time that image compression lasts

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lou ham
lou ham on 29 Oct 2019
Commented: Walter Roberson on 29 Oct 2019
I designed an image compression program in matlab, I used 256x256 grayscale lena, the DCT, the quantification the Run Length Encoding and the huffman coding.
the program takes about 5s to give the bitstream but the reconstruction of the compressed image lasts 25s
is it normal?
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Walter Roberson
Walter Roberson on 29 Oct 2019
It is unusual. Normally compression takes more time than decompression.

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