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Author SHA1 Message Date
James R. Barlow fbd72efd45 build: typo v13.0.0 2021-12-04 01:41:31 -08:00
James R. Barlow 1115923995 build: address checksum error from choco 2021-12-04 01:26:38 -08:00
James R. Barlow 8478d67b28 Merge branch 'release/v13' of github.com:jbarlow83/OCRmyPDF into release/v13 2021-11-15 16:38:11 -08:00
James R. Barlow c75ff4687a Turning on Ghostscript interpolation changes this test 
Seems acceptable. We don't normally use Ghostscript to downsample PDFs
like is happening in this test.
 2021-11-15 16:36:24 -08:00
mara004andGitHub 312c1e51b5 [ci skip] minor corrections to maintainers.rst (#858) 2021-11-15 15:13:12 -08:00
James R. Barlow cfe2bb25ba Merge commit 'cd49e70154f82f54bf74fc5bb2586fe7e0358971' into release/v13 2021-11-15 00:33:34 -08:00
Tristan PorteriesandGitHub cd49e70154 ghostscript: force interpolation when rendering (#855) 
Specifying option --oversample tends to introduce upsampling in rendering
by rasterizing page to an higher DPI.

This upsampling improves OCR results, but a correct choice of interpolation
method can increase even more the OCR quality.

Ghostscript seems to use a nearest interpolation as default choice for pdf.
This method doesn't average new introduced pixels with original pixels
resulting in an almost similar image but with more pixels.

Providing -dInterpolateControl=-1 force switching interpolation on.

In this commit the above option is passed to all ghostscript rendering
calls.

After testing, rendering a page at same DPI with interpolation
enabled does not introduce significant time overhead.

time (repeat 40 gs -dQUIET -dSAFER -dBATCH -dNOPAUSE -sDEVICE=png16m \
	-dFirstPage=1 -dLastPage=1 -r100.000000x100.000000 \
	-dInterpolateControl=-1 -o /dev/null -dAutoRotatePages=/None -f pzII.pdf)
7,66s user 0,33s system 99% cpu 8,012 total

time (repeat 40 gs -dQUIET -dSAFER -dBATCH -dNOPAUSE -sDEVICE=png16m \
	-dFirstPage=1 -dLastPage=1 -r100.000000x100.000000 \
        -o /dev/null -dAutoRotatePages=/None -f pzII.pdf)
7,42s user 0,39s system 99% cpu 7,808 total

Ghostscript interpolation control reference:
https://www.ghostscript.com/doc/current/Use.htm
 2021-11-15 00:32:58 -08:00
James R. Barlow 7ce1692eef windows: default version to '0' when looking for Ghostscript 
To avoid ValueError: max() arg is an empty sequence

As suggested by @meet1919 in #833.
 2021-11-14 23:00:08 -08:00
James R. Barlow 7959f7628d pyproject: tell black to target py37 2021-11-14 15:49:01 -08:00
James R. Barlow 4634b20de5 Raise max-image-mpixels again 
PDFs are quite likely to have a lot of pixels, e.g. large high resolution scans.
250 MP is a page of A0 sized paper scanned at 400 DPI,
should be enough in most cases.
 2021-11-14 15:47:39 -08:00
James R. Barlow 3810e576ff optimize: fix mypy lint 2021-11-13 14:48:00 -08:00
James R. Barlow 01c7895044 pipeline: tidy 2021-11-13 14:47:49 -08:00
James R. Barlow fdc6aa03fb docs: new maintainer notes 2021-11-13 14:29:30 -08:00
James R. Barlow 25cc17ee03 v13 release notes (2) v13.0.0rc1 2021-11-13 02:02:04 -08:00
James R. Barlow e8098a1475 Dockerfile: remove requirements/ 2021-11-13 01:57:17 -08:00
James R. Barlow 6b773883dc build: use latest pip and wheel in all cases 2021-11-13 01:57:03 -08:00
James R. Barlow 4ed9622335 v13 release notes 2021-11-13 01:37:38 -08:00
James R. Barlow acc9d58c39 Skip no language test for Tess 5 2021-11-13 01:37:27 -08:00
James R. Barlow 659e738f92 Remove some 'liblept' references we no longer need 2021-11-13 01:22:09 -08:00
James R. Barlow 7b3d7ca92a ghostscript: choco doesn't put Ghostscript on PATH anymore 
It seems that chocolately doesn't put gswin[32,64]c on PATH anymore,
so compensate.
 2021-11-13 01:18:12 -08:00
James R. Barlow e3126d2806 Adjust test to support Tesseract 5 working harder to find its files 2021-11-13 01:16:35 -08:00
James R. Barlow 45020a7fcd build: tweak CI 2021-11-13 00:56:49 -08:00
James R. Barlow f51164aff8 Upgrade test version of pymupdf 2021-11-13 00:53:41 -08:00
James R. Barlow 6f58a14351 pdfa: remove deprecated pkg_resources based access and tests 2021-11-13 00:52:03 -08:00
James R. Barlow 7ba04267b1 Remove shims to support for old versions of pikepdf < 4 2021-11-13 00:43:20 -08:00
James R. Barlow 9749564313 Remove requirements/*.txt - use pip install ocrmypdf[etc] instead 2021-11-13 00:31:42 -08:00
James R. Barlow 698e8791d7 Remove Python 3.6 specific unicode environment checks 2021-11-13 00:28:52 -08:00
James R. Barlow 380b981763 Remove most Python 3.6 special casing 2021-11-13 00:27:48 -08:00
James R. Barlow 5abfb14c2a Remove leptonica and cffi 2021-11-13 00:06:35 -08:00
James R. Barlow 036afc4d88 Update cache, related to previous apparently 2021-11-12 23:57:50 -08:00
James R. Barlow 59642a98b2 Disable --remove-background so we can remove leptonica 2021-11-12 23:56:52 -08:00
James R. Barlow f8c6be2e26 test_rotation: replace leptonica test with Pillow channel ops 
New function is likely not as robust but seems capable of inexact image comparison.
 2021-11-12 23:49:38 -08:00
James R. Barlow 42bf5476dd optimize: replace leptonica compdata with direct insert of JPEG 
Confirmed that img2pdf just inserts JPEG verbatim. Never had to go through
the trouble we did.
 2021-11-12 23:20:49 -08:00
James R. Barlow 30440104ba Remove --threshold argument 
Tesseract is now included better thresholding (binarization) in v5. Users that have
thresholding issues should try that first. If we find further problems
this can be brought back as a plugin.
 2021-11-12 20:09:55 -08:00
James R. Barlow b159e02110 Convert deskew to use degrees, since all our other angles are in degrees 2021-11-12 16:40:51 -08:00
James R. Barlow a55ab05d16 Replace leptonica deskew with tesseract find skew and pillow rotate 
Also rebuild the cache.
 2021-11-12 16:35:08 -08:00
James R. Barlow 25d046ae95 Modernize OrientationConfidence definition 2021-11-10 00:55:23 -08:00
James R. Barlow 01b0f76e36 Remove duplicate definition of OrientationConfidence 2021-11-10 00:55:07 -08:00
James R. Barlow d74d315e8b docs: update some old OS versions 2021-11-10 00:30:48 -08:00
James R. Barlow 8be9a68c5e v12.7.2 release notes v12.7.2 2021-11-04 00:20:25 -07:00
James R. Barlow 6c34d59836 tesseract: yet another version variant 2021-11-04 00:17:18 -07:00
James R. Barlow 386453d178 pdfa: replace read_binary() with files() 2021-10-31 02:01:11 -07:00
James R. Barlow 615a7561b5 tesseract: tidy some uses of str paths instead of Path 2021-10-31 02:01:05 -07:00
James R. Barlow c4c64c3ea0 pre-commit updates 2021-10-31 01:31:57 -07:00
James R. Barlow 21279f5784 Fix leaked file handle for output_type none 2021-10-28 02:50:17 -07:00
James R. Barlow a63a21a7fc helpers: remove shim for unsupported old version of pikepdf 2021-10-28 02:46:34 -07:00
James R. Barlow 1c4d5d79f7 Improve some error messages 2021-10-28 01:16:22 -07:00
James R. Barlow 644581ed3c v12.7.1 release notes v12.7.1 2021-10-27 01:20:06 -07:00
James R. Barlow 77f7621bbc batch.py: tidy 2021-10-15 15:03:40 -07:00
James R. Barlow 42713b77d7 v12.7.0 release notes v12.7.0 2021-10-12 13:39:49 -07:00