Information processing apparatus, image processing method, and storage medium that determine tone characteristics for respective object signals

摘要

An image processing apparatus includes an acquisition unit to acquire an image. A detection unit detects each object region from the image acquired by the acquisition unit. A luminance distribution calculation unit calculate a plurality of luminance distribution information for respective object regions detected by the detection unit. A representative luminance value calculation unit calculates a plurality of representative luminance values for respective detected object regions. A determination unit determines tone characteristics for respective object regions based on the plurality of luminance distribution information for respective object regions calculated by the luminance distribution calculation unit and a relationship among the representative luminance values for the respective object regions calculated by the representative luminance value calculation unit.

主权项

1. An image processing apparatus comprising:
an acquisition unit that acquires an image having object regions; a detector that detects each object region from the image acquired by said acquisition unit; a luminance distribution calculator that calculates a plurality of luminance distribution information for respective object regions detected by said detector; a representative luminance value calculator that calculates a plurality of representative luminance values for respective object regions detected by said detector; and a determination unit that determines tone characteristics, which are used for tone compression, for respective object regions, wherein said determination unit determines the tone characteristic for a target object region based on a luminance distribution of the target object region and a difference between the representative luminance value of the target object region and the representative luminance value other than the target object region.