RAISR: Rapid and Accurate Image Super Resolution

This code is aim to achieve the single image super-resolution algorithm established by this particle: RAISR: Rapid and Accurate Image Super Resolution pdf.

It's just a test now and could only deal with grey-scale image.

I used it to deal with the CT image, the beat part is that it trainning and running really fast( the whole filter may not be necessary for special questions).

I can't put the test image here for secrety reason, and i'll put on a normal edition letter.

I will complete the CT-Blending part in the future.