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Author SHA1 Message Date
James R. Barlow 16e4d342d2 Bug fix: --force-ocr should still run on pages with no images 
Useful for people who want to reprocess text.

This also requires --oversample because DPI is undefined. To be fixed
in next commit.
 2016-07-27 15:06:49 -07:00
James R. Barlow 8458a51860 Tighten requirements and dependencies 2016-07-27 14:47:59 -07:00
James R. Barlow 636d1903b3 Ghostscript: do raster output with -dSAFER 
-dSAFER does not work when rendering PDF/A, because that needs to load
the ICC file, and -dSAFER prevents access to external files.
 2016-07-27 00:54:40 -07:00
jbarlow83andGitHub 514efa36fc Readme: Add table of contents, brew install tesseract --with-language packs v4.1.4 2016-07-24 11:21:46 -07:00
James R. Barlow bd48f40d3d v4.1.4 release notes v4.1.4rc1 2016-07-17 00:35:06 -07:00
James R. Barlow c02dbc809a Merge commit '68cf9cbd87c188823027f9d1bfe9029017e7281f' into develop 2016-07-17 00:29:48 -07:00
James R. Barlow 410111d6fb Bug fix: Monochrome images with ICC treated as full color images 
Issue #79.
User submitted PDF with ICC profile attached to the monochrome image
in the input file, which is not common but useful for PDFs that want to
define how light the paper is or how dark the black is. The code was
written to assume unusual images are full color unless it can prove
otherwise. Handle this simple case. Other ICC cases should be tested.
 2016-07-17 00:29:32 -07:00
jbarlow83andGitHub 68cf9cbd87 .rst: add code-block markup 2016-07-05 14:03:55 -07:00
jbarlow83andGitHub c9b2540d9d Fix some .rst formatting errors 2016-07-05 13:48:19 -07:00
jbarlow83andGitHub 1bacf35a2c Update license information for encrypted_algo4.pdf 2016-06-24 14:25:15 -07:00
jbarlow83andGitHub 8aef0d9277 Merge pull request #76 from Jmuccigr/patch-2 
Adding explicit reference to help
 2016-06-24 14:21:23 -07:00
John MuccigrossoandGitHub b2fa8645ba Adding explicit reference to help 2016-06-24 13:44:12 -05:00
James R. Barlow c96823a648 v4.1.3 release notes v4.1.3 v4.1.3rc1 2016-06-23 13:47:56 -07:00
James R. Barlow 3807b7d655 Merge branch 'feature/leptfun' into develop 2016-06-23 13:45:35 -07:00
James R. Barlow a45505cf1d Fix order of operations in matrix multiplication 
Issue #73. The order of operations happens to not matter for scaling
but does matter for translation. We only need scaling to find the DPI,
so the error was not noticed. Mainly useful to other uses of this
library.
 2016-06-23 13:36:23 -07:00
James R. Barlow b4a734fc0d Test case for "algorithm 4" test 
Algorithm 4 -> PDF version 1.6
 2016-06-23 13:21:26 -07:00
James R. Barlow bbd02926e1 Add helpful error message for PDFs that use algorithm 4 2016-06-23 13:13:17 -07:00
jbarlow83andGitHub 5022ded276 Update Windows directions 2016-06-16 15:15:46 -07:00
James R. Barlow c7612152ef leptonica: pillow interop 2016-06-06 23:55:23 -07:00
James R. Barlow af91642cd1 lept: fix __getstate/__setstate 2016-06-06 23:55:23 -07:00
James R. Barlow 9c66334c38 Leptonica - ortho rotate, background norm 2016-06-06 23:55:23 -07:00
James R. Barlow 8d79b94b84 cpix -> _pix 2016-06-06 23:55:23 -07:00
James R. Barlow d7f60b96c1 More leptonica functions for page manipulation 2016-06-06 23:55:23 -07:00
James R. Barlow b964999427 Update filename references from sRGB_IEC to sRGB v4.1.2 2016-05-10 21:58:04 -07:00
James R. Barlow 3473345ea6 Replace sRGB_IEC with MIT license compatible sRGB 
New file is from Debian package icc-profiles-free
v4.1.1 		2016-05-10 21:48:32 -07:00
James R. Barlow 349ec5c81f Provide more helpful error message if pypdf can't merge pages 2016-04-28 14:02:12 -07:00
James R. Barlow ff78d7c56c v4.1 release notes v4.1 v4.1rc1 2016-04-28 00:46:16 -07:00
James R. Barlow ff092c8629 Fix race condition between these tests when run in parallel 2016-04-28 00:39:15 -07:00
James R. Barlow fe14cb57c0 Fix ruffus exception output 
I found this issue in ruffus 2.6.3
https://github.com/bunbun/ruffus/issues/65
also discussed here
https://github.com/bunbun/ruffus/pull/67

ruffus 2.6.3 RethrownJobError don't follow the normal conventions and
so its exception causes problems when they cross process boundaries.
This change carefully examines the various forms of ruffus exception
objects that can appear in 2.6.3 and parses them more carefully. It
also removes any direct posting of the exception to the logger because
this triggers another serializing of the exception object, mutating it
further.
 2016-04-28 00:38:50 -07:00
James R. Barlow 507fbc01d5 Refactor _find_page_images 2016-04-27 13:13:43 -07:00
James R. Barlow 325479e5be Fix test failure: inline images with multiple image filters specified 2016-04-27 13:09:41 -07:00
James R. Barlow e926ecb8b2 Fuzzing: check for graphics stack overflow 
Very unlikely to occur
 2016-04-18 13:08:35 -07:00
James R. Barlow d0cb6c0e92 Replace private hypotenuse formula with hypot() 2016-04-18 13:07:53 -07:00
James R. Barlow 5b7c8cf5d3 Remove check for /ImageMask 
/ImageMask means the the image is a stencil mask for a grayscale or
color image. From issue #63 a user has a PDF apparently with only a
stencil mask and no other images. According to PDF spec you're supposed
to use masks to help draw other images rather than draw masks
explicitly, although drawing masks is not forbidden.

In the event that the image mask is higher resolution than the input
 image, the composite image should be drawn at the highest DPI to a
ccurately capture the effect of the mask. It looks like the right to
 do is take masks into account rather than ignore them (a holdover
from earlier, less robust versions), or don't treat it different.
 2016-04-14 14:24:33 -07:00
James R. Barlow 40baab32ac Remove dead code "import stuff in testcase" 2016-04-14 14:22:34 -07:00
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 5a9f77e438 Merge commit '1605408c23fa1b9252c5d3f10f279b43733b0728' into develop 2016-04-14 13:07:10 -07:00
James R. Barlow 8ddd67d1e2 Check encoding of inline images 2016-03-24 15:11:10 -07:00
jbarlow83 1605408c23 README: add libffi-dev 2016-03-22 23:39:02 -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 c74eaab7f5 Update license: sRGB ICC 2016-03-20 12:34:34 -07:00
James R. Barlow c21d231388 Merge commit 'a73afc4e769202b916d35dee481d741cf6bb7224' 2016-03-20 12:33:15 -07:00
jbarlow83 a73afc4e76 Merge pull request #59 from spwhitton/apt-get 
README: Debian and Ubuntu installation option
 2016-03-14 00:19:59 -07:00
Sean Whitton 76c364150d README: Debian and Ubuntu installation option 2016-03-13 23:15:00 -07:00
James R. Barlow 94a3e447cc Add otsu threshold to leptonica 2016-03-12 00:09:20 -08:00
James R. Barlow 12868b461a Travis: install unpaper.deb instead of compiling from source 2016-03-11 21:16:01 -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 3fed94bb79 v4.0.7 v4.0.7 2016-03-02 06:27:01 -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