| 摘要 |
<p>A computerized system is provided for simulating the absorption of ink into a sheet. A sheet of paper is split into any number of portions, and the portion closest to the print surface is scanned into a computer to generate an intensity picture of the micro density differences at the sheet surface. The computer program assigns a 'sheet intensity value' for each pixel formed on the scanned image. Next, a pre-formed printed screen image is generated into the computer. The computer stores a 'print intensity value' for each pixel in the pre-formed pattern. The pre-formed printed screen image is then laid over the scanned image of the sheet surface so that each pixel in the scanned image has a corresponding pixel in the print pattern. The computer accesses both the sheet intensity value for a pixel on the sheet, and the print intensity value of a corresponding pixel on the pre-formed printed screen image. It subtracts the sheet intensity value from the print intensity value, and assigns a new value, referred to as the 'final intensity value'. The final intensity value for a pixel provides an indication of how ink will appear if it is applied to that pixel area of the sheet. Using the final intensity values for each pixel in the sheet, the computer is able to generate a representation of how the sheet would appear if the pre-printed pattern were applied to the sheet with ink.</p> |
