JPEG reversible data hiding (RDH) refers to covert communication technology to accurately extract secret data while also perfectly recovering the original JPEG image. With the development of cloud ...

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When taking images underwater, we often find they have low contrast and color distortions since light passing through water suffers from absorption, scattering, and attenuation, making it difficult to ...

What did you do? Trying to obtain the histogram of a image of mode "LA". What did you expect to happen? Get the correct histogram. What actually happened? Got the wrong histogram. It seems that the ...