| 摘要 |
<p>Data processing methods provide a work flow for producing custom screen printed products based on digital images. Disclosed techniques include a work flow for receiving user supplied images and transforming the images into color separation data and related metadata that can drive screen printing, including previewing the appearance of the products as they will appear when screen printed, for user approval; finding key color components using a filtering and grouping approach; image resolution limiting; structured error diffusion halftoning with an improved random number generator for use in adding blue noise; error diffusion dot spread correction; and others. Fig. 2A 25_ Payment p02Ute System 2MA User- C A image file 214 Destination Image 208 Server computer 212 Key Color Component Finding Logic 2_1ilmage -21Grouping Filter Logic 22D Resolution Limiting Logic 222Structured Error Diffusion Halftoning Logic Presentation 230 Error Diffusion +Logic Dot Spread Correction Logic 22 Substrate Selection and Display Logic 22,d Screen Print Data Generating Logic 232 Screen Print Data 2SQ Screen Printing Systemi Sheet 2 of 13</p> |
