Steganography Project In Java With Source Code

So, each pixel is a sample of an original image. Pixel concept and color modelsĪs already mentioned, pixels are the smallest individual element of an image. You can read more about digital images, raster graphics, and bitmaps at the Wikipedia website. When using the “ digital image” term here, we are referencing to the “ raster graphics”, which are basically a dot matrix data structure, representing a grid of pixels, which in turn can be stored in image files with varying formats.

So we can think of an image as a matrix (or a two-dimensional array) of pixels which contains a fixed number of rows and columns. Pixels are the smallest individual element of an image, holding values that represent the brightness of a given color at any specific point. We can describe a digital image as a finite set of digital values, called pixels. Ok, now that we know the basics of steganography, let’s learn some simple image processing concepts.īefore understanding how can we hide an image inside another, we need to understand what a digital image is. On the other hand, the hidden message is easier to extract. In other words, steganography is more discreet than cryptography when we want to send a secret information. Plainly visible encrypted messages, no matter how unbreakable they are, arouse interest and may in themselves be incriminating in countries in which encryption is illegal. The advantage of steganography over cryptography alone is that the intended secret message does not attract attention to itself as an object of scrutiny. What is the advantage of steganography over cryptography? Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video. To provide a functional example, it was implemented a Python class to perform the procedures mentioned in the end of this story.įirst of all, let’s understand what is steganography, digital images, pixels, and color models. In this story, we will learn some image processing concepts and how to hide an image inside another image file.

Steganography Project In Java With Source Code