implemented boost matrix instead of our Channel Struct. Need to refactor width and height of the channels while loading ppm file. (8x8 blocks)
Matrices have now the right size for the later used 8x8 blocks. :)
Added fast dct for a single 8x8 block.
fixed problem with subsampling. please check if this works fine!
added direct dct... test failes. Y(y,x) with = 0 values are correct... not the other. mhh
add dct matrix version