Stain reduction and slow response artifacts in the diffusion of vector error.

摘要

Invention Patent: B "STAIN REDUCTION AND SLOW RESPONSE ARTIFACTS IN VECTOR ERROR DIFFUSION" D. It is a method for color image processing to quantize and output which includes obtaining an input for an object pixel, which is represented by a vector in a first color space. A modified input equal to the input plus a sum of errors from the other pixels in a neighborhood of the pixel object is generated. is determined for each color component, in the first color space, where corresponding color components of the modified input are located with respect to a pre-established range. If the color component of the modified input is greater than the preset range, then this color component for an output is determined to be on; if smaller than the preset range, then this color component for the output is determined to be off; and if within the pre-established range, then that color component for the output is determined to be unknown. A modified modified input is mapped to a perception color space when any color component of the output is unknown. Colors consistent with the color component of the output that have already been determined are also mapped to the perception color space. The color in the perception color space is chosen. An output in the first color space with the color components on and off is generated consistent with the determinations and / or the choices made. The error for the object pixel is then calculated as the difference between the output and the modified input.