Files
ubuntu-post-install/vendor/paintplus/backend/app/services/local_inpaint.py
T
Claude b2d064573f Move ai-stack and paintplus vendored source under vendor/
Matches the existing vendor/easy-asterisk convention (used by
services/asterisk.sh) instead of two one-off top-level directories that
cluttered the repo root and didn't look like anything else next to
setup.sh, lib/, services/, extras/. Only the two services' own SRC_DIR
path resolution and header comments needed updating — nothing else in
the repo referenced the old ./ai-stack / ./paintplus paths.

Also documents vendor/ in README.md's Layout section.
2026-08-04 12:55:09 +00:00

83 lines
2.3 KiB
Python

"""
Local inpainting operations — LaMa, OpenCV, and background removal.
All operations use GPU automatically if PyTorch detects one, CPU otherwise.
"""
from io import BytesIO
from PIL import Image
import numpy as np
import cv2
# Lazy-loaded LaMa model (downloaded on first use, ~100MB)
_lama = None
def get_lama():
global _lama
if _lama is None:
from simple_lama_inpainting import SimpleLama
_lama = SimpleLama()
return _lama
def lama_available() -> bool:
try:
import simple_lama_inpainting # noqa: F401
return True
except ImportError:
return False
def lama_inpaint(image_bytes: bytes, mask_bytes: bytes) -> bytes:
"""LaMa structural inpainting — best for object removal and large fills."""
lama = get_lama()
image = Image.open(BytesIO(image_bytes)).convert("RGB")
mask = Image.open(BytesIO(mask_bytes)).convert("L")
if mask.size != image.size:
mask = mask.resize(image.size, Image.Resampling.LANCZOS)
result = lama(image, mask)
buf = BytesIO()
result.save(buf, format="PNG")
return buf.getvalue()
def opencv_inpaint(image_bytes: bytes, mask_bytes: bytes, method: str = "telea") -> bytes:
"""OpenCV fast structural inpainting — CPU only, milliseconds."""
image = Image.open(BytesIO(image_bytes)).convert("RGB")
mask = Image.open(BytesIO(mask_bytes)).convert("L")
if mask.size != image.size:
mask = mask.resize(image.size, Image.Resampling.LANCZOS)
img_np = np.array(image)
mask_np = np.array(mask)
_, mask_bin = cv2.threshold(mask_np, 127, 255, cv2.THRESH_BINARY)
flags = cv2.INPAINT_TELEA if method == "telea" else cv2.INPAINT_NS
result = cv2.inpaint(img_np, mask_bin, inpaintRadius=3, flags=flags)
buf = BytesIO()
Image.fromarray(result).save(buf, format="PNG")
return buf.getvalue()
def remove_background_rembg(image_bytes: bytes) -> bytes:
"""Background removal using rembg."""
from rembg import remove
return remove(image_bytes)
def rembg_available() -> bool:
try:
import rembg # noqa: F401
return True
except ImportError:
return False
def gpu_available() -> bool:
try:
import torch
return torch.cuda.is_available()
except ImportError:
return False