JP2011061731A5

JP2011061731A5 -

Info

Publication number: JP2011061731A5
Application number: JP2009212331A
Authority: JP
Filing date: 2009-09-14
Publication date: 2012-11-01
Anticipated expiration: 2029-09-14

Description

本発明に係る画像処理装置は、入力画像の第１の輝度レンジ情報を取得する入力画像輝度レンジ情報取得手段と、前記入力画像内の鏡面反射領域を抽出する鏡面反射領域抽出手段と、前記第１の輝度レンジ情報、及び前記鏡面反射領域に基づいて、前記入力画像の光沢度を算出する光沢度算出手段と、画像出力装置の第２の輝度レンジ情報を取得する画像出力装置輝度レンジ情報取得手段と、前記光沢度、及び前記第２の輝度レンジ情報に基づいて、前記画像出力装置から出力される画像における反射領域情報を算出する出力画像反射領域情報算出手段と、前記反射領域情報に基づいて、前記入力画像を補正する補正手段とを有する。 An image processing apparatus according to the present invention includes an input image luminance range information acquisition unit that acquires first luminance range information of an input image, a specular reflection region extraction unit that extracts a specular reflection region in the input image, and the first 1 of the luminance range information, and based on said specular reflection area, and the gloss degree calculating means for calculating the glossiness of the input image, the image output device luminance range information acquisition for acquiring the second brightness range information of the image output device Based on the reflection area information, output image reflection area information calculation means for calculating reflection area information in the image output from the image output device based on the glossiness and the second luminance range information. Correction means for correcting the input image.

本発明に係る画像処理方法は、入力画像の第１の輝度レンジ情報を取得する入力画像輝度レンジ情報取得ステップと、前記入力画像内の鏡面反射領域を抽出する鏡面反射領域抽出ステップと、前記第１の輝度レンジ情報、及び前記鏡面反射領域に基づいて、前記入力画像の光沢度を算出する光沢度算出ステップと、画像出力装置の第２の輝度レンジ情報を取得する画像出力装置輝度レンジ情報取得ステップと、前記光沢度、及び前記第２の輝度レンジ情報に基づいて、前記画像出力装置から出力される画像における反射領域情報を算出する出力画像反射領域情報算出ステップと、前記反射領域情報に基づいて、前記入力画像を補正する補正ステップとを有する。 An image processing method according to the present invention includes an input image luminance range information acquisition step of acquiring first luminance range information of an input image, a specular reflection region extraction step of extracting a specular reflection region in the input image, and the first 1 of the luminance range information, and based on said specular reflection area, and the gloss degree calculating step of calculating the glossiness of the input image, the image output device luminance range information acquisition for acquiring the second brightness range information of the image output device An output image reflection area information calculating step for calculating reflection area information in an image output from the image output device based on the glossiness and the second luminance range information; and based on the reflection area information. And a correction step for correcting the input image.

Claims

Input image luminance range information acquisition means for acquiring first luminance range information of the input image;
Specular reflection region extraction means for extracting a specular reflection region in the input image;
It said first luminance range information, and based on the specular reflection area, and the gloss degree calculating means for calculating the glossiness of the input image,
Image output device luminance range information acquisition means for acquiring second luminance range information of the image output device;
Output image reflection area information calculating means for calculating reflection area information in an image output from the image output device based on the glossiness and the second luminance range information;
An image processing apparatus comprising: correction means for correcting the input image based on the reflection area information.

The first luminance range information is luminance range information of an image display device that displayed the input image when the input image was created,
The image processing apparatus according to claim 1, wherein the input image luminance range information acquisition unit acquires the first luminance range information from a profile embedded in the input image.

The second luminance range information includes information on the type of the image output device, the output medium used for output in the image output device, and the brightness of illumination used for observing the image output to the output medium. The image processing apparatus according to claim 1, wherein the image processing apparatus is an image processing apparatus.

Before Kiho positive means, the image processing apparatus according to any one of claims 1 to 3, characterized in that for correcting the intensity and spread of the brightness distribution of the specular reflection region of the input image.

The image processing apparatus according to claim 1, wherein the output image reflection area information calculation unit calculates the reflection area information using an iso-glossy curved surface.

An input image luminance range information acquisition step for acquiring first luminance range information of the input image;
A specular reflection region extracting step for extracting a specular reflection region in the input image;
Said first luminance range information, and based on the specular reflection area, and the gloss degree calculating step of calculating the glossiness of the input image,
An image output device luminance range information acquisition step for acquiring second luminance range information of the image output device;
An output image reflection area information calculation step of calculating reflection area information in an image output from the image output device based on the glossiness and the second luminance range information;
An image processing method comprising: a correction step of correcting the input image based on the reflection area information.

A computer program that, when executed by a computer, causes the computer to function as each unit of the image processing apparatus according to any one of claims 1 to 5.