an area of relatively abrupt changes of colors of the image and generating a multibit code representative of the quantized predictor vector of the input vector according to a certain compression ratio application_number US 14646905 A description the source data is organized according to a bayer color filter array cfa or briefly to a bayer pattern and the data sequences to be separately encoded are the pixel values belonging to each one of the three basic colors channels r g b fig1 illustrates the method of dpcm vq compression process according to this invention as depicted in the approach of fig1 the input bayer data are scanned line by line the values p i and p i 1 that are two successive pixels the same color channel of the bayer image are gathered in pairs or couples and for each so defined current input vector p i p i 1 prediction values p i u2032 p i 1 u2032 are generated to calculate the differences or prediction errors e i e i 1 that define what is called the predictor vector of the current vector the dpcm step that precedes the vq step exploits the high spatial correlation among adjacent pixels to perform compression by coding just the new information between adjacent pels in particular the u201c new information u201d is given by the prediction errors generation of such a predictor vector may be established in any appropriate manner in the simplest implementation the predicted values for the successive pairs of values may be assumed to be the current pair of values or two identical values equal to the second value of the current pair of values in consideration of the fact that the second value of the current pair is that of a pixel.