why extracting the secret message from the quantized DCT coefficient of the setgo image gives different message?
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when embedding DCT steganography this is the process
I did DCT on image value to switch to the transform domain
I did the quantization of the DCT coefficients
then I tried to hide in the LSB of each quantized DCT coefficients (that are not the DC or Zero or 1)
dequantization
inverse DCT
then same the stego image
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for extracting (here I have a problem )
1) I did the dct for the stego image value
2) quantization
3) then I tried to extract the LSB of these coefficients
however, I got a very different message
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would you please inform me is this process that I am using is wrong or correct and why it is not working for me
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