Method for rendering gray scale images with variable dot sizes
Color halftone image processing apparatus producing various screen angles and having an adaptive color image data conversion look-up table and a small-capacity masking memory
Method of improving dot-on-dot graphics area-fill using an ink-jet device
Method of generating overhead transparency projecting using an ink-jet device
System for producing dithered images from continuous-tone image data
Interlace printing process
Method for enhancing the uniformity and consistency of dot formation produced by color ink jet printing
Method and system for reproducing monochromatic and color images using ordered dither and error diffusion
Raster imaging device speed-resolution product multiplying method and resulting pixel image data structure
Image processing apparatus with correction of diffusion errors of overlapping dots
ApplicationNo. 320534 filed on 10/11/1994
US Classes:358/1.9, Attribute control358/3.09, Print element property varied to effect halftone pattern358/3.12Size of print element
ExaminersPrimary: Bost, Dwayne D.
Assistant: Legree, Tracy M.
Attorney, Agent or Firm
International ClassesG06K 015/00
AbstractAn image preprocessing method and apparatus processes image data line-by-line using an error diffusion or dithering process to generate a halftoned image in which the radius of a dot representing a pixel is /dpiࣘrࣘÝa;2/dpi The method and apparatus selectively performs the halftone process on every other pixel to reduce in consumption and computation time while maintaining a high resolution.
Field of SearchVariable thresholding technique