JP2004260853A5 - - Google Patents
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- JP2004260853A5 JP2004260853A5 JP2004132787A JP2004132787A JP2004260853A5 JP 2004260853 A5 JP2004260853 A5 JP 2004260853A5 JP 2004132787 A JP2004132787 A JP 2004132787A JP 2004132787 A JP2004132787 A JP 2004132787A JP 2004260853 A5 JP2004260853 A5 JP 2004260853A5
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- image processing
- processing apparatus
- color correction
- saturation enhancement
- desired color
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Claims (12)
入力系ガマットよりも出力系ガマットの方が広い領域において、彩度強調処理の程度を、所定の色度座標値と白色点の色度座標値との距離に基づき規定される前記入力系ガマットの大きさに応じて変更して、画像入力信号の所望の色点に対して彩度強調処理を施す彩度強調用色補正テーブルを用いて所望の色補正を行なう画像処理装置。 An image processing apparatus that performs desired color correction on an image input signal using a color correction table,
In a region where the output gamut is wider than the input gamut, the degree of saturation enhancement is determined based on the distance between the predetermined chromaticity coordinate value and the chromaticity coordinate value of the white point . An image processing apparatus that performs a desired color correction using a saturation enhancement color correction table that performs a saturation enhancement process on a desired color point of an image input signal by changing the size.
前記彩度強調用色補正テーブルによる彩度強調処理の程度を、前記入力系ガマットの種類に応じて変更する画像処理装置。 The image processing apparatus according to claim 1,
The degree of saturation enhancement processing by the saturation enhancement for color correction table, the image processing apparatus is changed according to the type of the input system gamut.
前記入力系ガマットの大きさが小さくなるにしたがって、前記彩度強調用色補正テーブルによる彩度強調処理の程度を大きくする画像処理装置。 The image processing apparatus according to claim 1, wherein:
An image processing apparatus that increases the degree of saturation enhancement processing by the saturation enhancement color correction table as the size of the input gamut decreases.
前記入力系ガマットよりも前記出力系ガマットの方が狭い領域において、前記画像入力信号の所望の色点に対して圧縮処理を施す圧縮処理用色補正テーブルを用いて所望の色補正を行なう画像処理装置。 The image processing apparatus according to any one of claims 1 to 3 , wherein
In the narrow region towards said output system gamut than the input system gamut, image processing for desired color correction with the desired color correction table for compression processing for performing compression processing on the color point of the image input signal apparatus.
前記彩度強調用色補正テーブルは、前記所望の色点が無彩色に近い場合、彩度強調処理を行わない画像処理装置。 An image processing apparatus according to any one of claims 1 to 4 , wherein
The saturation enhancement color correction table is an image processing apparatus that does not perform saturation enhancement processing when the desired color point is close to an achromatic color.
前記彩度強調処理が、色相を保存するように行われる、画像処理装置。 The image processing apparatus according to claim 1,
An image processing apparatus, wherein the saturation enhancement process is performed so as to preserve a hue.
前記圧縮処理が、色相を保存するように行われる画像処理装置。 The image processing apparatus according to claim 4 or 5 , wherein
An image processing apparatus in which the compression processing is performed so as to preserve a hue.
前記彩度強調用色補正テーブルは、彩度強調の程度を調整可能である画像処理装置。 The image processing apparatus according to any one of claims 1 to 7 ,
The color correction table for saturation enhancement is an image processing apparatus capable of adjusting the degree of saturation enhancement.
前記彩度強調用色補正テーブルは、彩度強調の限界値を設定可能である画像処理装置。 An image processing apparatus according to any one of claims 1 to 8 ,
The saturation enhancement color correction table is an image processing apparatus in which a saturation enhancement limit value can be set.
赤色成分が所定の赤色閾値未満であり、緑色成分が所定の緑色閾値を超え、青色成分が所定の青色閾値を超える画素が画素全体において所定の割合以上である場合に、彩度強調用色補正テーブルを用いて所望の色補正を行なう画像処理装置。 An image processing apparatus according to any one of claims 1 to 9 ,
Color correction for saturation enhancement when the red component is less than the predetermined red threshold, the green component exceeds the predetermined green threshold, and the number of pixels whose blue component exceeds the predetermined blue threshold is equal to or greater than a predetermined ratio in the entire pixel An image processing apparatus that performs desired color correction using a table.
入力系ガマットよりも出力系ガマットの方が広い領域において、彩度強調処理の程度を、所定の色度座標値と白色点の色度座標値との距離に基づき規定される前記入力系ガマットの大きさに応じて変更して、画像入力信号の所望の色点に対して彩度強調処理を施す彩度強調用色補正テーブルを用いて所望の色補正を行なう画像処理方法。 An image processing method for performing desired color correction on an image input signal using a color correction table,
In a region where the output gamut is wider than the input gamut, the degree of saturation enhancement is determined based on the distance between the predetermined chromaticity coordinate value and the chromaticity coordinate value of the white point . An image processing method for performing desired color correction using a saturation emphasis color correction table for performing saturation emphasis processing on a desired color point of an image input signal, which is changed according to the size.
In a region where the output gamut is wider than the input gamut, the degree of saturation enhancement is determined based on the distance between the predetermined chromaticity coordinate value and the chromaticity coordinate value of the white point . In order to cause a computer to execute image processing for performing desired color correction using a color correction table for saturation enhancement that performs saturation enhancement processing on a desired color point of an image input signal, which is changed according to the size. Program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004132787A JP4524578B2 (en) | 2000-10-06 | 2004-04-28 | Image processing apparatus, image processing method, program, and recording medium |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000308067 | 2000-10-06 | ||
| JP2001033336 | 2001-02-09 | ||
| JP2004132787A JP4524578B2 (en) | 2000-10-06 | 2004-04-28 | Image processing apparatus, image processing method, program, and recording medium |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001279213A Division JP3596677B2 (en) | 2000-10-06 | 2001-09-14 | Image processing apparatus, image processing method, program, and recording medium |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004260853A JP2004260853A (en) | 2004-09-16 |
| JP2004260853A5 true JP2004260853A5 (en) | 2008-10-16 |
| JP4524578B2 JP4524578B2 (en) | 2010-08-18 |
Family
ID=33135646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004132787A Expired - Fee Related JP4524578B2 (en) | 2000-10-06 | 2004-04-28 | Image processing apparatus, image processing method, program, and recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4524578B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101379367B1 (en) * | 2006-11-23 | 2014-03-31 | 티피 비전 홀딩 비.브이. | Gamut adaptation |
| JP4775328B2 (en) * | 2007-06-07 | 2011-09-21 | 富士ゼロックス株式会社 | Image processing apparatus and program |
| JP4957676B2 (en) * | 2008-03-19 | 2012-06-20 | セイコーエプソン株式会社 | Image data analysis apparatus, image data analysis method, and program |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH099082A (en) * | 1995-06-21 | 1997-01-10 | Canon Inc | Color picture processing method and its system |
-
2004
- 2004-04-28 JP JP2004132787A patent/JP4524578B2/en not_active Expired - Fee Related
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