin import BasePlugin
from lama_cleaner.plugins.segment_anything import SamPredictor, sam_model_registry
# 从小到大
SEGMENT_ANYTHING_MODELS = {
"vit_b": {
"url": "https://dl.fbaipublicfiles.com/segment_anything/sam_vit_b_01ec64.pth",
"md5": "01ec64d29a2fca3f0661936605ae66f8",
},
"vit_l": {
"url": "https://dl.fbaipublicfiles.com/segment_anything/sam_vit_l_0b3195.pth",
"md5": "0b3195507c641ddb6910d2bb5adee89c",
},
"vit_h": {
"url": "https://dl.fbaipublicfiles.com/segment_anything/sam_vit_h_4b8939.pth",
"md5": "4b8939a88964f0f4ff5f5b2642c598a6",
},
}
class InteractiveSeg(BasePlugin):
name = "InteractiveSeg"
def __init__(self, model_name, device):
super().__init__()
model_path = download_model(
SEGMENT_ANYTHING_MODELS[model_name]["url"],
SEGMENT_ANYTHING_MODELS[model_name]["md5"],
)
logger.info(f"SegmentAnything model path: {model_path}")
self.predictor = SamPredictor(
sam_model_registry[model_name](checkpoint=model_path).to(device)
)
self.prev_img_md5 = None
def __call__(self, rgb_np_img, files, form):
clicks = json.loads(form["clicks"])
return self.forward(rgb_np_img, clicks, form["img_md5"])
def forward(self, rgb_np_img, clicks, img_md5):
input_point = []
input_label = []
for click in clicks:
x = click[0]
y = click[1]
input_point.append([x, y])
input_label.append(click[2])
if img_md5 and img_md5 != self.prev_img_md5:
self.prev_img_md5 = img_md5
self.predictor.set_image(rgb_np_img)
masks, scores, _ = self.predictor.predict(
point_coords=np.array(input_point),
point_labels=np.array(input_label),
multimask_output=False,
)
mask = masks[0].astype(np.uint8) * 255
# TODO: how to set kernel size?
kernel_size = 9
mask = cv2.dilate(
mask, np.ones((kernel_size, kernel_size), np.uint8), iterations=1
)
# fronted brush color "ffcc00bb"
res_mask = np.zeros((mask.shape[0], mask.shape[1], 4), dtype=np.uint8)
res_mask[mask == 255] = [255, 203, 0, int(255 * 0.73)]
res_mask = cv2.cvtColor(res_mask, cv2.COLOR_BGRA2RGBA)
return res_mask
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