| 摘要 |
<p>A method for image processing a digital color image uses a single array of threshold values in a halftoning process if a total density value, which is found adding up the color density value for each of the process colors of a pixel, is lower than a predetermined density threshold. However, when the total density value exceeds the density threshold, the individual color density values are split in a basic part and an excess part, the basic parts adding up to the predetermined density threshold. In the halftoning process the basic parts still use the single array of threshold values, but the excess parts use uncorrelated arrays of threshold values that are associated with each individual process color. This provides for a balance between graininess at low color density and registration independent color rendering at high color density.</p> |
