JP2015055988A5

JP2015055988A5 -

Info

Publication number: JP2015055988A5
Application number: JP2013188464A
Authority: JP
Filing date: 2013-09-11
Publication date: 2016-10-20
Anticipated expiration: 2033-09-11

Description

本発明は、複数の画像データを合成する画像処理装置であって、前記複数の画像データのうち１つを基準画像とし、当該基準画像を除いた前記複数の画像データを対象画像としたとき、前記基準画像の処理画素位置における画素に類似する合成候補画素を前記対象画像から算出する合成候補画素算出手段と、前記合成候補画素算出手段によって算出された前記合成候補画素の中から合成に使用する画素を選択する合成画素選択手段と、前記合成画素選択手段によって選択した画素を合成する合成処理手段とを備えたことを特徴とする。 The present invention is an image processing apparatus for combining a plurality of image data, wherein one of the plurality of image data is a reference image, and the plurality of image data excluding the reference image is a target image. A synthesis candidate pixel calculating unit that calculates a synthesis candidate pixel similar to the pixel at the processing pixel position of the reference image from the target image, and the synthesis candidate pixel calculated by the synthesis candidate pixel calculation unit is used for synthesis. The image processing apparatus includes: a combined pixel selecting unit that selects a pixel; and a combining processing unit that combines the pixels selected by the combined pixel selecting unit.

Claims

An image processing apparatus for combining a plurality of image data,
When one of the plurality of image data is a reference image and the plurality of image data excluding the reference image is a target image, a synthesis candidate pixel similar to a pixel at a processing pixel position of the reference image is the target. A synthesis candidate pixel calculation means for calculating from an image;
Combined pixel selection means for selecting a pixel to be used for combining from the combined candidate pixels calculated by the combined candidate pixel calculating means;
An image processing apparatus comprising: a combining processing unit that combines the pixels selected by the combining pixel selecting unit.

It further comprises a composite pixel number setting means for setting the number of pixels used for composition,
When the number of the synthesis candidate pixels calculated from the target image by the synthesis candidate pixel calculation unit is smaller than the number of pixels used for the synthesis set by the synthesis pixel number setting unit, the synthesis candidate pixel calculation unit The image processing apparatus according to claim 1, wherein the synthesis candidate pixel is calculated from the reference image.

The synthesis candidate pixel calculation means uses a block composed of a plurality of pixels centered on a processing pixel position of the reference image as a reference block, and a block composed of a plurality of pixels in a specific area of the target image as a target block The image processing apparatus according to claim 1, wherein the combination candidate pixel is calculated by comparing the reference block with the target block.

The synthesis candidate pixel calculation means uses a block composed of a plurality of pixels centered on a processing pixel position of the reference image as a reference block, and a block composed of a plurality of pixels in a specific area of the reference image as a target block The image processing apparatus according to claim 2, wherein the combination candidate pixel is calculated by comparing the reference block with the target block.

The image processing apparatus according to claim 1, wherein the synthesis pixel selection unit randomly selects a pixel to be used for synthesis from the synthesis candidate pixels.

The synthesis processing means calculates an output value by using a pixel value of the synthesis candidate pixel and a weight and similarity for the synthesis candidate pixel,
The image processing apparatus according to claim 1, wherein a weight for the synthesis candidate pixel calculated from the target image is larger than a weight for the synthesis candidate pixel calculated from the reference image.

The image processing apparatus according to claim 1, further comprising a development processing unit that performs a development process on the image data synthesized by the synthesis processing unit.

An image processing method executed by an image processing apparatus that combines a plurality of image data,
When one of the plurality of image data is a reference image and the plurality of image data excluding the reference image is a target image, a synthesis candidate pixel similar to a pixel at a processing pixel position of the reference image is the target. A calculation step for calculating from an image;
A selection step of selecting a pixel to be used for synthesis from the synthesis candidate pixels calculated in the calculation step;
An image processing method comprising: a combining step of combining the pixels selected in the selecting step.

A program for causing a computer to function as the image processing apparatus according to any one of claims 1 to 7.