JP2019204225A5 - - Google Patents
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- JP2019204225A5 JP2019204225A5 JP2018098058A JP2018098058A JP2019204225A5 JP 2019204225 A5 JP2019204225 A5 JP 2019204225A5 JP 2018098058 A JP2018098058 A JP 2018098058A JP 2018098058 A JP2018098058 A JP 2018098058A JP 2019204225 A5 JP2019204225 A5 JP 2019204225A5
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- 238000005315 distribution function Methods 0.000 claims description 11
- 230000000875 corresponding Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 4
- 230000003287 optical Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims 3
- 230000002194 synthesizing Effects 0.000 claims 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000003672 processing method Methods 0.000 claims 2
- 238000003786 synthesis reaction Methods 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
Description
上記課題を解決するために、本発明は、撮像光学系の点像強度分布関数に起因する画質劣化を補正する補正処理を入力画像に適用することにより補正画像を生成する画像処理手段を備え、前記補正画像に含まれる前記補正処理に由来する補正成分が、前記入力画像に前記点像強度分布関数を適用した場合に前記入力画像に生じる変化に対応する第１の成分に対してローパスフィルタを適用した場合に得られる第２の成分に基づくことを特徴とする画像処理装置を提供する。 In order to solve the above problems, the present invention includes an image processing means for generating a corrected image by applying a correction process for correcting image quality deterioration caused by a point image intensity distribution function of an imaging optical system to an input image. The correction component derived from the correction process included in the correction image applies a low-pass filter to the first component corresponding to the change that occurs in the input image when the point image intensity distribution function is applied to the input image. to provide an image processing apparatus characterized by that is based on a second component obtained when applied.
Claims (11)
前記補正画像に含まれる前記補正処理に由来する補正成分が、前記入力画像に前記点像強度分布関数を適用した場合に前記入力画像に生じる変化に対応する第１の成分に対してローパスフィルタを適用した場合に得られる第２の成分に基づく
ことを特徴とする画像処理装置。 It is provided with an image processing means for generating a corrected image by applying a correction process for correcting image quality deterioration caused by a point image intensity distribution function of an imaging optical system to an input image.
The correction component derived from the correction process included in the correction image applies a low-pass filter to the first component corresponding to the change that occurs in the input image when the point image intensity distribution function is applied to the input image. the image processing apparatus characterized by brute group to a second component obtained when applied.
デルタ関数と前記点像強度分布関数との差に対応する第１の中間フィルタに前記ローパスフィルタを適用した場合に得られる第２の中間フィルタに基づく補正フィルタを生成するフィルタ生成手段と、
前記補正フィルタを前記入力画像に適用するフィルタ適用手段と、
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 means
A filter generation means for generating a correction filter that is based on the second intermediate filter obtained in the case of applying the low-pass filter to the first intermediate filter corresponding to the difference of the delta function and the point image intensity distribution function,
A filter application means for applying the correction filter to the input image, and
The image processing apparatus according to claim 1, wherein the image processing apparatus includes.
デルタ関数と前記点像強度分布関数との差に対応するフィルタを前記入力画像に適用することにより前記第１の成分を取得し、
前記ローパスフィルタを前記第１の成分に適用することにより前記第２の成分を取得し、
前記第２の成分、又は前記第２の成分に所定の係数を乗じることにより得られる成分を、前記入力画像に加算する
ことを特徴とする請求項１に記載の画像処理装置。 The image processing means
The first component is obtained by applying a filter corresponding to the difference between the delta function and the point image intensity distribution function to the input image.
By applying the low-pass filter to the first component, the second component is obtained.
The image processing apparatus according to claim 1, wherein the second component or a component obtained by multiplying the second component by a predetermined coefficient is added to the input image.
ことを特徴とする請求項１に記載の画像処理装置。 Wherein the correction component, an image processing apparatus according to claim 1, characterized in that that is based on the third component obtained when combining the first component and the second component at a predetermined composite ratio ..
デルタ関数と前記点像強度分布関数との差に対応する第１の中間フィルタと、前記ローパスフィルタを前記第１の中間フィルタに適用した場合に得られる第２の中間フィルタとを前記所定の合成率で合成した場合に得られる第３の中間フィルタに基づく補正フィルタを生成するフィルタ生成手段と、
前記補正フィルタを前記入力画像に適用するフィルタ適用手段と、
を含むことを特徴とする請求項４に記載の画像処理装置。 The image processing means
The predetermined combination of a first intermediate filter corresponding to the difference between the delta function and the point image intensity distribution function and a second intermediate filter obtained when the low-pass filter is applied to the first intermediate filter. a filter generation means for generating a group brute correction filter to the third intermediate filter obtained when synthesized at a rate,
A filter application means for applying the correction filter to the input image, and
The image processing apparatus according to claim 4, wherein the image processing apparatus includes.
デルタ関数と前記点像強度分布関数との差に対応するフィルタを前記入力画像に適用することにより前記第１の成分を取得し、
前記ローパスフィルタを前記第１の成分に適用することにより前記第２の成分を取得し、
前記第１の成分と前記第２の成分とを前記所定の合成率で合成することにより第３の成分を取得し、
前記第３の成分、又は前記第３の成分に所定の係数を乗じることにより得られる成分を、前記入力画像に加算する
ことを特徴とする請求項４に記載の画像処理装置。 The image processing means
The first component is obtained by applying a filter corresponding to the difference between the delta function and the point image intensity distribution function to the input image.
By applying the low-pass filter to the first component, the second component is obtained.
A third component is obtained by synthesizing the first component and the second component at the predetermined synthesis rate.
The image processing apparatus according to claim 4, wherein the third component or a component obtained by multiplying the third component by a predetermined coefficient is added to the input image.
ことを特徴とする請求項４乃至６のいずれか１項に記載の画像処理装置。 Based on the ISO sensitivity at the time of capturing the input image, when the ISO sensitivity is the first value, the ratio of the second component to the first component is the ratio of the ISO sensitivity to the first value. The image processing apparatus according to any one of claims 4 to 6, further comprising a determination means for determining the predetermined synthesis rate so as to be larger than the case where the second value is smaller. ..
ことを特徴とする請求項１乃至７のいずれか１項に記載の画像処理装置。 The low-pass filter, the image processing apparatus according to any one of claims 1 to 7, characterized in that that is based on the point image intensity distribution function.
ことを特徴とする請求項１乃至８のいずれか１項に記載の画像処理装置。 The image processing apparatus according to any one of claims 1 to 8, further comprising an imaging means for generating the input image.
撮像光学系の点像強度分布関数に起因する画質劣化を補正する補正処理を入力画像に適用することにより補正画像を生成する画像処理工程を備え、
前記補正画像に含まれる前記補正処理に由来する補正成分が、前記入力画像に前記点像強度分布関数を適用した場合に前記入力画像に生じる変化に対応する第１の成分に対してローパスフィルタを適用した場合に得られる第２の成分に基づく
ことを特徴とする画像処理方法。 An image processing method executed by an image processing device.
It is provided with an image processing step of generating a corrected image by applying a correction process for correcting image quality deterioration caused by a point image intensity distribution function of an imaging optical system to an input image.
The correction component derived from the correction process included in the correction image applies a low-pass filter to the first component corresponding to the change that occurs in the input image when the point image intensity distribution function is applied to the input image. image processing method, characterized in that that is based on a second component obtained when applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018098058A JP7101539B2 (en) | 2018-05-22 | 2018-05-22 | Image processing equipment, image processing methods, and programs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018098058A JP7101539B2 (en) | 2018-05-22 | 2018-05-22 | Image processing equipment, image processing methods, and programs |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019204225A JP2019204225A (en) | 2019-11-28 |
| JP2019204225A5 true JP2019204225A5 (en) | 2021-07-26 |
| JP7101539B2 JP7101539B2 (en) | 2022-07-15 |
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| JP2018098058A Active JP7101539B2 (en) | 2018-05-22 | 2018-05-22 | Image processing equipment, image processing methods, and programs |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3343405B2 (en) * | 1993-07-22 | 2002-11-11 | 松下電器産業株式会社 | Image contour enhancer |
| JP4453777B2 (en) * | 2008-07-15 | 2010-04-21 | 日本ビクター株式会社 | Image quality improving apparatus and method |
| JP5223742B2 (en) * | 2009-03-16 | 2013-06-26 | 富士通セミコンダクター株式会社 | Edge-enhanced image processing apparatus |
| JP6124849B2 (en) * | 2013-10-09 | 2017-05-10 | キヤノン株式会社 | Image processing method, imaging apparatus using the same, image processing apparatus, and image processing program |
| JP6768312B2 (en) * | 2016-03-08 | 2020-10-14 | キヤノン株式会社 | Image processing equipment, optical equipment, image processing methods, image processing programs, and recording media |
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2018
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