VERFAHREN ZUR DIGITALEN BILDVERARBEITUNG MITTELS GEORDNETEM DITHERING

摘要

A dither matrix is applied to a high-resolution image to compare the value of each of the pixels that compose it with a threshold value of the matrix and to obtain an output value of the matrix (Dither matrix value) from each comparison. To each pixel value (in_value_r) of the image there is applied the algorithm represented by the schematic layout of Figure 7 to obtain the pixel values (Out_r) of a low-resolution image. C1-C5 and n1-n10 are parameters that may be selected by means of predetermined criteria based on comparisons of the low-resolution image, obtained by means of the operations described above, with an equivalent low-resolution image obtained by means of a sample method. <IMAGE>