fixed sequence point error in ppm code
Merge pull request #14 from andykitchen/sequence-fix

fixed sequence point error in ppm code
Fixing generic type for rgb2lab
generic type
Add Fabio image as alternative to Lena

Fabio is a nice gender-balancing variation on lena, introduced in 2012
See: http://www.claremontmckenna.edu/news/every-picture-tells-a-story/
and first use in http://arxiv.org/abs/1202.6429
along with original file on http://nuit-blanche.blogspot.co.uk/2012/03/let-there-be-only-one-fabio.html

Its cons: gray-scale only
Its pros:
* matches lena's type of features,
* is enough well known thanks to the noise arounds its first use,
* is gender-balancing and a step away from unconscious brogramming :)

Hope this will make it in!
remvoe full lena
remove full lena from cmake
Merge branch 'fabio' of github.com:jucor/image into jucor-fabio

Conflicts:
	CMakeLists.txt
Merge branch 'jucor-fabio'
Add dedicated C vflip and hflip functions

As recommended by @koraykv
Merge pull request #20 from jucor/vflip

Add dedicated C vflip and hflip functions
added an extra input to warp to allow zero clamping when input src sample goes off the image.
Merge pull request #25 from jonathantompson/warp_clamp

warp clamping