Default [Q] (Q) Solution to low resolution albums on Android

As we know, Android creates for a unknown reason, low resolution album arts, and for people who use KitKat music lockscreen, the bad quality is even worse. And there is no fix for that i guess. This may sound dumb, but it isnt possible to somekind of 'reverse engineering' , to know which system file creates that, And edit it to make it better?

Example: lets imagine its like that
....
....blabla
CreateAlbumArtResolution:400x400
...
....

So cant we just edit that? Or its impossible? You guys understand what i'm trying to say?