数字图像的网点增大补偿，通过对组成图像的数字矩阵进行处理，从而达到对每个像素灰度值得调整，在后面的印刷输出中减小网点增大。-Digital image dot gain compensation, the image formed by the digital matrix processing, so as to achieve each of the pixel gray worth adjustment, reducing the output of the back of the pri