JP2017111514A5 - - Google Patents

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JP2017111514A5
JP2017111514A5 JP2015243572A JP2015243572A JP2017111514A5 JP 2017111514 A5 JP2017111514 A5 JP 2017111514A5 JP 2015243572 A JP2015243572 A JP 2015243572A JP 2015243572 A JP2015243572 A JP 2015243572A JP 2017111514 A5 JP2017111514 A5 JP 2017111514A5
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color
identification
image data
detected
image processing
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JP2015243572A
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JP6704722B2 (en
JP2017111514A (en
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Claims (8)

画像データの色ヒストグラムを取得する第1取得手段と、
前記第1取得手段により取得された色ヒストグラムに基づいて、前記画像データにおいて識別させる識別色を検出する第1検出手段と、
前記画像データにおける前記第1検出手段により検出された前記識別色の色を補正する処理を行う補正手段と、を有し、
前記補正手段は、前記第1検出手段により検出された複数の前記識別色同士の色差が所定値以上となるように前記識別色の色を補正することを特徴とする画像処理装置。
First acquisition means for acquiring a color histogram of image data;
First detection means for detecting an identification color to be identified in the image data based on the color histogram acquired by the first acquisition means;
Correction means for performing a process of correcting the color of the identification color detected by the first detection means in the image data,
The image processing apparatus, wherein the correction unit corrects the color of the identification color so that a color difference between the plurality of identification colors detected by the first detection unit is a predetermined value or more.
前記補正手段は、複数の前記識別色について所定の色空間座標系における距離が所定値以上となるように、前記画像データにおける前記識別色の色を補正することを特徴とする請求項1に記載の画像処理装置。   The correction unit corrects the color of the identification color in the image data so that a distance in a predetermined color space coordinate system is a predetermined value or more for a plurality of the identification colors. Image processing apparatus. 前記第1検出手段は、前記第1取得手段により取得された色ヒストグラムにおいて、第1閾値以上の頻度を有する階調値であり、複数の前記第1閾値以上の頻度を有する階調値の間に第2閾値未満の階調値が存在する場合に、前記第1閾値以上の頻度を有する階調値を、前記識別色として検出することを特徴とする請求項1または2に記載の画像処理装置。   The first detection means is a gradation value having a frequency equal to or higher than a first threshold in the color histogram acquired by the first acquisition means, and a plurality of gradation values having a frequency equal to or higher than the first threshold. 3. The image processing according to claim 1, wherein when there is a gradation value less than a second threshold value, a gradation value having a frequency equal to or higher than the first threshold value is detected as the identification color. apparatus. 環境光に関する情報を取得する第2取得手段を有し、
前記補正手段は、前記第1検出手段により検出された前記識別色を、前記環境光に関する情報に基づいて調整し、前記調整された前記識別色同士の色差が所定値以上となるように前記識別色の色を補正することを特徴とする請求項1に記載の画像処理装置。
Having a second acquisition means for acquiring information relating to ambient light;
The correction unit adjusts the identification color detected by the first detection unit based on information about the ambient light, and the identification color is adjusted so that a color difference between the adjusted identification colors is equal to or greater than a predetermined value. The image processing apparatus according to claim 1, wherein the color of the color is corrected.
前記画像データにおける領域を検出する第2検出手段を有し、
前記第1取得手段は、前記第2検出手段により検出された領域の色ヒストグラムを取得し、
前記第1検出手段は、前記領域の色ヒストグラムに基づいて、前記識別色を検出し、
前記補正手段は、前記第1検出手段により検出された複数の前記識別色同士の色差が所定値以上となるように前記識別色の色を補正することを特徴とする請求項1に記載の画像処理装置。
Second detection means for detecting a region in the image data;
The first acquisition means acquires a color histogram of the area detected by the second detection means,
Wherein the first detecting means, based on the color histogram of the area, detecting said identification color,
2. The image according to claim 1, wherein the correction unit corrects the color of the identification color so that a color difference between the plurality of identification colors detected by the first detection unit is equal to or greater than a predetermined value. Processing equipment.
前記識別色は、白及び黒を含むことを特徴とする請求項1に記載の画像処理装置。   The image processing apparatus according to claim 1, wherein the identification color includes white and black. 画像データの色ヒストグラムを取得する取得工程と、
前記取得工程で取得された前記色ヒストグラムに基づいて、前記画像データにおいて識別させる識別色を検出する検出工程と、
前記画像データにおける前記識別色の色を補正する処理を行う補正工程と、を有し、
前記補正工程において、複数の前記識別色同士の色差が所定値以上となるように前記識別色の色を補正することを特徴とする画像処理方法。
An acquisition step of acquiring a color histogram of the image data;
A detection step of detecting an identification color to be identified in the image data based on the color histogram acquired in the acquisition step;
A correction step of performing a process of correcting the color of the identification color in the image data,
In the correction step, the color of the identification color is corrected so that a color difference between the plurality of identification colors is a predetermined value or more.
請求項7に記載の画像処理方法の各ステップをコンピュータに実行させるためのプログラム。A program for causing a computer to execute each step of the image processing method according to claim 7.
JP2015243572A 2015-12-14 2015-12-14 Image processing apparatus and image processing method Active JP6704722B2 (en)

Priority Applications (1)

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JP2015243572A JP6704722B2 (en) 2015-12-14 2015-12-14 Image processing apparatus and image processing method

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JP2015243572A JP6704722B2 (en) 2015-12-14 2015-12-14 Image processing apparatus and image processing method

Publications (3)

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JP2017111514A JP2017111514A (en) 2017-06-22
JP2017111514A5 true JP2017111514A5 (en) 2019-01-31
JP6704722B2 JP6704722B2 (en) 2020-06-03

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