Delayed decision dot placement for plane-dependent CMYK error diffusion

A computer-usable medium having computer-readable code stored thereon for causing a system used in printing to perform a printing method comprising:

• determining locations in a printed image for a plurality of first color dots and locations in said printed image for a plurality of second color dots;
• and
• determining locations in said printed image for a plurality of third color dots, wherein said locations for said third color dots are dependent on said locations of said first color dots and also dependent on said locations of said second color dots, wherein a dot of said third color and a dot of said first color are both printable at a particular location provided there is at least 100 percent fill at said particular location, provided a first modified intensity value of said dot of said first color is greater than a second modified intensity value of said dot of said third color, wherein said first and second modified intensity values comprise respective first and second intensity values that have been modified using error diffusion, provided the sum of said first and second modified intensity values is greater than a first threshold and provided the difference between said first and second modified intensity values is less than a second threshold.