Patent ID: 7738139

Claim:
A computer-implemented method of setting an ink stroke for marking up a first portion of an image, the computer-implemented method comprising: under control of one or more computer devices configured with executable instructions, comparing a standard deviation of color values in the first portion to a predetermined threshold; dividing the first portion into a first region and a second region when the standard deviation is above the predetermined threshold; designating the ink stroke having a plurality of colors for application on the first portion when the standard deviation is above the predetermined threshold, comprising: determining a first color value that is visible on the first region of the first portion based on colors displayed in the first region; determining a second color value visible on the second region of the first portion based on the colors displayed in the second region, the second color value different than the first value; and setting the ink stroke for application on the first portion of the image to include a first ink band portion having the first color value and a second ink band portion having the second color value, wherein the first color value is visible in the first region and the second color value is visible in the second region; and designating the ink stroke having a single color for application on the first portion such that the ink stroke is visible on the first portion when the standard deviation is not above the predetermined threshold.