created the ben day dots in 1879, in order to cut costs of color printing. The Ben Day process is a printing and photoengraving technique. These halftone images will have a color halftone effect. Halftoning is used for printing black and white pictures and also for printing color pictures. Halftone can also be used to refer specifically to the halftone image that is produced by the halftone process. Halftone is the reprographic technique that simulates continuous-tone imagery using dots, varying either in size or in spacing, thus generating a gradient-like effect called halftone gradient.
