Image processing device, image processing method, and recording medium recording image processing program

Abstract

An image processing device (1) for performing image processing for reducing noise of a captured image includes: an image area calculation unit (110) for measuring brightness variations representing a plurality of image areas based on a plurality of image areas obtained by dividing a captured image The first texture amount, according to the first texture amount, predetermines the image processing target area as the image processing target; the brightness determination part (130), it judges whether it is necessary to adjust the current image processing target area according to the brightness of the current captured image The image processing is performed on the captured image; the texture determination unit (140) calculates the second texture amount representing the brightness deviation of the image processing target area determined by the brightness determination unit to be subject to image processing, and determines whether to use the second texture amount according to the second texture amount image processing is performed on the image processing target area; and an image processing unit (150) that performs image processing on the image processing target area determined by the texture determination unit (140).

Description

technical field [0001] The present invention relates to an image processing device, an image processing method, and a recording medium in which an image processing program is recorded. Background technique [0002] When noise removal processing is performed on captured image data (hereinafter also referred to as “captured image”) acquired by an imaging device, a minute portion of a subject in the captured image may be blurred, that is, the image quality may deteriorate. As a countermeasure against this, a device has been proposed that determines whether noise removal processing is necessary based on the brightness of the captured image, and performs noise removal processing on the captured image when it is judged necessary (for example, refer to Patent Document 1). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2005-94087 Contents of the invention [0006] The problem to be solved by the invention [00...

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Problems solved by technology

[0002] When noise removal processing is performed on captured image data (hereinafter also referred to as "captured image") acquired by an imaging device, a small part of the subject in the captured image may be blurred, that is, the image quality may deteriorate.

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