fix: suppress ML library stdout noise in ocr.py and upscale.py

PaddleOCR prints download/init messages to stdout which corrupts the
JSON result that the bridge expects. Same risk with basicsr/realesrgan.
Applied the same fd-level stdout redirect pattern already used in
remove_bg.py: redirect fd 1 to stderr during ML work, restore for
the JSON result. Also added show_log=False to PaddleOCR constructor.
This commit is contained in:
Siddharth Kumar Sah
2026-04-10 01:22:53 +08:00
parent e55253dee0
commit c0b419de21
2 changed files with 46 additions and 24 deletions
+31 -19
View File
@@ -33,27 +33,39 @@ def run_tesseract(input_path, language):
def run_paddleocr(input_path, language):
"""Run PaddleOCR."""
os.environ["PADDLE_PDX_DISABLE_MODEL_SOURCE_CHECK"] = "True"
from paddleocr import PaddleOCR
from gpu import gpu_available
# Map API language codes to PaddleOCR codes
paddle_lang_map = {"en": "en", "de": "latin", "fr": "latin", "es": "latin", "zh": "ch", "ja": "japan", "ko": "korean"}
paddle_lang = paddle_lang_map.get(language, "en")
# Redirect stdout to stderr so PaddleOCR download/init messages
# cannot contaminate our JSON result on stdout.
stdout_fd = os.dup(1)
os.dup2(2, 1)
try:
from paddleocr import PaddleOCR
from gpu import gpu_available
# Map API language codes to PaddleOCR codes
paddle_lang_map = {"en": "en", "de": "latin", "fr": "latin", "es": "latin", "zh": "ch", "ja": "japan", "ko": "korean"}
paddle_lang = paddle_lang_map.get(language, "en")
emit_progress(20, "Loading")
ocr = PaddleOCR(lang=paddle_lang, use_gpu=gpu_available(), show_log=False)
emit_progress(30, "Scanning")
result = ocr.ocr(input_path)
emit_progress(70, "Extracting text")
text = "\n".join(
[
line[1][0]
for res in result
if res
for line in res
if line and line[1]
]
)
finally:
# Restore stdout
os.dup2(stdout_fd, 1)
os.close(stdout_fd)
emit_progress(20, "Loading")
ocr = PaddleOCR(lang=paddle_lang, use_gpu=gpu_available())
emit_progress(30, "Scanning")
result = ocr.ocr(input_path)
emit_progress(70, "Extracting text")
text = "\n".join(
[
line[1][0]
for res in result
if res
for line in res
if line and line[1]
]
)
return text, "paddleocr"
+15 -5
View File
@@ -31,11 +31,21 @@ def main():
# Try Real-ESRGAN first
try:
from basicsr.archs.rrdbnet_arch import RRDBNet
from realesrgan import RealESRGANer
from gpu import gpu_available
import numpy as np
import torch
# Redirect stdout to stderr so basicsr/realesrgan init messages
# cannot contaminate our JSON result on stdout.
stdout_fd = os.dup(1)
os.dup2(2, 1)
try:
from basicsr.archs.rrdbnet_arch import RRDBNet
from realesrgan import RealESRGANer
from gpu import gpu_available
import numpy as np
import torch
finally:
# Restore stdout after imports
os.dup2(stdout_fd, 1)
os.close(stdout_fd)
if not os.path.exists(REALESRGAN_MODEL_PATH):
raise FileNotFoundError(f"RealESRGAN model not found: {REALESRGAN_MODEL_PATH}")