Image processing apparatus, image processing method, and computer-readable medium

摘要

An apparatus comprises: a first conversion unit configured to convert a first signal value serving as an output signal of each of a plurality of color materials into a value indicating an amount of each of the plurality of color materials; a control unit configured to control the value indicating the amount of each of the plurality of color materials based on a limit value for a total amount of the plurality of color materials for each pixel; and a second conversion unit configured to convert the value indicating the amount of each of the plurality of color materials that is controlled, into a second signal value serving as a corresponding output value, wherein when the total amount of the plurality of color materials based on the first signal value is not larger than the limit value in a pixel of interest, the control unit outputs the first signal value.

主权项

1. An image processing apparatus, comprising:
a first correction unit configured to perform correction using first correction characteristics to a first pixel value of image data; a comparison unit configured to compare a limit value with a value calculated from a second pixel value which has been obtained by the correction by the first correction unit; a control unit configured, if the calculated value is greater than the limit value as a result of the comparison by the comparison unit, to control the second pixel value so that the calculated value becomes equal to or less than the limit value; a second correction unit configured to perform correction using second correction characteristics to a third pixel value which has been obtained by the controlling by the control unit; and an output unit configured to output a pixel value which has been obtained by the correction by the second correction unit, wherein if the calculated value is equal to or less than the limit value as a result of the comparison by the comparison unit, the control unit outputs the first pixel value by the output unit, and wherein the second correction characteristics are inverse characteristics of the first correction characteristics.