Abstract:

In order to protect the details of any image, the histogram shifting method is used. The image taken for this purpose mainly involves the medical images. Here an image of size 256x256 is taken as input and then encrypted. When the image is encrypted, the details of the image are hidden. After encryption, the image will not be visible to the other person at the receiving end. Now this encrypted image is sent to the end user, so that the process of decryption is done at that end. This process of decryption involves the recovery of the original image without any loss and when appropriate, medical professionals can use the photos containing data to guide proper therapy by using the resultant output, which should be just like the original version. This paper aims at preserving the details of the image by hiding its details. The results of the histogram shifting method are evaluated in terms of Entropy, PSNR and the elapsed time

Description:

Histogram Shifting, Encryption and Decryption