Multiple pages in parallel?
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Matthew Lai
Mar 10, 2018, 2:50:42 PM3/10/18
to tesseract-ocr
Hello!
According to the FAQ[1], if I run tesseract on a multi-page image, it should process the pages in parallel.
I am converting a 10-page TIF (in one file) into PDF, and looking at top, it seems like tesseract never uses more than about 250% CPU (I have 16 cores / 32 threads on my machine).
Am I doing something wrong?
tesseract combined.tif out pdf
Tesseract Open Source OCR Engine v4.00.00alpha with Leptonica
Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
OSD: Weak margin (6.98) for 914 blob text block, but using orientation anyway: 0
tesseract -v (from Debian Testing):
tesseract 4.00.00alpha
leptonica-1.74.1
libgif 5.1.4 : libjpeg 6b (libjpeg-turbo 1.5.1) : libpng 1.6.28 : libtiff 4.0.8 : zlib 1.2.8 : libwebp 0.5.2 : libopenjp2 2.1.2
Found AVX
Found SSE
Thanks!
Matthew
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