Image Steganography android studio project

Steganography is the process of hiding a secret message within a larger one in such a way that someone cannot know the presence or contents of the hidden message. Although related, Steganography is not to be confused with Encryption, which is the process of making a message unintelligible—Steganography attempts to hide the existence of communication. The main advantage of steganography algorithm is because of its simple security mechanism. Because the steganographic message is integrated invisibly and covered inside other harmless sources, it is very difficult to detect the message without knowing the existence and the appropriate encoding scheme .
Proposed Algorithm
The algorithm is more dedicated towards the algorithm proposed by Rosziati Ibrahim and Teoh Suk Kuan in their
Research Paper
published on February 25, 2011.
Encoding Algorithm
Firstly, the secret message that is extracted is
compressed
as the contents in the compressed string will significantly hard to detect and read, furthermore it reduces the size of string.
Secondly, the compressed string is
encrypted
with the secret key.
Finally,
encoding
the encrypted message in the image. It uses
LSB steganographic embedding
to encode data into an image. Once the message is encoded the process stops.
LSB(Least Significant Bit) Embedding
The LSB is the lowest significant bit in the byte value of the image pixel. The LSB based image steganography embeds the secret in the least significant bits of pixel values of the cover image (CVR). The concept of LSB Embedding is simple. It exploits the fact that the level of precision in many image formats is far greater than that perceivable by average human vision. Therefore, an altered image with slight variations in its colors will be indistinguishable from the original by a human being, just by looking at it. In conventional LSB technique, which requires eight bytes of pixels to store 1byte of secret data but in proposed LSB technique, just four bytes of pixels are sufficient to hold one message byte. Rest of the bits in the pixels remains the same. Following shows the bit level interpretation of the algorithm :
Decoding Algorithm
Firstly,
decode
the message from the encrypted image using LSB decoding.
Secondly,
decrypt
the compressed message from the decoded message using the secret key.
Finally,
decompress
the message to get the original compressed message.
Consider the following encoding, it is totally undetectable by human eyes.
Download here
4 Comments
mrsinha
May 6, 2020 at 12:39 am
image is not decode at the reciver end
Abu3@bda
August 18, 2021 at 12:50 am
do you have source code for C# programming language
gajen pradhan
September 24, 2021 at 7:38 pm
contact support section
https://Ajvika Labs.com/contact-us/
hemanth suresh
July 6, 2022 at 6:37 pm
decoding not working.