Since, when i compressed my image by using wavelet transform upto the 3rd level , now i want to reconstruct the image by using compressive sensing , so would you please suggest me , this is the correct step or not. I am not want to use the idwt for reconstruct the image.
this approach doesn't make sense.
you can use the inverse wavelet transform instead, for reconstruction.
At the receiver, you have to use the inverse wavelet transform up to level 3 to decode (reconstruct) the image.
Sequence of steps of image compression and reconstruction
At Transmitter (Encoding): Input image -> DWT -> Q -> EC -> Compressed Image
At Receiver (Decoding): Compressed Image -> ED -> IQ -> IDWT -> Reconstructed Image
Where
DWT: Discrete Wavelet transform
IDWT: Inverse Discrete Wavelet transform
EC: Entropy coding
ED: Entropy decoding
Q: Quantization
IQ: Inverse Quantization
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