CN102752476A - Method and device for adjusting image printing light in real time - Google Patents

Method and device for adjusting image printing light in real time Download PDF

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Publication number
CN102752476A
CN102752476A CN2011103921936A CN201110392193A CN102752476A CN 102752476 A CN102752476 A CN 102752476A CN 2011103921936 A CN2011103921936 A CN 2011103921936A CN 201110392193 A CN201110392193 A CN 201110392193A CN 102752476 A CN102752476 A CN 102752476A
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CN
China
Prior art keywords
color space
adjusting
printing light
image printing
original image
Prior art date
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Pending
Application number
CN2011103921936A
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Chinese (zh)
Inventor
苏文涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Digital Video Beijing Ltd
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China Digital Video Beijing Ltd
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Publication date
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Priority to CN2011103921936A priority Critical patent/CN102752476A/en
Publication of CN102752476A publication Critical patent/CN102752476A/en
Pending legal-status Critical Current

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Abstract

An embodiment of the invention discloses a method and a device for adjusting an image printing light in real time. The method includes receiving adjustment information from an adjusting original image printing light of a user; calculating an adjusted color space value of an original image based on the adjustment information; and updating an original color space value of the original image based on the adjusted color space value and generating a result image after the printing light is adjusted. According to the method and the device for adjusting the image printing light in real time, the component value of red green blue (RGB) color space is adjusted in real time by presetting a conversion equation of YUV color space and the RGB color space, accordingly, the image printing light is adjusted rapidly and in real time.

Description

A kind of method and apparatus of real-time regulated image printing light
Technical field
The present invention relates to technical field of image processing, relate in particular to a kind of method and apparatus of real-time regulated image printing light.
Background technology
RGB (red; Green; Blue) the most frequently used purposes of color space is exactly a display system, and color cathode ray tube, the display of chromatic grating figure all use R, G, B numerical value to drive R, G, B electron gun emitting electrons; And the fluorescent material of the R on the fluorescence excitation screen, G, three kinds of colors of B sends the light of different brightness respectively, and mix the generation shades of colour through addition; Scanner also is through absorbing R, G, the B composition of original copy in the light that reflection or transmission are sent, and representes the color of original copy with it.Rgb color space is called device-dependent color space, because the same width of cloth image of different scanner scanning, can obtain the view data of different color; The display of different model shows same width of cloth image, also has different color display result.Display is different with the rgb space that scanner uses with the true three primary colors colour system of CIE 1931 RGB space, and the latter is and device-independent color space.The color Chooser of btw:Photoshop (Color Picker).The color-values that can show each color of HSB, RGB, LAB and cmyk color space.
The YUV color space is in modern times in the vitascan; Usually adopt tricolo(u)r camera or colored CCD (some coupled apparatus) video camera; Its take the photograph color picture signal, through color separation, amplification correction obtains RGB respectively, obtain brightness signal Y and two color difference signal R-Y, B-Y through matrixer again; Last transmitting terminal is encoded brightness and three signals of aberration respectively, sends with same channel.Here it is our YUV color space of using always.The importance that adopts the YUV color space is that its brightness signal Y is separated with carrier chrominance signal U, V.Do not have U, V component if having only the Y-signal component, the figure of expression is exactly the black and white gray-scale map so like this.Color TV adopts yuv space just in order to solve the compatibling problem of color television set and black and white television set with brightness signal Y, makes black and white television set also can receive colour signal.According to the American National television system committee, the standard of TSC-system formula, when the brightness of white light is represented with Y, it with the relation of red, green, blue three coloured light available as shown in the formula equation describe: Y=0.3R+0.59G+0.11B Here it is brightness-formula commonly used.Aberration U, V are formed by the different proportion compression by B-Y, R-Y.If change into rgb space by yuv space, as long as carry out opposite inverse operation.Similarly also have the Lab color space with the YUV color space, it also is to describe color component with brightness and aberration, and wherein L is that brightness, a and b are respectively each color difference components.
In image processing process, will consider image is carried out printing light adjusting, the i.e. effect of analogue camera filter.
In realizing process of the present invention, the inventor finds to exist in the prior art following shortcoming:
In the prior art, image is carried out printing light when regulating, adjustment process is complicated, can not be fast, regulate in real time.
Summary of the invention
The embodiment of the invention provides a kind of method of real-time regulated image printing light, may further comprise the steps:
Reception is from the adjusting information of user's adjusting original image printing light;
According to the color space value after the adjusting of the said original image of said adjusting information calculations;
Upgrade the original color space value of said original image according to the color space value after the said adjusting, generate the result images of regulating behind the printing light.
Before the adjusting information of said reception from user's adjusting original image printing light, comprising:
Preset the conversion formula of YUV color space and rgb color space.
Said adjusting information is the component value of rgb color space.
Said according to the color space value after the adjusting of the said original image of said adjusting information calculations, comprising:
Obtain said original image, according to the color space value after conversion formula that presets and the adjusting of said adjusting information calculations.
The said conversion formula that presets YUV color space and rgb color space comprises:
Rgb color space changes the YUV color space:
Y=0.299R+0.587G+0.114B
U=0.564(B-Y)
V=0.713(R-Y)
The YUV color space changes rgb color space:
R=Y+1.402V
G=Y-0.344U-0.714V
B=Y+1.772U
Wherein, Y, U and V are YUV color space component values, and R, G and B are the rgb color space component values.
In the embodiments of the invention,, realize the component value of adjustment rgb color space in real time, thereby realize quick, real-time regulated image printing light through presetting the conversion formula of YUV color space and rgb color space.
The embodiment of the invention provides a kind of device of real-time regulated image printing light, comprising:
Regulate information receiving unit, be used to receive adjusting information from user's adjusting original image printing light;
Regulon is used for according to the color space value after the adjusting of the said original image of said adjusting information calculations;
Updating block is used for upgrading according to the color space value after the said adjusting original color space value of said original image, generates the result images of regulating behind the printing light.
Also comprise:
The conversion formula preset unit is used to preset the conversion formula of YUV color space and rgb color space.
Said adjusting information is the component value of rgb color space.
Said according to the color space value after the adjusting of the said original image of said adjusting information calculations, comprising:
Obtain said original image, according to the color space value after conversion formula that presets and the adjusting of said adjusting information calculations.
The said conversion formula that presets YUV color space and rgb color space comprises:
Rgb color space changes the YUV color space:
Y=0.299R+0.587G+0.114B
U=0.564(B-Y)
V=0.713(R-Y)
The YUV color space changes rgb color space:
R=Y+1.402V
G=Y-0.344U-0.714V
B=Y+1.772U
Wherein, Y, U and V are YUV color space component values, and R, G and B are the rgb color space component values.
In the embodiments of the invention,, realize the component value of adjustment rgb color space in real time, thereby realize quick, real-time regulated image printing light through presetting the conversion formula of YUV color space and rgb color space.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram of a kind of real-time regulated image printing light in the embodiment of the invention;
Fig. 2 is the structure drawing of device of a kind of real-time regulated image printing light in the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention one provides a kind of method of real-time regulated image printing light, and is as shown in Figure 1, may further comprise the steps:
Step S101 receives the adjusting information from user's adjusting original image printing light.
Step S102 is according to the color space value after the adjusting of the said original image of said adjusting information calculations;
Step S103 upgrades the original color space value of said original image according to the color space value after the said adjusting, generates the result images of regulating behind the printing light.
Before the adjusting information of said reception from user's adjusting original image printing light, comprising:
Preset the conversion formula of YUV color space and rgb color space.
Said adjusting information is the component value of rgb color space.
Said according to the color space value after the adjusting of the said original image of said adjusting information calculations, comprising:
Obtain said original image, according to the color space value after conversion formula that presets and the adjusting of said adjusting information calculations.
The said conversion formula that presets YUV color space and rgb color space comprises:
Rgb color space changes the YUV color space, like formula 1 to 3:
Y=0.299R+0.587G+0.114B (1)
U=0.564(B-Y) (2)
V=0.713(R-Y) (3)
The YUV color space changes rgb color space, like formula 4 to 6:
R=Y+1.402V (4)
G=Y-0.344U-0.714V (5)
B=Y+1.772U (6)
Wherein, Y, U and V are YUV color space component values, and R, G and B are the rgb color space component values.
The beneficial effect that the technical scheme of the embodiment of the invention is brought is following: through presetting the conversion formula of YUV color space and rgb color space, realize the component value of adjustment rgb color space in real time, thereby realize quick, real-time regulated image printing light.
The embodiment of the invention two provides a kind of device of real-time regulated image printing light, and is as shown in Figure 2, comprising:
Regulate information receiving unit 201, be used to receive adjusting information from user's adjusting original image printing light;
Regulon 202 is used for according to the color space value after the adjusting of the said original image of said adjusting information calculations;
Updating block 203 is used for upgrading according to the color space value after the said adjusting original color space value of said original image, generates the result images of regulating behind the printing light.
Also comprise:
Conversion formula preset unit 204 is used to preset the conversion formula of YUV color space and rgb color space.
Said adjusting information is the component value of rgb color space.
Said according to the color space value after the adjusting of the said original image of said adjusting information calculations, comprising:
Obtain said original image, according to the color space value after conversion formula that presets and the adjusting of said adjusting information calculations.
The beneficial effect that the technical scheme of the embodiment of the invention is brought is following: through presetting the conversion formula of YUV color space and rgb color space, realize the component value of adjustment rgb color space in real time, thereby realize quick, real-time regulated image printing light.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize through hardware, also can realize by the mode that software adds necessary general hardware platform; Based on such understanding; Technical scheme of the present invention can be come out with the embodied of software product, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk; Portable hard drive etc.) in; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
In a word, the above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the method for a real-time regulated image printing light is characterized in that, may further comprise the steps:
Reception is from the adjusting information of user's adjusting original image printing light;
According to the color space value after the adjusting of the said original image of said adjusting information calculations;
Upgrade the original color space value of said original image according to the color space value after the said adjusting, generate the result images of regulating behind the printing light.
2. a kind of according to claim 1 method of real-time regulated image printing light is characterized in that, before the adjusting information of said reception from user's adjusting original image printing light, comprising:
Preset the conversion formula of YUV color space and rgb color space.
3. a kind of according to claim 1 method of real-time regulated image printing light is characterized in that, said adjusting information is the component value of rgb color space.
4. like the method for claim 2 and 3 said a kind of real-time regulated image printing lights, it is characterized in that, said according to the color space value after the adjusting of the said original image of said adjusting information calculations, comprising:
Obtain said original image, according to the color space value after conversion formula that presets and the adjusting of said adjusting information calculations.
5. like the method for the said a kind of real-time regulated image printing light of claim 2, it is characterized in that the said conversion formula that presets YUV color space and rgb color space comprises:
Rgb color space changes the YUV color space:
Y=0.299R+0.587G+0.114B
U=0.564(B-Y)
V=0.713(R-Y)
The YUV color space changes rgb color space:
R=Y+1.402V
G=Y-0.344U-0.714V
B=Y+1.772U
Wherein, Y, U and V are YUV color space component values, and R, G and B are the rgb color space component values.
6. the device of a real-time regulated image printing light is characterized in that, comprising:
Regulate information receiving unit, be used to receive adjusting information from user's adjusting original image printing light;
Regulon is used for according to the color space value after the adjusting of the said original image of said adjusting information calculations;
Updating block is used for upgrading according to the color space value after the said adjusting original color space value of said original image, generates the result images of regulating behind the printing light.
7. like the device of the said a kind of real-time regulated image printing light of claim 6, it is characterized in that, before the adjusting information of said reception from user's adjusting original image printing light, comprising:
The conversion formula preset unit is used to preset the conversion formula of YUV color space and rgb color space.
8. like the device of the said a kind of real-time regulated image printing light of claim 6, it is characterized in that said adjusting information is the component value of rgb color space.
9. like the device of claim 7 and 8 said a kind of real-time regulated image printing lights, it is characterized in that, said according to the color space value after the adjusting of the said original image of said adjusting information calculations, comprising:
Obtain said original image, according to the color space value after conversion formula that presets and the adjusting of said adjusting information calculations.
10. like the device of the said a kind of real-time regulated image printing light of claim 7, it is characterized in that the said conversion formula that presets YUV color space and rgb color space comprises:
Rgb color space changes the YUV color space:
Y=0.299R+0.587G+0.114B
U=0.564(B-Y)
V=0.713(R-Y)
The YUV color space changes rgb color space:
R=Y+1.402V
G=Y-0.344U-0.714V
B=Y+1.772U
Wherein, Y, U and V are YUV color space component values, and R, G and B are the rgb color space component values.
CN2011103921936A 2011-11-30 2011-11-30 Method and device for adjusting image printing light in real time Pending CN102752476A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2011103921936A CN102752476A (en) 2011-11-30 2011-11-30 Method and device for adjusting image printing light in real time

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105164994A (en) * 2013-05-31 2015-12-16 英特尔公司 Semi-fixed-hue gamut compression
CN112217989A (en) * 2020-09-25 2021-01-12 北京小米移动软件有限公司 Image display method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155600A (en) * 1988-08-30 1992-10-13 Matsushita Electric Industrial Co., Ltd. Video disk playback apparatus
US5787192A (en) * 1994-09-27 1998-07-28 Kabushikaisha Equos Research Image data compression apparatus and image data communication system
US20020033900A1 (en) * 2000-06-14 2002-03-21 Yoshihiro Honma Image signal processing apparatus
CN101080027A (en) * 2006-05-22 2007-11-28 普立尔科技股份有限公司 Method for improving difference of LCD image quality under different watching mode
CN101355634A (en) * 2008-08-26 2009-01-28 北京中星微电子有限公司 Method and system for regulating image chromaticity

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155600A (en) * 1988-08-30 1992-10-13 Matsushita Electric Industrial Co., Ltd. Video disk playback apparatus
US5787192A (en) * 1994-09-27 1998-07-28 Kabushikaisha Equos Research Image data compression apparatus and image data communication system
US20020033900A1 (en) * 2000-06-14 2002-03-21 Yoshihiro Honma Image signal processing apparatus
CN101080027A (en) * 2006-05-22 2007-11-28 普立尔科技股份有限公司 Method for improving difference of LCD image quality under different watching mode
CN101355634A (en) * 2008-08-26 2009-01-28 北京中星微电子有限公司 Method and system for regulating image chromaticity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105164994A (en) * 2013-05-31 2015-12-16 英特尔公司 Semi-fixed-hue gamut compression
CN105164994B (en) * 2013-05-31 2018-06-08 英特尔公司 Semifixed tone gamut compression
CN112217989A (en) * 2020-09-25 2021-01-12 北京小米移动软件有限公司 Image display method and device

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Application publication date: 20121024