Patent ID: 9286661
Filing Date: 2016-03-15
CPC Classification: G06K,G06T

Claim Text:
1. A method for processing an image comprising: detecting and outputting an attribute of each pixel of input image data; performing a filtering process in which smoothing is performed on the input image data; detecting an edge amount being N value (where N>2) information from the input image data subjected to the smoothing; removing a chromatic color in a first removal amount according to the detected edge amount from all pixels; removing the chromatic color in a second removal amount according to the detected edge amount from a pixel that has been determined to have a text attribute and an achromatic attribute at the detecting the attribute; and determining a signal-to-noise (S/N) ratio of the input image data, wherein the second removal amount is determined based on a discrete M value (where M>2) corresponding to the edge amount, the filtering process includes smoothing with a different smoothing filter for each attribute of the pixel using a result of detection at the detecting the attribute when the determined S/N ratio exceeds a first threshold, and the filtering process includes emphasizing with a different emphasizing filter for each attribute of the pixel using the result of the detection at the detecting the attribute when the determined S/N ratio is equal to or higher than a second threshold.