Dear All, We have just past the halfway point for the formal review of Boost.GIL.IO and Boost.GIL.Toolbox. It has been quiet so far and we haven't received any votes. We still have plenty of time and I'd like to strongly encourage the Boost Community to participate in the review actively. Every comment is important to the authors and will be appreciated. Every vote counts. Thanks, Mat On 30/11/10 18:01, Mateusz Loskot wrote:

Dear All,

According to the Boost Formal Review Schedule [1], review of Christian Henning's extensions to the Boost Generic Image Library (Boost.GIL, [2]), it is: * Boost.GIL.IO * Boost.GIL.Toolbox starts on December 1st and lasts until December 10th, 2010.

[1] http://www.boost.org/community/review_schedule.html [2] http://www.boost.org/doc/libs/release/libs/gil/doc/index.html

=========== What is it? ===========

The Boost.GIL.IO extension provides an easy to use interface for reading and writing various image formats. It also includes a framework for adding new formats. The Boost.GIL.IO is indent to replace the current IO extension which is part of Boost for several years now.

Features:

* A unified way to read and write image encoded in BMP, JPEG, PNG, PNM, and TIFF formats. The capabilities to read and write in various formats have improved dramatically.

* Image data can be provided via standard file or string streams

The Boost.GIL.Toolbox provides new color spaces and other small code to ease programming with Boost.GIL.

Features:

* Implementation of color spaces: Gray_Alpha, HSL, HSV, LAB, and XYZ * Utilities to support dynamic image workflows and color conversions. * Collection of metafunctions to determine alignment, similarity and homogeneity at pixel level.

The Boost.GIL as well as the proposed extensions are provided in form of a headers-only library Although, some image formats come with their format dependency, it is corresponding third-party libraries:

JPEG - libjpeg PNG - libpng TIFF - libtiff

=================== Getting the library ===================

The latest version of both extensions can be downloaded as Zip package:

http://gil-contributions.googlecode.com/files/boost_review.zip

or directly from the Subversion repository:

http://code.google.com/p/gil-contributions/source/browse/trunk/gil_2/

and the docs can built as usual with bjam and quickbook tools from within libs/gil/io_new/doc directory

The libs/gil/io_new/test/readme.txt provides a step by step guide to configuring, building and running the unit tests.

The boost_review.zip is about 20MB due to its extensive collection of test images. They are part of the test suite to make sure that different variations of each image format is read and written correctly.

Please, be aware no guarantee can be given that all formats in their all variants are completely supported.

================ Writing a review ================

If you feel the new IO and Toolbox are interesting extensions to the Boost.GIL library, then please submit your review to the developer list (preferably), or to the review manager (mateusz at loskot dot _n_e_t_)

Here are some questions you might want to answer in your review:

- What is your evaluation of the design? - What is your evaluation of the implementation? - What is your evaluation of the documentation? - What is your evaluation of the potential usefulness of the extensions? - Did you try to use the extensions? With what compiler? Did you have any problems? - How much effort did you put into your evaluation? A glance? A quick - reading? In-depth study? - Are you knowledgeable about the problem domain?

And finally, every review should answer this question:

- Do you think the extensions should be accepted as a part of Boost.GIL library?

Be sure to say this explicitly so that your other comments don't obscure your overall opinion.

Mateusz Review Manager for the proposed Boost.GIL.IO and Boost.GIL.Toolbox extensions

-- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org Member of ACCU, http://accu.org