An Improved Method for Combine (LSB and MSB) Based on Color Image RGB

Abstract

Image steganography is the art of hiding data into an image by using the secret key. This paper presents two techniques that combine the most significant bit (MSB) as well as the least significant bit (LSB) based on a color image (24bit for RGB). The presented study proposes a novel method to combine (LSB and MSB) bits based on check MSB values and replace bits from LSB with a secret message. The result of this proposed method that made not affect quality stego -image based on the resulting histogram that shows a match between the cover image and stego- image and more secure because not hidden in all image. The factors were used Mean Square Error (MSE), Compute Payload, in addition to Peak Signal to Noise Ratio (PSNR). The PSNR’s rate is high and MSE is less. The result of this paper when applying on the different image gives high PSNR of 87.141 and less MSE of 0.00012 when inserting message 80 bits and reduction value PSNR of 72.023 and MSE of 0.0040 when inserting message 1200 bits and measure entropy is the same value for cover image and stego –image then this method is more security for the attacker.

Randomized Information Hiding in RGB Images Using Genetic Algorithm and Huffman Coding

“…Sari et al [23] proposed an AES algorithm to encrypt the data and DWT to hide it and noticed that the DWT method suffers from a lack of capacity so to overcome this problem they used Huffman to reduce the size of the data and thus increase the capacity, PSNR=46db. This method [24] combines techniques MSB with LSB based on color images. The researchers proposed a new method that used MSB as a check and then replace bits of LSB with secrets message, PSNR=72.023.…”

“…Methods Metrics Year [19] Adaptive LSB PSNR, MSE 2020 [20] DNA with hyperchaotic system PSNR, MSE, and CORRELATION 2020 [21] RLE, LSB, Random Function PSNR 2020 [22] Modified LSB Method with shape Modification PSNR 2021 [23] AES, DWT and Huffman PSNR,MSE and Histogram 2019 [24] MSB and LSB PSNR 2021 [25] PRNG and XOR PSNR 2019 Prposed System Genetic algorithm, Huffman coding and index of pixels as indicator…”

Steganography Encryption Secret Message in Video Raster Using DNA and Chaotic Map

“…If the value coefficient is close to 0, then the two variables are not related. The value of coefficient r can be computed according to Equation (7) [23,24].…”

“…The histogram normalized, which will increase the area of the pixels and give the best variation of the image. Equation ( 8) defines the balance of a new pixel value when used in this manner [19,24,25].…”

“…Let e1, e2,..., em be m possibility items for :probability P (e1), P (e2), ..., P (em). The entropy is given as; 𝐻(𝑒) = − ∑ 𝑚−1 𝑖=0 𝑃(𝑒 𝑖 )𝑙𝑜𝑔 2 𝑃(𝑒 𝑖 ) …………..(9) The neutralization outputs a rating of the area of lower numerical bits in order to encipher a string of bits on the basis of frequency of character [8,24,25].…”