I want to explain this algorithm in detail. Step by step

JOURNAL OF MULTIMEDIA, VOL. 6. NO. 4, AUGUST 2011 Reversible Image Data Hiding Using Quad-tree Segmentation and Histogram Shifting Yih-Chuan Lin Department of Computer Science and Information Engineering, National Formosa University, Yunlin, Taiwan 63201 Email: lyc@nfu.edu.tw Tzung-Shian Li Institute of Electro-Optical and Materials Science, National Formosa University. Yunlin, Taiwan 63201 Email: iamturtle19@yahoo.com.tw Abstract This paper is working towards a high be transformed back to its original form at the extraction capacity histogram-based reversible data hiding algorithm stage. However, in some applications for sensitive images with a relatively lower distortion introduced after [5-7], such as medical images, military remote-sensing embedding the secret message. The proposed algorithm can images, and artworks, it is essential to be able to reverse be thought of as an improved version of the traditional histogram shifting method. To take advantage of simplc the marked media back to its original form after the intensities, the idca bechind the hidden data are retrieved for some legal considerations