BPCS STEGANOGRAPHY PDF

A typical vessel is a color image having Red, Green, and Blue color components in a multi-bit data structure. The general scheme of steganography is shown in the other page where we will also refer to a file camouflage technique in brief. Eason in It can embed confidential information in vessel data which is typically a true color image bit BMP format and sometimes in an 8-bit indexed color image. Embedding actually, replacing is made on the bit-planes of the image. The most important feature of this steganography is that the embedding capacity is very large.

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BPCS is a method to embed a message in an image by replacing all "complex" blocks of pixels in the image with portions of our message. It turns out that portions of the image with high complexity can be entirely removed or in this case, replaced with our message without changing the appearance of the image at all.

Because most blocks of pixels are complex i. Below, the x image on the right contains the text of an entire novel, while still looking virtually identical to the vessel image on the left. It can be any file type, including another image. You could upload a profile photo to a website that contains a secret image.

Or you could embed an image of a turtle inside an image of a turtle inside an image This is an implementation of the method discussed in: Kawaguchi, Eiji, and Richard O. International Society for Optics and Photonics, Customization The goal of steganography is to hide things in plain sight.

However, aside from varying the alpha parameter, one way to customize the BPCS procedure is by adding custom encryption and decryption to the message before and after using BPCS.

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Diptee D. Lad, Prof. Sindhu M. We are the use of cryptographic and spreading sensitive information with outsiders. The method for steganographic techniques for hiding the data.

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BPCS-Steganography

Fig 1. Bit-Planes 2. Nature of the human vision system and information embedding Each bit-plane can be segmented into "shape-informative" and "noise-looking" regions [2][3]. A shape-informative region consists of simple patterns, while a noise-looking region consists of complex patterns [3]. In Fig. PR4 is mixed with both shape-informative and noise-looking regions.

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Steganography has been widely used for centuries. Here are some examples: [6] Hidden messages on paper written in secret inks. Hidden messages distributed, according to a certain rule or key, as smaller parts e. This particular form of steganography is called a null cipher. Messages written in Morse code on yarn and then knitted into a piece of clothing worn by a courier. Messages written on envelopes in the area covered by postage stamps. In the early days of the printing press, it was common to mix different typefaces on a printed page because the printer did not have enough copies of some letters in one typeface.

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BPCS-Steganography – Principle and Applications

BPCS is a method to embed a message in an image by replacing all "complex" blocks of pixels in the image with portions of our message. It turns out that portions of the image with high complexity can be entirely removed or in this case, replaced with our message without changing the appearance of the image at all. Because most blocks of pixels are complex i. Below, the x image on the right contains the text of an entire novel, while still looking virtually identical to the vessel image on the left. It can be any file type, including another image.

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