IMAGE PROCESSING DEVICE, METHOD, AND PROGRAM

To appropriately correct an error of an exposure setting occurred in each region due to an imaging sensor.SOLUTION: An image processing device that makes image data imaged by an imaging sensor which can set an exposure in each region correct, includes: estimation means of estimating an error of an exposure setting on the basis of an evaluation value obtained by evaluating a step of grayscale generated in a boundary between regions where the imaging sensor can set the exposure setting; introduction means of introducing a correction value for correcting the error of the exposure setting to be estimated; and updating means of updating an adjustment value for adjusting the image data by using the correction value to be introduced. The introducing means introduces the correction value by normalization so that a mean of a value obtained so as to be corresponding to each region on the basis of the error of the exposure setting becomes a predetermined value.SELECTED DRAWING: Figure 3 【課題】撮像センサに起因して生じる領域毎の露出設定の誤差を適切に補正する。【解決手段】領域毎に露出設定可能な撮像センサにより撮像された画像データに対して補正をする画像処理装置であって、前記撮像センサが露出設定可能な領域間の境界で生じる階調の段差を評価した評価値に基づき露出設定の誤差を推定する推定手段と、前記推定した露出設定の誤差を補正するための補正値を導出する導出手段と、前記導出した補正値を用いて、前記画像データを調整するための調整値を更新する更新手段と、を有し、前記導出手段は、前記露出設定の誤差に基づき各領域に対応して求められた値の平均が所定値となるように正規化することで前記補正値を導出する。【選択図】図３