File size: 11,755 Bytes
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
 
 
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
 
 
 
 
 
 
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
 
 
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
 
 
 
 
 
 
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
 
 
 
 
 
 
 
 
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
3a6f1f2
 
 
 
 
 
 
87c57a3
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
3a6f1f2
 
 
 
 
 
 
87c57a3
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
87c57a3
3a6f1f2
 
 
 
87c57a3
 
 
 
 
 
 
 
3a6f1f2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
import pathlib
import sys
import time
from enum import Enum
from typing import IO, cast

import aiohttp
import click
import filetype
import uvicorn
from asyncer import asyncify
from fastapi import Depends, FastAPI, File, Form, Query
from fastapi.middleware.cors import CORSMiddleware
from starlette.responses import Response
from tqdm import tqdm
from watchdog.events import FileSystemEvent, FileSystemEventHandler
from watchdog.observers import Observer

from . import _version
from .bg import remove
from .session_base import BaseSession
from .session_factory import new_session


@click.group()
@click.version_option(version=_version.get_versions()["version"])
def main() -> None:
    pass


@main.command(help="for a file as input")
@click.option(
    "-m",
    "--model",
    default="u2net",
    type=click.Choice(
        ["u2net", "u2netp", "u2net_human_seg", "u2net_cloth_seg", "silueta"]
    ),
    show_default=True,
    show_choices=True,
    help="model name",
)
@click.option(
    "-a",
    "--alpha-matting",
    is_flag=True,
    show_default=True,
    help="use alpha matting",
)
@click.option(
    "-af",
    "--alpha-matting-foreground-threshold",
    default=240,
    type=int,
    show_default=True,
    help="trimap fg threshold",
)
@click.option(
    "-ab",
    "--alpha-matting-background-threshold",
    default=10,
    type=int,
    show_default=True,
    help="trimap bg threshold",
)
@click.option(
    "-ae",
    "--alpha-matting-erode-size",
    default=10,
    type=int,
    show_default=True,
    help="erode size",
)
@click.option(
    "-om",
    "--only-mask",
    is_flag=True,
    show_default=True,
    help="output only the mask",
)
@click.option(
    "-ppm",
    "--post-process-mask",
    is_flag=True,
    show_default=True,
    help="post process the mask",
)
@click.argument(
    "input", default=(None if sys.stdin.isatty() else "-"), type=click.File("rb")
)
@click.argument(
    "output",
    default=(None if sys.stdin.isatty() else "-"),
    type=click.File("wb", lazy=True),
)
def i(model: str, input: IO, output: IO, **kwargs) -> None:
    output.write(remove(input.read(), session=new_session(model), **kwargs))


@main.command(help="for a folder as input")
@click.option(
    "-m",
    "--model",
    default="u2net",
    type=click.Choice(
        ["u2net", "u2netp", "u2net_human_seg", "u2net_cloth_seg", "silueta"]
    ),
    show_default=True,
    show_choices=True,
    help="model name",
)
@click.option(
    "-a",
    "--alpha-matting",
    is_flag=True,
    show_default=True,
    help="use alpha matting",
)
@click.option(
    "-af",
    "--alpha-matting-foreground-threshold",
    default=240,
    type=int,
    show_default=True,
    help="trimap fg threshold",
)
@click.option(
    "-ab",
    "--alpha-matting-background-threshold",
    default=10,
    type=int,
    show_default=True,
    help="trimap bg threshold",
)
@click.option(
    "-ae",
    "--alpha-matting-erode-size",
    default=10,
    type=int,
    show_default=True,
    help="erode size",
)
@click.option(
    "-om",
    "--only-mask",
    is_flag=True,
    show_default=True,
    help="output only the mask",
)
@click.option(
    "-ppm",
    "--post-process-mask",
    is_flag=True,
    show_default=True,
    help="post process the mask",
)
@click.option(
    "-w",
    "--watch",
    default=False,
    is_flag=True,
    show_default=True,
    help="watches a folder for changes",
)
@click.argument(
    "input",
    type=click.Path(
        exists=True,
        path_type=pathlib.Path,
        file_okay=False,
        dir_okay=True,
        readable=True,
    ),
)
@click.argument(
    "output",
    type=click.Path(
        exists=False,
        path_type=pathlib.Path,
        file_okay=False,
        dir_okay=True,
        writable=True,
    ),
)
def p(
    model: str, input: pathlib.Path, output: pathlib.Path, watch: bool, **kwargs
) -> None:
    session = new_session(model)

    def process(each_input: pathlib.Path) -> None:
        try:
            mimetype = filetype.guess(each_input)
            if mimetype is None:
                return
            if mimetype.mime.find("image") < 0:
                return

            each_output = (output / each_input.name).with_suffix(".png")
            each_output.parents[0].mkdir(parents=True, exist_ok=True)

            if not each_output.exists():
                each_output.write_bytes(
                    cast(
                        bytes,
                        remove(each_input.read_bytes(), session=session, **kwargs),
                    )
                )

                if watch:
                    print(
                        f"processed: {each_input.absolute()} -> {each_output.absolute()}"
                    )
        except Exception as e:
            print(e)

    inputs = list(input.glob("**/*"))
    if not watch:
        inputs = tqdm(inputs)

    for each_input in inputs:
        if not each_input.is_dir():
            process(each_input)

    if watch:
        observer = Observer()

        class EventHandler(FileSystemEventHandler):
            def on_any_event(self, event: FileSystemEvent) -> None:
                if not (
                    event.is_directory or event.event_type in ["deleted", "closed"]
                ):
                    process(pathlib.Path(event.src_path))

        event_handler = EventHandler()
        observer.schedule(event_handler, input, recursive=False)
        observer.start()

        try:
            while True:
                time.sleep(1)

        finally:
            observer.stop()
            observer.join()


@main.command(help="for a http server")
@click.option(
    "-p",
    "--port",
    default=5000,
    type=int,
    show_default=True,
    help="port",
)
@click.option(
    "-l",
    "--log_level",
    default="info",
    type=str,
    show_default=True,
    help="log level",
)
@click.option(
    "-t",
    "--threads",
    default=None,
    type=int,
    show_default=True,
    help="number of worker threads",
)
def s(port: int, log_level: str, threads: int) -> None:
    sessions: dict[str, BaseSession] = {}
    tags_metadata = [
        {
            "name": "Background Removal",
            "description": "Endpoints that perform background removal with different image sources.",
            "externalDocs": {
                "description": "GitHub Source",
                "url": "https://github.com/danielgatis/rembg",
            },
        },
    ]
    app = FastAPI(
        title="Rembg",
        description="Rembg is a tool to remove images background. That is it.",
        version=_version.get_versions()["version"],
        contact={
            "name": "Daniel Gatis",
            "url": "https://github.com/danielgatis",
            "email": "[email protected]",
        },
        license_info={
            "name": "MIT License",
            "url": "https://github.com/danielgatis/rembg/blob/main/LICENSE.txt",
        },
        openapi_tags=tags_metadata,
    )

    app.add_middleware(
        CORSMiddleware,
        allow_credentials=True,
        allow_origins=["*"],
        allow_methods=["*"],
        allow_headers=["*"],
    )

    class ModelType(str, Enum):
        u2net = "u2net"
        u2netp = "u2netp"
        u2net_human_seg = "u2net_human_seg"
        u2net_cloth_seg = "u2net_cloth_seg"
        silueta = "silueta"

    class CommonQueryParams:
        def __init__(
            self,
            model: ModelType = Query(
                default=ModelType.u2net,
                description="Model to use when processing image",
            ),
            a: bool = Query(default=False, description="Enable Alpha Matting"),
            af: int = Query(
                default=240,
                ge=0,
                le=255,
                description="Alpha Matting (Foreground Threshold)",
            ),
            ab: int = Query(
                default=10,
                ge=0,
                le=255,
                description="Alpha Matting (Background Threshold)",
            ),
            ae: int = Query(
                default=10, ge=0, description="Alpha Matting (Erode Structure Size)"
            ),
            om: bool = Query(default=False, description="Only Mask"),
            ppm: bool = Query(default=False, description="Post Process Mask"),
        ):
            self.model = model
            self.a = a
            self.af = af
            self.ab = ab
            self.ae = ae
            self.om = om
            self.ppm = ppm

    class CommonQueryPostParams:
        def __init__(
            self,
            model: ModelType = Form(
                default=ModelType.u2net,
                description="Model to use when processing image",
            ),
            a: bool = Form(default=False, description="Enable Alpha Matting"),
            af: int = Form(
                default=240,
                ge=0,
                le=255,
                description="Alpha Matting (Foreground Threshold)",
            ),
            ab: int = Form(
                default=10,
                ge=0,
                le=255,
                description="Alpha Matting (Background Threshold)",
            ),
            ae: int = Form(
                default=10, ge=0, description="Alpha Matting (Erode Structure Size)"
            ),
            om: bool = Form(default=False, description="Only Mask"),
            ppm: bool = Form(default=False, description="Post Process Mask"),
        ):
            self.model = model
            self.a = a
            self.af = af
            self.ab = ab
            self.ae = ae
            self.om = om
            self.ppm = ppm

    def im_without_bg(content: bytes, commons: CommonQueryParams) -> Response:
        return Response(
            remove(
                content,
                session=sessions.setdefault(
                    commons.model.value, new_session(commons.model.value)
                ),
                alpha_matting=commons.a,
                alpha_matting_foreground_threshold=commons.af,
                alpha_matting_background_threshold=commons.ab,
                alpha_matting_erode_size=commons.ae,
                only_mask=commons.om,
                post_process_mask=commons.ppm,
            ),
            media_type="image/png",
        )

    @app.on_event("startup")
    def startup():
        if threads is not None:
            from anyio import CapacityLimiter
            from anyio.lowlevel import RunVar

            RunVar("_default_thread_limiter").set(CapacityLimiter(threads))

    @app.get(
        path="/",
        tags=["Background Removal"],
        summary="Remove from URL",
        description="Removes the background from an image obtained by retrieving an URL.",
    )
    async def get_index(
        url: str = Query(
            default=..., description="URL of the image that has to be processed."
        ),
        commons: CommonQueryParams = Depends(),
    ):
        async with aiohttp.ClientSession() as session:
            async with session.get(url) as response:
                file = await response.read()
                return await asyncify(im_without_bg)(file, commons)

    @app.post(
        path="/",
        tags=["Background Removal"],
        summary="Remove from Stream",
        description="Removes the background from an image sent within the request itself.",
    )
    async def post_index(
        file: bytes = File(
            default=...,
            description="Image file (byte stream) that has to be processed.",
        ),
        commons: CommonQueryPostParams = Depends(),
    ):
        return await asyncify(im_without_bg)(file, commons)

    uvicorn.run(app, host="0.0.0.0", port=port, log_level=log_level)