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HiI just tried some, without real success
could I learn digits from pictures ? maybe this font is not well recognized
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While tesseract version 3.05 (and older) handle inverted image (dark background and light text) without problem, for 4.x version use dark text on light background.
Tesseract works best on images which have a DPI of at least 300 dpi, so it may be beneficial to resize images. For more information see the FAQ."Willus Dotkom" made interesting test for Optimal image resolution with suggestion for optimal Height of capital letter in pixels:
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tesseract 5.1.0-70-g0df5leptonica-1.83.0 (Jun 24 2022, 17:48:50) [MSC v.1929 LIB Release x64]libgif 5.2.1 : libjpeg 6b (libjpeg-turbo 2.0.91) : libpng 1.6.37 : libtiff 4.4.0 : zlib 1.2.12 : libwebp 1.2.2 : libopenjp2 2.5.0Found AVX2Found AVXFound FMAFound SSE4.1Found libarchive 3.5.1 zlib/1.2.11 liblzma/5.2.4 bz2lib/1.0.6 libzstd/1.4.9Found libcurl/7.75.0 zlib/1.2.12 libssh2/1.10.1_DEV
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