Claims
- 1. A circuit for processing pixel color values, comprising:
- means for receiving a color value, the color value having a lower order plurality of bits and a higher order plurality of bits;
- means for receiving a second value, the second value having a lower order plurality of bits and a higher order plurality of bits, such that the higher order plurality of bits of the second value represent a dither value corresponding to a dither matrix and the lower order plurality of bits of the second value are the higher order plurality of bits of the color value; and
- means for adding the color value to the second value to generate a sum value having a lower order plurality of bits and a higher order plurality of bits and for outputting the higher order plurality of bits of the sum value as a corrected and dithered color value.
- 2. A method of processing pixel values, the method comprising the steps of:
- receiving a pixel value;
- combining at least a portion of the pixel value with a dither value to form a second value; and
- adding the pixel value to the second value to generate a sum value representing a dithered and corrected pixel value.
- 3. A method according to claim 2, wherein the combining step comprises the step of concatenating at least a portion of the pixel value with the dither value to form the second value.
- 4. A method according to claim 2, wherein the dither value corresponds to a dither matrix.
- 5. A method according to claim 2, wherein the corrected and dithered pixel value comprises a scale-corrected and dithered pixel value.
- 6. A method of processing pixel values, the method comprising the steps of:
- receiving a pixel value having a lower order portion and a higher order portion;
- receiving a second value having a lower order portion and a higher order portion, wherein the higher order portion of the second value represents a dither value, and wherein the lower order portion of the second value includes the higher order portion of the pixel value; and
- adding the pixel value to the second value to generate a sum value having a lower order portion and a higher order portion, the higher order portion of the sum value representing a dithered and scale-corrected pixel value.
- 7. A method according to claim 6, wherein each of said portions comprises a plurality of bits.
- 8. A method according to claim 6, wherein the dither value corresponds to a dither matrix.
Parent Case Info
This is a divisional of application Ser. No. 08/616,881, filed Mar. 15, 1996.
US Referenced Citations (12)
Divisions (1)
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Number |
Date |
Country |
Parent |
616881 |
Mar 1996 |
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