File size: 8,849 Bytes
938e515
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5de6007
 
938e515
 
5de6007
938e515
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5de6007
938e515
 
 
 
 
 
 
 
1255c14
938e515
57522c3
 
 
938e515
 
 
 
57522c3
 
938e515
 
 
57522c3
 
938e515
 
57522c3
1255c14
57522c3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3f9e979
57522c3
3f9e979
 
13c380f
cd6cc3e
 
 
 
 
57522c3
 
cd6cc3e
 
 
 
 
 
57522c3
 
 
938e515
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
57522c3
938e515
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
57522c3
938e515
 
57522c3
938e515
 
19945e3
938e515
 
 
 
 
 
 
 
 
 
 
 
 
5de6007
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
import numpy as np
import cv2
from PIL import Image, ImageDraw

label_map = {
    "background": 0,
    "hat": 1,
    "hair": 2,
    "sunglasses": 3,
    "upper_clothes": 4,
    "skirt": 5,
    "pants": 6,
    "dress": 7,
    "belt": 8,
    "left_shoe": 9,
    "right_shoe": 10,
    "head": 11,
    "left_leg": 12,
    "right_leg": 13,
    "left_arm": 14,
    "right_arm": 15,
    "bag": 16,
    "scarf": 17,
}

def extend_arm_mask(wrist, elbow, scale):
    wrist = elbow + scale * (wrist - elbow)
    return wrist

def hole_fill(img):
    img = np.pad(img[1:-1, 1:-1], pad_width=1, mode='constant', constant_values=0)
    img_copy = img.copy()
    mask = np.zeros((img.shape[0] + 2, img.shape[1] + 2), dtype=np.uint8)

    cv2.floodFill(img, mask, (0, 0), 255)
    img_inverse = cv2.bitwise_not(img)
    dst = cv2.bitwise_or(img_copy, img_inverse)
    return dst

def refine_mask(mask):
    contours, hierarchy = cv2.findContours(mask.astype(np.uint8),
                                           cv2.RETR_CCOMP, cv2.CHAIN_APPROX_TC89_L1)
    area = []
    for j in range(len(contours)):
        a_d = cv2.contourArea(contours[j], True)
        area.append(abs(a_d))
    refine_mask = np.zeros_like(mask).astype(np.uint8)
    if len(area) != 0:
        i = area.index(max(area))
        cv2.drawContours(refine_mask, contours, i, color=255, thickness=-1)

    return refine_mask

def get_mask_location(model_type, category, model_parse: Image.Image, keypoint: dict, width=384, height=512):
    im_parse = model_parse.resize((width, height), Image.NEAREST)
    parse_array = np.array(im_parse)

    if model_type == 'hd':
        arm_width = 60
    elif model_type == 'dc':
        arm_width = 45
    else:
        raise ValueError("model_type must be 'hd' or 'dc'!")

    parse_head = (parse_array == label_map["hat"]).astype(np.float32) + \
                 (parse_array == label_map["hair"]).astype(np.float32) + \
                 (parse_array == label_map["head"]).astype(np.float32)

    parser_mask_fixed = (parse_array == label_map["left_shoe"]).astype(np.float32) + \
                        (parse_array == label_map["right_shoe"]).astype(np.float32) + \
                        (parse_array == label_map["sunglasses"]).astype(np.float32) + \
                        (parse_array == label_map["bag"]).astype(np.float32) + \
                        (parse_array == label_map["scarf"]).astype(np.float32)

    parser_mask_changeable = (parse_array == label_map["background"]).astype(np.float32)

    arms_left = (parse_array == label_map["left_arm"]).astype(np.float32)
    arms_right = (parse_array == label_map["right_arm"]).astype(np.float32)

    if category == 'dresses':
        # Combine upper body category logic
        parse_mask_upper = (parse_array == 4).astype(np.float32) + (parse_array == 7).astype(np.float32)
        parser_mask_fixed_lower_cloth = (parse_array == label_map["skirt"]).astype(np.float32) + \
                                        (parse_array == label_map["pants"]).astype(np.float32)
        parser_mask_fixed += parser_mask_fixed_lower_cloth
        parser_mask_changeable += np.logical_and(parse_array, np.logical_not(parser_mask_fixed))

        # Combine lower body category logic
        parse_mask_legs = (parse_array == 6).astype(np.float32) + \
                          (parse_array == 12).astype(np.float32) + \
                          (parse_array == 13).astype(np.float32) + \
                          (parse_array == 5).astype(np.float32)
        parser_mask_fixed += (parse_array == label_map["upper_clothes"]).astype(np.float32) + \
                             (parse_array == label_map["left_arm"]).astype(np.float32) + \
                             (parse_array == label_map["right_arm"]).astype(np.float32)
        parser_mask_changeable += np.logical_and(parse_array, np.logical_not(parser_mask_fixed))

        # Fill gaps between legs
        parse_mask_legs = cv2.dilate(parse_mask_legs.astype(np.uint8), np.ones((6, 6), np.uint8), iterations=6)

        # Combine the upper body mask with the leg mask
        parse_mask = np.maximum(parse_mask_upper, parse_mask_legs)

    elif category == 'upper_body':
        parse_mask = (parse_array == 4).astype(np.float32) + (parse_array == 7).astype(np.float32)
        parser_mask_fixed_lower_cloth = (parse_array == label_map["skirt"]).astype(np.float32) + \
                                        (parse_array == label_map["pants"]).astype(np.float32)
        parser_mask_fixed += parser_mask_fixed_lower_cloth
        parser_mask_changeable += np.logical_and(parse_array, np.logical_not(parser_mask_fixed))

    elif category == 'lower_body':
        parse_mask = (parse_array == 6).astype(np.float32) + \
                     (parse_array == 12).astype(np.float32) + \
                     (parse_array == 13).astype(np.float32) + \
                     (parse_array == 5).astype(np.float32)
        parser_mask_fixed += (parse_array == label_map["upper_clothes"]).astype(np.float32) + \
                             (parse_array == label_map["left_arm"]).astype(np.float32) + \
                             (parse_array == label_map["right_arm"]).astype(np.float32)
        parser_mask_changeable += np.logical_and(parse_array, np.logical_not(parser_mask_fixed))
    else:
        raise NotImplementedError

    # Load pose points
    pose_data = keypoint["pose_keypoints_2d"]
    pose_data = np.array(pose_data)
    pose_data = pose_data.reshape((-1, 2))

    im_arms_left = Image.new('L', (width, height))
    im_arms_right = Image.new('L', (width, height))
    arms_draw_left = ImageDraw.Draw(im_arms_left)
    arms_draw_right = ImageDraw.Draw(im_arms_right)
    if category == 'dresses' or category == 'upper_body':
        shoulder_right = np.multiply(tuple(pose_data[2][:2]), height / 512.0)
        shoulder_left = np.multiply(tuple(pose_data[5][:2]), height / 512.0)
        elbow_right = np.multiply(tuple(pose_data[3][:2]), height / 512.0)
        elbow_left = np.multiply(tuple(pose_data[6][:2]), height / 512.0)
        wrist_right = np.multiply(tuple(pose_data[4][:2]), height / 512.0)
        wrist_left = np.multiply(tuple(pose_data[7][:2]), height / 512.0)
        ARM_LINE_WIDTH = int(arm_width / 512 * height)
        size_left = [shoulder_left[0] - ARM_LINE_WIDTH // 2, shoulder_left[1] - ARM_LINE_WIDTH // 2, shoulder_left[0] + ARM_LINE_WIDTH // 2, shoulder_left[1] + ARM_LINE_WIDTH // 2]
        size_right = [shoulder_right[0] - ARM_LINE_WIDTH // 2, shoulder_right[1] - ARM_LINE_WIDTH // 2, shoulder_right[0] + ARM_LINE_WIDTH // 2,
                      shoulder_right[1] + ARM_LINE_WIDTH // 2]

        if wrist_right[0] <= 1. and wrist_right[1] <= 1.:
            im_arms_right = arms_right
        else:
            wrist_right = extend_arm_mask(wrist_right, elbow_right, 1.2)
            arms_draw_right.line(np.concatenate((shoulder_right, elbow_right, wrist_right)).astype(np.uint16).tolist(), 'white', ARM_LINE_WIDTH, 'curve')
            arms_draw_right.arc(size_right, 0, 360, 'white', ARM_LINE_WIDTH // 2)

        if wrist_left[0] <= 1. and wrist_left[1] <= 1.:
            im_arms_left = arms_left
        else:
            wrist_left = extend_arm_mask(wrist_left, elbow_left, 1.2)
            arms_draw_left.line(np.concatenate((wrist_left, elbow_left, shoulder_left)).astype(np.uint16).tolist(), 'white', ARM_LINE_WIDTH, 'curve')
            arms_draw_left.arc(size_left, 0, 360, 'white', ARM_LINE_WIDTH // 2)

        hands_left = np.logical_and(np.logical_not(im_arms_left), arms_left)
        hands_right = np.logical_and(np.logical_not(im_arms_right), arms_right)
        parser_mask_fixed += hands_left + hands_right

    parser_mask_fixed = np.logical_or(parser_mask_fixed, parse_head)
    parse_mask = cv2.dilate(parse_mask, np.ones((5, 5), np.uint8), iterations=5)
    if category == 'dresses' or category == 'upper_body':
        neck_mask = (parse_array == 18).astype(np.float32)
        neck_mask = cv2.dilate(neck_mask, np.ones((5, 5), np.uint8), iterations=1)
        neck_mask = np.logical_and(neck_mask, np.logical_not(parse_head))
        parse_mask = np.logical_or(parse_mask, neck_mask)
        arm_mask = cv2.dilate(np.logical_or(im_arms_left, im_arms_right).astype('float32'), np.ones((5, 5), np.uint8), iterations=4)
        parse_mask += np.logical_or(parse_mask, arm_mask)

    parse_mask = np.logical_and(parser_mask_changeable, np.logical_not(parse_mask))

    parse_mask_total = np.logical_or(parse_mask, parser_mask_fixed)
    inpaint_mask = 1 - parse_mask_total
    img = np.where(inpaint_mask, 255, 0)
    dst = hole_fill(img.astype(np.uint8))
    dst = refine_mask(dst)
    inpaint_mask = dst / 255 * 1
    mask = Image.fromarray(inpaint_mask.astype(np.uint8) * 255)
    mask_gray = Image.fromarray(inpaint_mask.astype(np.uint8) * 127)

    return mask, mask_gray