some links about HDR

http://unconditional.co.nz/sunny-nelson/2009/08/29/hdr-in-real-estate-photography-part-ii/
http://wiki.panotools.org/HDR_Software_overview
https://www.price.com.hk/news.php?sec_id=12&id=9990

HDR tutorial - http://500px.com/blog/750/tutorial-learn-hdr-photography http://wlcreative.com/blog/hdr-inroduction/ http://wlcreative.com/blog/hdr-partii/ http://wlcreative.com/blog/hdr-partiii/ http://wlcreative.com/blog/hdr%E6%8B%8D%E6%94%9D%E5%92%8C%E5%BE%8C%E8%A3%BD%E6%95%99%E5%AD%B8part-iv-%E5%9F%B7%E8%B5%B0%E9%AC%BC%E5%BD%B1/

Tutorial about color
http://www.tedgorecreative.com/blog/2016/2/8/imc0w2lc0ie6b1jtixfht4jgqyjvnu
