As to the design of the steganalysis feature, in order to capture the embedding changes more effectively, the proposed steganalysis features all include many feature subsets which are extracted for the detection of stego
image from different aspects.
In order to increase the security of the stego
image the cover image can be encrypted before embedding the medical data.
In the proposed scheme, same concept has been used to compensate the quality of stego
El resultado final de este proceso de sustitucion genera la imagen stego
y una clave que registra las posiciones de los pixeles donde se oculto la informacion ,.
where X and Y are random variables representing the cover image and stego
image, px and qy represent the probability mass functions of x and y, and gs[MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is the pixel value.
Currently, there is not a secret image sharing scheme that can change the threshold after distributing the stego
images and before recovering the secret image.
In order to know what is the effect of some actions done to stego
image, we do some testing on the stego
image by changing the brightness and constrast, and also doing crop.
Superposition: the coefficients of the stego
signal are obtained as the sum of the coefficients of the host signal and the coefficients of the secret message.
defuzzyficator (Defuz) which convert output of NFS in number Y used as stego
way of container of text element image.
m "Moisture Problems in Slabs" Bryce Skeeters, Stego
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Imperceptibility (or fidelity) is referred to the perceptual difference between the stego
and original image and can be tested subjectively.