English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper, two techniques of image steganography are hybrid in order to achieve secure transmission between sender and receiver. First is 2-bit LSB Technique and another is Discrete Wavelet Transform (DWT) Technique. In this proposed method the secret image is divided into two parts: upper half (UH) and lower half (LH).The LSB algorithm is implemented in spatial domain in which upper half of secret image is embedded into the least significant bits of cover image to derive the UH stego-image. Whereas DWT algorithm is implemented in transform domain in which the lower half secret image is embedded into the wavelet coefficient of the cover image to derive another LH stego image. Both the stego images are decomposed with wavelet transform to get final stego image. Finally an Inverse DWT (IDWT) is performed to get the stego image reconstruction. This is a unique attempt to simplify the embedding procedure and to reduce the effort of concealing the secret image in the cover image and offer better results. Finally, we have evaluated the performance of the proposed technique using Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR) performance measure. The experimental result are compared with other method and found to be satisfactory.

Digital Image Steganography based on Combining Approach of LSB and DWT for Image Security