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178 Commits
Author SHA1 Message Date
James R. Barlow e877d37ac8 --rotate-pages: Only apply rotation if we're reasonable confident 
Take the threshold from tesseract's default value for -psm 1.
 2016-04-14 13:49:44 -07:00
James R. Barlow 8ddd67d1e2 Check encoding of inline images 2016-03-24 15:11:10 -07:00
James R. Barlow 2d3b1ebf6e Simplify DPI calculation with algebraic derivation 
Needs testing
 2016-03-20 12:35:41 -07:00
James R. Barlow 94a3e447cc Add otsu threshold to leptonica 2016-03-12 00:09:20 -08:00
James R. Barlow 322085933b unpaper: fix check for missing and old versions, add test case 2016-03-10 15:37:09 -08:00
James R. Barlow 8c877482bd Fix leptonica initializers 2016-03-02 06:26:25 -08:00
James R. Barlow b17d589e84 Don't set -sOutputICCProfile 
Ghostscript dev advised against. It appears that this is for
creating target for a device that colors in a particular format.
 2016-03-02 06:25:34 -08:00
James R. Barlow 3d0e8c9629 Provide our own sRGB profile instead of Ghostscript's 2016-03-01 01:27:40 -08:00
James R. Barlow 0360f078de get_postscript_icc_path: don't check the same path multiple times 2016-02-29 12:45:58 -08:00
James R. Barlow 6a380ee99c Fix temporary file placed in wrong folder 2016-02-27 00:51:47 -08:00
James R. Barlow 3c90bd96a9 Remove extraneous debug print() messages 2016-02-27 00:50:58 -08:00
James R. Barlow 570bbe9a05 Add comments and remove debugging, improve inline handling 
Squashed commits:
[bfff3c9] pageinfo, have a main()
 2016-02-27 00:18:36 -08:00
James R. Barlow 5cc3adb39a Add support for inline images 2016-02-27 00:18:36 -08:00
James R. Barlow 3957a0606c Compute image pixel density without performing rectangle intersection (+5 squashed commits) 
Squashed commits:
[0e27904] Partially implement DPI calculation with rotation of the image

Fixes test suite
[a64f662] pageinfo: all tests pass
[c5b811a] Fix typos
[cdd2286] Can now find inline images for efficiently
[60dde8d] First cut at implementing intelligent DPI detection based on content stream

Broke many of the test cases
 2016-02-27 00:18:36 -08:00
James R. Barlow dad2198394 Log information about detected page orientations in a summary line 2016-02-26 01:07:59 -08:00
James R. Barlow e40fdc502d Always dump stack trace for unexpected errors 2016-02-26 01:06:59 -08:00
James R. Barlow d446fe5922 Fix "too few characters" reported as error by tesseract -psm 0 2016-02-21 08:53:34 -08:00
James R. Barlow 8246cc0538 Gracefully recover from tesseract's failure to process very large images 
And test cases to check this
 2016-02-20 04:53:23 -08:00
James R. Barlow ecc0ac9b19 Fix error on --tesseract-timeout timing out 2016-02-20 03:13:23 -08:00
James R. Barlow ea4e6bf67d leptonica: serialization tweaks, memory handling 2016-02-20 02:54:53 -08:00
James R. Barlow 46c204f533 Fix leptonica pickling 2016-02-20 02:35:34 -08:00
James R. Barlow 71fbda8bf6 Adjust page orientation parsing to deal with change in Tess 3.04.01 2016-02-20 01:32:56 -08:00
James R. Barlow 9b79b4a7c8 Leptonica: documentation, helper functions 2016-02-20 01:20:06 -08:00
James R. Barlow c04cc853d7 leptonica: remove special PNM handling 
We no longer use PNM as an intermediate format, so there's no need to
handle leptonica's PNM quirks.
 2016-02-19 15:13:14 -08:00
James R. Barlow dd41e70ccc leptonica: nit 2016-02-19 15:11:48 -08:00
James R. Barlow ab0e5fa425 Improve error checking for tesseract -psm 0 (orientation) errors 2016-02-19 03:58:39 -08:00
James R. Barlow f3b0434a87 Improve ability to capture error messages from tesseract on a crash 2016-02-19 03:48:49 -08:00
James R. Barlow 3b98a1a04b Fix KeyError on unexpected tess output 2016-02-17 06:05:27 -08:00
James R. Barlow d4ef3411e0 Suppress --pdf-renderer tesseract warning in Docker image 
Since the corrected font is provided in the Docker image, there's no
reason to show the warning.
 2016-02-17 01:03:20 -08:00
James R. Barlow 60b2eb1455 Fix JPEG DPI: Pillow expects dpi=(x,y) 2016-02-16 07:29:20 -08:00
James R. Barlow ab3c1988c1 Work around Leptonica < 1.72 bug that breaks Travis 2016-02-16 07:03:50 -08:00
James R. Barlow ee5223eea8 Travis again: are invalid correlation measurements a use-after-free? 
Try explicitly casting the value to a float.
 2016-02-16 06:09:48 -08:00
James R. Barlow 71e493a810 Fix case of JPEG missing DPI field 2016-02-16 05:29:32 -08:00
James R. Barlow d70ce61cfd Travis: maybe it's just the missing __init__.py? 2016-02-16 05:09:12 -08:00
James R. Barlow 8cd84afac8 Revert "Try moving leptonica build script, playing with wheels a bit" 
This reverts commit ec2c6c312b.
 2016-02-16 05:04:20 -08:00
James R. Barlow ec2c6c312b Try moving leptonica build script, playing with wheels a bit 2016-02-16 04:05:58 -08:00
James R. Barlow c50e3f1329 Complain about older tesseracts that don't have sharp2.ttf installed 2016-02-15 16:43:41 -08:00
James R. Barlow 7c691c21ab Fix image layer rotation for pages with nonzero crop boxes 2016-02-10 17:48:33 -08:00
James R. Barlow 4ec51729d8 Partial fix for images not anchored to (0, 0) 2016-02-10 17:14:48 -08:00
James R. Barlow 07b41e479a Cleaner access to mediabox 2016-02-09 02:19:05 -08:00
James R. Barlow 6510bcad19 DPI information not transferred automatically from PNG to JPEG 2016-02-09 02:18:54 -08:00
James R. Barlow 1928a64cae Better logging output for autorotation 2016-02-08 23:42:25 -08:00
James R. Barlow 11e575a5a3 leptonica: suppress debug output 2016-02-08 23:41:45 -08:00
James R. Barlow 7fbc0d6460 tesseract: unify logging function 2016-02-08 23:40:36 -08:00
James R. Barlow 1ba8b1aa4b unpaper is lousy at deskewing, so let leptonica do it 2016-02-08 15:26:33 -08:00
James R. Barlow 4ceb59215f Leptonica: classes are better 2016-02-08 15:14:44 -08:00
James R. Barlow 2e6879ee51 Introduce Leptonica class for Pix 2016-02-08 14:52:01 -08:00
James R. Barlow 66fc2e9d7d Add rotate 180 correlation sanity check 2016-02-08 13:10:11 -08:00
James R. Barlow 78c3bf5dba Check autorotate using leptonica correlation 2016-02-08 12:55:50 -08:00
James R. Barlow 2752bda80b Merge branch 'feature/leptdeskew' into feature/logging 
Need leptonica for testing now, I think
# Conflicts:
#	ocrmypdf/tesseract.py
#	requirements.txt
#	setup.py
 2016-02-08 12:34:48 -08:00