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Commit Graph
38 Commits
Author SHA1 Message Date
James R. Barlow ea36aedb5f Overhaul version checkers to prefer Version to str 2023-09-25 00:59:44 -07:00
James R. Barlow 7018e2b247 Refactor ghostscript error message deduplicating 2023-09-24 20:22:04 -07:00
James R. Barlow 3e1b3ec98d Merge branch 'feature/fix-raster-dpi-too-high' into v15 2023-09-21 00:05:56 -07:00
James R. Barlow 6c78076bea Drop support for gswin32c / 32-bit Ghostscript for Windows 2023-09-21 00:05:39 -07:00
James R. Barlow e3c813fc67 Added support for changing color conversion strategy 2023-09-20 01:08:15 -07:00
James R. Barlow 05ecb6ca46 Resolve Windows errors with -dPDFSTOPONERROR 2023-06-02 02:48:38 -07:00
James R. Barlow e8ed510543 Add stop on soft render errors and option to override 2023-06-01 23:49:34 -07:00
James R. Barlow 9b8d14d16e Accept most of ruff's delinting 2023-04-14 00:45:34 -07:00
James R. Barlow 46d0978a09 Update version scripts to support Ghostscript 10.0 2022-10-03 21:59:31 -07:00
James R. Barlow 6dbaebdc0c Merge branch 'master' into feature/drop-3.7 2022-09-15 23:00:27 -07:00
James R. Barlow 2c99c89e45 ghostscript: document why we treat gs 9.56.0 differently 2022-09-15 22:51:04 -07:00
James R. Barlow 67773da309 Drop support for Ghostscript <9.50 2022-08-02 15:01:10 -07:00
James R. Barlow 80ed2117cc Change to SPDX license tracking 2022-07-28 01:10:07 -07:00
James R. Barlow dc6f1a266a Modernize type annotations 2022-07-23 00:39:24 -07:00
James R. Barlow b17fb61389 Configure pylint in pyproject and delint 2022-06-12 00:30:44 -07:00
James R. Barlow a0ac448d52 Tidy some old-school %s strings 2022-06-11 00:15:19 -07:00
James R. Barlow 33bfba8449 ghostscript: match actual reported version 2022-04-03 23:35:30 -07:00
James Barlow 84b9d4d021 Speculation: Ghostscript 9.56 new PDF interpreter breaks things 2022-04-03 21:14:19 -07:00
James Barlow 776ada6713 Upgrade pre-commit and associated tools; various lints 2022-04-03 20:53:01 -07:00
James Barlow f29fe7f23e Fix Pillow deprecation warnings 2022-04-03 13:30:50 -07:00
James R. Barlow 3dfde479e2 The world is not ready for := 2022-01-26 00:16:51 -08:00
James R. Barlow 3b406112d0 ghostscript: improve test coverage of error cases 2022-01-25 23:45:47 -08:00
James R. Barlow fcc4c2d371 ghostscript: improve error message if image cannot be opened 2022-01-25 23:12:51 -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 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 bccf2f423f Stricter parameter checking for many public functions 2021-01-31 19:27:25 -08:00
James R. Barlow 327df5cbbc Use ColorConversionStrategy "LeaveColorUnchanged" 
Faster, still produces PDF/A
 2021-01-26 15:44:41 -08:00
James R. Barlow 6f4b38b103 ghostscript: tidy comments 2021-01-08 00:41:03 -08:00
James R. Barlow 0ff0d2f8d1 Remove PDF/A overprint debug message 
Since we currently log all of a process's output at debug it's
redundant to log this separate message.
 2020-12-27 16:19:05 -08:00
James R. Barlow ce0e0ecd4d Decouple tqdm from progressbar setup 2020-12-04 13:20:28 -08:00
James R. Barlow 7e1223c12c ghostscript: add output tracing 2020-11-29 14:53:35 -08:00
James R. Barlow 1f598da3c1 ghostscript: better docs and comments 2020-11-18 11:34:17 -08:00
James R. Barlow b913e5dfef ghostscript: don't repeat log in debug 
Subprocess already does this for us.
 2020-11-03 01:45:06 -08:00
James R. Barlow b5ccbfdf25 Fix hookspec of rasterize_pdf_page to remove default parameters 2020-10-24 02:35:18 -07:00
James R. Barlow aa0ec40102 Change license of all GPLv3 files to MPL-2.0 
https://github.com/jbarlow83/OCRmyPDF/issues/600
 2020-08-05 00:44:42 -07:00
James R. Barlow 86875997b8 Fix more mypy errors 2020-06-29 02:17:14 -07:00
James R. Barlow 0f942fb714 Rename ocrmypdf.exec -> ocrmypdf._exec 2020-06-09 14:59:09 -07:00