What kind of anti aliasing was used?

Hi Cool guys! I want your help TAT
I can’t read the first picture.
but I can read the text after something has been done. I’m not sure about this.
maybe anti-aliasing and blur?

No Effect

Something has been done.

thank you for read my post! Good Day!

// More information


The first picture is enlarged.


The second picture is enlarged.

Thank you!