u03b3 blocks of intra mb 250 are generated from the dc coefficients of u03b3 blocks in a prior intra mb similarly the reconstructed dc coefficient of cb 256 is generated from a prior cb block and the reconstructed dc coefficient of cr 257 is generated from a prior cr block for one embodiment the reconstructed dc coefficients of a first intra mb are stored in accumulator 211 subsequently using the reconstructed dc coefficients stored in accumulator 211 vld 220 performs an arithmetic computation on the dc coefficient of the next intra mb to generate the reconstructed dc coefficients of the next intra mb the arithmetic operation performed by vld 220 and the use of accumulator 211 is further described below in conjunction with fig3 for another embodiment the dc coefficients of intra mb 250 are inverse quantized dc coefficients in particular vld 220 performs an inverse quantization on the reconstructed dc coefficients thus generating inverse quantized dc coefficients in intra mb 250 to perform the inverse quantization vld 220 multiplies a reconstructed dc coefficient by an intra_dc_multiplier value for one embodiment the intra_dc_multiplier value has a value of 8 4 2 or 1 based on an intra 13 dc 13 precision value specified in a header transmitted in conjunction with the picture subsequently.