BRISQUE score.

[Ellyuca]

Hi, I have a question about BRISQUE score. I was playing around and doing some test using this metric on several images. I observed that the scores between an original-good-quality image and a bad quality image modified in some way is very small, sometimes the score are the same. For example, using the images from the "imgs" folder I get the following scores:

python test.py --mode brisque --path=imgs/origin.jpeg imgs/origin.jpeg-----brisque score:0.4922910845749762

!python test.py --mode brisque --path=imgs/compression.jpeg imgs/compression.jpeg-----brisque score:0.4922910845354642

which is a 0.000000000039512 difference.

I was expecting a bigger more significant difference. Is there something I am doing wrong? I would really appreciate your feedback on this.

Thank you very much. Have a great day.

[LeiXian1203]

I have the same result，what a pity,just a joke？

[buptlj]

same result :0.4922910845354642

[fanrupin]

I have the same result