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Embedded_Video.mp4		Embedded_Video.mp4
Input_video.mp4		Input_video.mp4
README.md		README.md
main.py		main.py

README.md

Video Steganography

Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video. It has existed for a long time, and nowadays, digital steganography is used to hide data inside images. We can hide all kinds of data by using different digital stenographic methods.

Steganography

A digital image is a representation of pixel values, and every pixel value will have numbers containing information regarding the pixel. A digital color image will have red, green, and blue channels and eight bits to represent each channel, so every channel can take a value from 0-255, and this value represents the intensity of the pixel.

(R, G, B)=(0,0,0)

This is the representation of the color black and this represents the color white.

(R, G, B)=(255,255,255)

Take an array of pixels as an example and suppose we want to hide the character A in it. This is how we will do it:

(R, G, B)= (11101010 11101001 11001010),(10111001,11001011,11101000),(11001001 00100100 11101001)

This is a pixel array, and we want to hide A in it. The ASCII value of A is 65. If we convert it to binary, we get 01000001. So if we use LSB transformation, we can change the LSB of all the numbers in our array and get:

(R,G, B)= (11101010 11101001 11001010),(10111000,11001010,11101000),(11001000 00100101 11101001)

Image Steganography

Image steganography can be simply done using the stegano package in python.

First we will import lsb

from stegano import lsb

To hide a text in an image named file.png

secret =  lsb.hide("file.png", "text")

To save the encoded image in a file named e_file.png

secret.save("e_file.png")

To decode the secret from the file e_file.png

lsb.reveal("e_file.png")