Fwd: leptonica 1.72 released

[zdenko podobny]

FYI,

Zdenko

---------- Forwarded message ----------
From: Dan Bloomberg <dan.bl...@gmail.com>
Date: Mon, Apr 27, 2015 at 3:21 AM
Subject: leptonica 1.72 released
To: Dan Bloomberg <dan.bl...@gmail.com>

Greetings,

You are receiving this because you have, at some time in the past,

indicated sufficient interest in the Leptonica library to send

an inquiry, or a patch, or suggestions or code for improvement.

This is the release notification for version 1.72.  If you do not

wish to receive these notifications, just reply and tell me.

The web site is:

      http://www.leptonica.org

The most recent releases, including the current one, can be found there.

The README is here:

      http://www.leptonica.org/source/README.html

Older releases, with even-numbered ones starting at 1.42, and all

between 1.61 and 1.69, are archived at

      http://code.google.com/p/leptonica

However, this site will be turned down in a few months.

The version notes list the major changes and additions in each release:

      http://www.leptonica.org/source/version-notes.html

High points of 1.72 (26 April 15)

===============================

* This version will be released as a Debian package (thanks, Jeff Breidenbach)

* All temp files can now go too subdirectories of the temp directory, if

  desired.  This ("no spam in the temp dir") was strongly requested

  for the windows runtime.

* Yet more improvement in handling all types of png with alpha.

* Cleaner implementation of tiff memory operations.

* Utility for automatically (1) serializing any leptonica data structure

  as a compilable string and (2) generating deserialization code.

* Antialiased painting through a mask.

High points of 1.71 (28 Jun 14)

===============================

* This version was released as a Debian package.  It supports

  tesseract 3.0.4, which will allow pdf output with embedded text

  (thanks to Jeff Breidenbach)

* jp2k read/write with openjpeg; jp2k header parsing

* pdf wrapping of jp2k is supported, along with wrapping of most png

   files without transcoding (also thanks to Jeff Breidenbach)

* Better support for alpha, including colormaps with alpha

* Less spamming of /tmp files and their subdirectories when testing

* Extensive testing of the library and the regression test programs

  on windows and cygwin (thanks to Tom Powers and David Bryan)

Building

========

As always, you can build either with automake or with the static

makefiles that are provided.  To use the static makefiles, first

run "make-for-local" in the root directory.  See the README.

Testing

=======

The automake approach lets you run 67 regression tests with 'make check'.

With the static makefiles, you can do likewise by first generating the

golden files ('alltests_reg generate') and then running against them

('alltests_reg compare').

Support for I/O

===============

Leptonica supports 9 file formats for read/write (png, jpeg, tiff, png,

bmp, webp, gif, jp2k, spix) and two formats write-only (PostScript and pdf).

The Unofficial Leptonica Documentation

======================================

Tom Powers has transformed the amateurish leptonica.org web

pages into something that is actually fun to navigate.  You can get

there from leptonica.org.

Programs you can install (automake) with 'make install'

============================================

convertfilestopdf

convertfilestops

convertformat

convertsegfilestopdf

convertsegfilestops

converttopdf

converttops

fileinfo

printimage

printsplitimage

printtiff

splitimage2pdf

xtractprotos

How to get an overview

=======================

Leptonica has over 2400 functions.  To get a high level overview and

figure out where things are in the library, a good place to start is:

     http://www.leptonica.org/highlevel.html

As always, I appreciate the help that many of you have given --

especially Tom Powers, Dave Bryan and James LeCuirot.

I continue to harbor the questionable hope that with your help we will

remove existing bugs faster than I am able to add new ones.

  -- Dan