Method for processing an image
View Patent ↗A method for processing image data includes the step of dithering a contone layer of the image data. A black bi-level layer of the image data is composited over the contone layer. An infrared tag is rendered to an infrared layer of the image data.
1. A method for processing image data, the method comprising the steps of:
dithering a contone layer of the image data;
compositing a black bi-level layer of the image data over the contone layer; and
rendering an infrared tag to an infrared layer of the image data.
2. A method as claimed in claim 1 , which includes the step of generating print data representing a dithered, composited and rendered image.
3. A method as claimed in claim 1 , wherein, prior to the step of dithering, the method includes the step of expanding compressed image data suitable for dithering.
4. A method as claimed in claim 3 , wherein, prior to the step of expanding the compressed image data, the method includes the step of storing the compressed image data.
5. A method as claimed in claim 4 , wherein, prior to the step of storing, the method includes the step of compressing a page image data to form the compressed image data.
6. A method as claimed in claim 5 , wherein, prior to the step of compressing, the method includes the step of rasterizing input data to form the page image data.
7. A method as claimed in claim 6 wherein, prior to the step of rasterizing, the method includes the step of inputting the input data for rasterizing.