How to get rid of pixelation in reference plane?

[Caldwell]

I'm setting up my refernce planes with some pics and they are showing up very pixelated and not very clear at all. How do I get rid of that so the picture comes across clear? It isn't the self illumuination I already have that on and the pic/plane have been uv mapped and bitmap fitted. Any suggetions?

 

[Aurelius]

Go to customize > preferences > viewports > configure drivers, and make sure that you have set your texture sizes to the highest one and check the 'Match Bitmap size as closely as possible' box.