CN100550990C - Image correction apparatus and method for correcting image - Google Patents
Image correction apparatus and method for correcting image Download PDFInfo
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- CN100550990C CN100550990C CNB2007101613737A CN200710161373A CN100550990C CN 100550990 C CN100550990 C CN 100550990C CN B2007101613737 A CNB2007101613737 A CN B2007101613737A CN 200710161373 A CN200710161373 A CN 200710161373A CN 100550990 C CN100550990 C CN 100550990C
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Abstract
The invention discloses a kind of image correction apparatus.In digital camera, under the reproduced state that shows any document image (photographs) (211), same with the situation (Fig. 5 (a)) of when photographing, selecting photograph mode, demonstration is selected picture (202) by the scene that a plurality of sample images etc. constitute, by carrying out the selection operation of desirable photography scene, select correction mode.The image quality of document image (211) is proofreaied and correct to being equivalent in the standard picture quality of not using under the situation that the photography conditions corresponding with specific photograph mode carried out photography, and adjust according to the photography conditions corresponding, show as correcting image (212) with correction mode.After pressing shutter key, write down correcting image (212) (Fig. 5 (b)).Can give and the identical atmosphere of situation of under being different from the photograph mode in when photography, photographing document image (211).
Description
Technical field
The present invention relates to photographs image correction apparatus, method for correcting image and the computer-readable medium program of proofreading and correct to record.
Background technology
In the past, most digital cameras all possesses the multiple photograph mode of the kind of subjects such as corresponding portrait, landscape, night scene, as long as select the photograph mode corresponding in advance with the kind of subject, when photography, just can automatically set the image quality regularization condition of the document image that is suitable for subject, that is, color contrast, acutance, saturation, white balance, filter etc.
In addition, it is also known for a kind of and above-mentioned different digital camera that has possessed so-called " best scene camera function ", they are in advance in the various more specifically subject kinds of expression (hereinafter referred to as the photography scene), preparation becomes photography a plurality of sample images of sample as a result, the user is selected and the same photography scene of subject that will take from above-mentioned a plurality of sample images in advance by sample image, or has a photography scene of the atmosphere of hobby, when photography, the above-mentioned image quality regularization condition (JP openly speciallys permit the communique spy and opens 2002-10134) that automatic setting is corresponding with selected photography scene.
Above-mentioned best scene camera function has following advantage,, when the diversified multiple photograph mode corresponding with the photography scene is provided, when photography, can share the above-mentioned image quality regularization condition that the family is intended to by simple and reliable ground set symbol that is.
But, even in digital camera, prepared the photograph mode corresponding as described above in advance, also be under many circumstances for all reasons with the subject kind, when photography, do not set any photograph mode and photograph.And, after photography, wish sometimes the photographs of having photographed is added desirable atmosphere.Under these circumstances, the user is as long as for example use image processing software (the so-called software of modifying) arbitrarily, carry out the image quality adjustment of photographs at personal computer, can be processed into the image that has with the same atmosphere of situation of the photograph mode that the time utilizes corresponding specific shot body kind in photography to this photographs.But the image quality of such photographs is adjusted the operation complexity.And, owing to adjust the experience and knowledge that needs in the operation to a certain degree, therefore, exist the problem that is not that anyone can both operate easily at above-mentioned image quality.
Summary of the invention
One embodiment of the present invention are,
In image correction apparatus, have:
The sample image memory cell, it stores a plurality of sample images corresponding with a plurality of subject kinds;
Display unit, its sample image that will be stored in this sample image memory cell shows;
Select control unit, its a plurality of sample images that will be stored in the above-mentioned sample image memory cell are presented at above-mentioned display unit, by the selection operation to any shown sample image, make the user select desirable correction mode; And,
Correcting unit, the image quality of the photographs that it will be obtained by photography according to the image rectification condition of the correction mode correspondence that the user is selected, is proofreaied and correct.
Other execution modes of the present invention are,
In image correction apparatus, have:
Select control unit, it makes the user select desirable correction mode from a plurality of correction modes of corresponding a plurality of subject kinds respectively;
The 1st correcting unit, it is to being proofreaied and correct by photography and the image quality that is recorded in the image in the recording medium under the regulation photograph mode of having used the photography conditions corresponding with specific shot body kind, used standard picture quality under the situation of photography conditions of standard during this image so that this image quality becomes in photography, the photography conditions of this standard is the photography conditions of having removed from the photography conditions of corresponding afore mentioned rules photograph mode the distinctive condition of above-mentioned specific shot body kind; And,
The 2nd correcting unit, it is the image quality of the image after the standard picture quality to being proofreaied and correct by the 1st correcting unit, according to the image quality correcting condition corresponding with the correction mode that the user is selected by above-mentioned selection control unit, proofreaies and correct.
Other execution modes of the present invention are to have in image correction apparatus:
Select control unit, it makes the user select desirable correction mode from a plurality of correction modes of corresponding a plurality of subject kinds respectively; And,
Correcting unit, its under the photograph mode of having used the photography conditions corresponding with specific shot body kind by photography and be recorded in image in the recording medium, implement the treatment for correcting corresponding, the photography conditions of the corresponding afore mentioned rules photograph mode of this difference condition and the corresponding difference that makes the image quality correcting condition of the correction mode that the user selects by above-mentioned selection control unit with the difference condition.
Description of drawings
Fig. 1 is the block diagram of the digital camera of one embodiment of the present of invention.
Fig. 2 is the concept map of storage data of the video memory of presentation graphs 1.
Fig. 3 is the figure of the photography conditions table of presentation graphs 2.
Fig. 4 is the concept map that expression is stored in the data structure of the image file in the video memory of Fig. 1.
Fig. 5 A, Fig. 5 B are the key diagrams of the summary of the expression logging mode of an embodiment and the action under the regeneration mode.
Fig. 6 is the flow chart of contents processing of the MPU under the regeneration mode of an embodiment of expression.
Fig. 7 is illustrated in other photography conditions tables under the situation that comprises mechanical condition in the photography conditions, the figure corresponding with Fig. 3.
Embodiment
Below, embodiments of the present invention are described.Present embodiment relates to the digital camera that comprises image correction apparatus of the present invention, and a best scene camera function and an image quality of the photographs (document image) that the best scene camera function of use is photographed that image correction apparatus of the present invention has above explanation are corrected into the function (hereinafter referred to as best regeneration function) that correspondence is different from the image quality of the photography scene when photographing.
Fig. 1 is the general block diagram of the circuit structure of expression digital camera 1.Digital camera 1 possesses the CCD2 with camera function, and, mainly be that the center constitutes with MPU3, the image that this MPU3 has possessed taking by CCD2 compresses, decompresses, the image processing function of the image file of the Exif form that generates, regenerates.
The optical image of subject, optical system 4 and aperture 6 by being made of zoom lens and condenser lens etc. are imaged on the sensitive surface of CCD2.Optical system 4 is maintained on the driving mechanism 5 that is made of AF motor and zoom motor etc., and it is driven by front and back on optical axis by the drive signal of exporting from optical system drive division 7 by from the control signal of MPU3 is provided to driving mechanism 5.Aperture 6 is adjusted the light quantity that incides the subject image on the CCD2 by according to being driven in the drive signal that aperture drive division 8 produces based on the control signal from MPU3.
MPU3 is connected with the TG (Timing Generator) 9 that timing signal takes place, CCD2 is driven in the drive signal that V driver 10 (vertical direction driver) is generated by the timing signal that takes place according to TG9, outputing to analog portion 11 with subject image corresponding simulating photography signal.
MPU3 is connected with operation keys portion 12, TFT LCD monitor 13, photoflash lamp 14, DRAM15, MROM16 and video memory 17.
DRAM15 is the operation memory, video memory 17 is the image record memories that are made of various storage cards etc., send to the digital signal (image pickup signal) of MPU3 when temporarily being kept at the DRAM15 from CCD2, implement various image processing by MPU3, and after utilizing JPEG (Joint Photograph coding Experts Group) mode to be compressed coding, be recorded in the video memory 17 as view data.Video memory 17 is plug media freely such as SD card.
Be recorded in the view data in the video memory 17, read by MPU3 as required, additional etc. the processing through decompression, luminance signal and chrominance signal generates digital video signal or analog video signal, is shown by TFT LCD monitor 13.In TFT LCD monitor 13, the image of periodically being taken under logging mode is shown as straight-through figure (through image).
MROM16 is the program ROM that records necessary exercises program in the control of various piece of MPU3 and the data processing.In MROM16, the program AE data of the f-number (F) that the exposure value (EV) with suitable when also recording formation expression photography is corresponding and the program line chart of shutter speed combination etc.
MPU3 is according to the program line chart, carry out based on the AE control of the control of the gain of adjusting amplifier (AGC) as the gain of the openness of electric charge accumulation time of the CCD2 of shutter speed, aperture 5, simulation process portion 11.MPU3 is program according to the rules, drives AF (auto iris) control and AWB (Automatic white balance) control of condenser lens.MPU3 as required, controls the luminous and luminous quantity based on the photography fill-in light of photoflash lamp 14 when supressing the shooting operation of shutter key.
MPU3 in photography when supressing above-mentioned BS key under the logging mode, carry out sample image etc. demonstration and with the relevant control of setting of corresponding photography conditions by user-selected sample image (photography scene).When MPU3 supresses the BS key under regeneration mode, comprise the key operation of respective user and comprise processing described later in being presented at of sample image, and have the controlled function and the 1st of selection, the 2nd calibration function.
In video memory 17, as shown in Figure 2, in other zones different, preserve when the use of best scene camera function and employed sample image data 102 and photography conditions data 103 under the regeneration mode with the storage area of preserving the photographic image data of obtaining by photography (image file) 101.Sample image data 102 are a plurality of sample image data corresponding with various subject kinds (photography scene).
Fig. 4 is illustrated in the concept map of data structure that photography the time is recorded in the image file of image file 101 in the video memory 17, Exif form.The image file of Exif specification comprises: the Exif header, and whether it is used to discern is the file of Exif specification; Additional information of images, it is made of label information that comprises the various information relevant with view data and thumbnail image data; And original digital image data (packed data of photographs), it is by constituting as the initial data of thumbnail image data.Have the producer's recording section of having recorded and narrated producer's information alone and part in addition in the label information.In the image file that writes down by the photography of adopting best scene camera function, as shown in the figure, on producer's recording section, recorded and narrated the photography conditions numbering, on part in addition, together recorded and narrated general photographic parameter with fileinfo etc.In addition, on producer's recording section, also recorded and narrated producer's photographic parameter alone.
In above-mentioned digital camera 1, when the setting recording pattern and when setting regeneration mode, carry out following action, at first, the summary of the action under logging mode and the regeneration mode is described.
The key diagram of the summary of the action when Fig. 5 A is the photography of best scene camera function that has been illustrated in the use carried out under the logging mode.Digital camera 1, during being under logging mode shown straight-through Figure 20 1 in the TFT LCD monitor 13 photography holding state, behind the BS key that has been pressed, show that the scene that is made of above-mentioned a plurality of sample images etc. selects picture 202, for the user select, the desirable photography scene of decision.
Then, after selecting, determined any photography scene, return the photography holding state once more,, carry out photography action according to the photography conditions corresponding with selected photography scene (sample image) when behind the shutter key that has been pressed under this state.That is, carry out the photography under the regulation photograph mode, take subject, and carry out record as image file.
On the other hand, the key diagram of the summary of the action during Fig. 5 B to be the use of expression under the regeneration mode above-mentioned best regeneration function.Digital camera 1 under regeneration mode be in the reproduced state that document image (photographs) 211 arbitrarily is presented in the TFT LCD monitor 13 time, behind the BS key that has been pressed, demonstration is selected picture 202 by the scene that above-mentioned a plurality of sample images etc. constitute, for the user select, the desirable photography scene of decision.In addition, the scene that shows here select picture 202 with under logging mode along with the shown picture of the operation of BS key is identical.
Then, after having selected, having determined any photography scene, according to the corresponding photography conditions of photography scene (sample image) that is determined, image quality to the document image in the regeneration is proofreaied and correct, promptly, carry out proofreading and correct, and the image after this correction (hereinafter referred to as correcting image) 212 temporarily is presented in the TFT LCD monitor 13 based on the image quality of regulation regeneration mode.And, behind the shutter key that has been pressed under this state, the correcting image in showing 212 is done to become the new image file different with document image, and record.
Fig. 6 is illustrated under the regeneration mode, selected arbitrarily document image by the user after, and the flow chart of the contents processing of carrying out by MPU3 relevant with embodiments of the invention.
MPU3 is when having selected arbitrarily document image, from video memory 17, read the packed data (image file) 101 of selected document image (photographs), its decompress(ion) is contractd be deployed among the DRAM15 after, show (step S1) in TFT LCD monitor 13.Then, MPU3 judges whether the user has operated the BS key, if do not press BS key ("No" among the step S2), then returns step S1, continues displayed record image 211 (with reference to Fig. 5 b).
On the other hand, if supress BS key ("Yes" among the step S2), then read the part (photography conditions numbering and photography conditions name) of the sample image data 102 that are stored in the video memory 17 and photography conditions data 103, select the above-mentioned scene that constitutes by these picture 202 (with reference to Fig. 5 B) to be presented at (step S3) in the TFT LCD monitor 13, impel the user to operate, select desirable photography scene (sample image) by specified key.
In the selection decision operation back ("Yes" among the step S4) of having carried out the photography scene, read be attached to demonstration in document image 211 in the corresponding any photographic parameter shown in Figure 3 of photography conditions numbering, promptly, the photographic parameter of when photography, using (step S5), according to the photographic parameter of reading, document image 211 (view data in the DRAM15) is implemented the inverse transformation treatment for correcting, and it is standard picture quality (step S6) that its image quality is proofreaied and correct.
Promptly, by carrying out the image processing with the opposite content of image processing of the time carrying out in photography, be the image quality correction of the document image 211 in showing, be equivalent to the time not carry out situation according to the image processing of above-mentioned photographic parameter in photography, that is, used standard picture quality under the situation of photography of best scene camera function.More particularly, for example the time used under the situation of the photographic parameter corresponding with photography conditions shown in Figure 3 numbering " 2 ", photography conditions name " landscape photography " in photography, owing to the time carried out acutance is made as "+2 " in photography, saturation be made as the image processing of "+2 ", so carry out acutance is made as the image processing that " 2 ", saturation are made as " 2 " here.
And, read and the corresponding photographic parameter of selecting scene selection picture 202 by the user before (step S7) of photography scene from video memory 17, according to this photographic parameter, as described above correction is proofreaied and correct (step S8) again for the image of standard picture quality.That is,, the photographic parameter of the new photography scene of selecting as image quality correcting condition, is implemented the image processing corresponding with its content to being the image of standard picture quality state.More particularly, be under the situation that " makes " corresponding parameters green distinct with photography conditions shown in Figure 3 numbering " 6 ", photography conditions name for example at the new photographic parameter of selecting, carry out color contrast to " green ", and carry out acutance is made as "+2 ", saturation is made as the image processing of "+2 ".
Then, the image of this moment as final correcting image 212 (with reference to Fig. 5 B), and is presented at (step S9) in the TFT LCD monitor 13.After having shown correcting image 212, judge whether to have indicated the correction of pressing to determine (having indicated correction change) at step S10 based on the specified key operation based on shutter key, be judged as under the situation of having indicated decision, correcting image 212 as with proofread and correct before the different new image file of document image 211, record (step S11) in the video memory 17.In addition, be judged as under the situation of having carried out indicating based on the change of specified key operation at step S10, return step S3, displayed scene is selected picture 202 in TFT LCD monitor 13, makes the user select desirable photography scene (sample image) once more.Afterwards, above-mentioned repeatedly action.
As mentioned above, in the digital camera 1 of present embodiment, the document image 211 (photographs) of having photographed can be corrected into the image of the same atmosphere of situation of photographing under the photograph mode that has with the scene of promptly photographing in corresponding subject kind.And, at this moment,, after pressing the BS key, having shown that scene is selected picture 202, only need select the operation of desirable photography scene to get final product, thereby anyone can both easily carry out the correction operation of document image as shown in Figure 5 for the user.In addition, because its order is with identical in the situation that adopts best scene photograph mode to photograph, so use very facility.
And, even the photography that the photographs of calibration object is to use best scene camera function to carry out, when photography, used photography conditions according to specific photography scene (subject kind), but owing to be after the image quality of document image is temporarily reverted to the standard picture quality, carry out correction, so can be corrected into the image quality that correspondence is different from the photography scene in when photography to the image quality of document image without barrier based on the photography conditions corresponding with the photography scene (subject kind) of new selection.That is,, can give and the same atmosphere of situation of under the photograph mode that is different from when photographing, photographing for the photographs of photography under certain pattern of using the specific photography conditions corresponding and record with the subject kind.
Its result, for example after when photography and photography, even the user has changed intention, also can be corresponding, thus the user can obtain to have the photographs of satisfied atmosphere all the time.
Here, for convenience of explanation, only illustrated and supposed that the document image that becomes calibration object has been to use the situation of the image of best scene camera function photography, but in fact, the document image of calibration object also there is the situation of not using best scene camera function photography.Therefore, when reality enforcement was of the present invention, MPU3 carried out following processing.
For example after above-mentioned step S4, the data of the above-mentioned producer recording section by confirming image file, whether the document image 211 that is used for judging the demonstration that becomes calibration object is to use the treatment of picture of best scene camera function photography, in its judged result is under the situation of "Yes", directly carry out the inverse transformation treatment for correcting of above-mentioned steps S5, and be under the situation of "No" in above-mentioned judged result, skip step S5 thereafter, S6, enter the processing of step S7, at step S8, carry out the treatment for correcting of the document image 211 in showing as object.
Thus, even when the document image of calibration object is not to use the image of best scene camera function photography, also can become to have image with the same atmosphere of the situation of under the photograph mode of corresponding specific shot body kind (photography scene), photographing to this image rectification.
In addition, in the present embodiment, when carrying out the inverse transformation treatment for correcting of step S6, though can photography conditions numbering (with reference to Fig. 4) in producer's recording section of image file be judged when the photography selected photography scene, applied photographic parameter (photography conditions) when photographing according to recording and narrating, also can carry out following processing.
For example, because employed photographic parameter when having recorded and narrated photography in producer's recording section is as described above handled so also can carry out above-mentioned inverse transformation according to this photographic parameter.In this case, for example, possessing the best scene camera function same with the digital camera 1 of present embodiment, in other digital cameras of best regeneration function, installation stores the video memory 17 of the image file of the digital camera photography of using present embodiment, and when utilizing best regeneration function, be kept at the sample image data 102 in the video memory 17 and the content of photography conditions data 103, the digital camera of present embodiment is different with other digital cameras, promptly, part or all of selectable photography scene when having photography, the inconsistent situation of possibility between two digital cameras, even but in this case, as long as carry out above-mentioned inverse transformation treatment for correcting, the correction after can photographing without barrier according to the photographic parameter of being recorded and narrated in producer's recording section.
In addition, in the present embodiment, illustrated as described above after step S6 has carried out the inverse transformation treatment for correcting, further carry out treatment for correcting again at step S8, that is, carry out the image processing (image quality adjustment processing) in 2 different stages, obtain the situation of final correcting image 12 thus, but also can replace the image processing in 2 above-mentioned stages, and carry out following processing.Promptly, carry out the photographic parameter used when being equivalent to photograph and the image processing of the content of the photographic parameter (difference condition) of the difference of the corresponding photographic parameter of selected photography scene during with regeneration, promptly summarized the treatment for correcting of the image processing in above-mentioned 2 stages.
More particularly, for example for the time having selected photography conditions to be numbered " 2 " in photography, the document image of the photography scene of photography conditions " landscape photography " by name, selected photography conditions to be numbered under the situation of photography scene of " 6 ", photography conditions " making green distinct " by name in when regeneration (timing), also can only carry out color contrast " green ".In this case, also can obtain the calibration result same with present embodiment.
In addition, in the above description, illustrated corresponding and the photography conditions of decision with selectable each photography scene under logging mode, be to constitute by implementing the control content that specify image capture realized when the photography like that by as shown in Figure 3 " color contrast ", " acutance ", " saturation " etc., i.e. situation about constituting by the image quality regularization condition among the present invention, but according to the photography scene, sometimes in the photography conditions corresponding, comprise the control content that realized by the action of the photography beyond the image processing, be mechanical condition with it.
As mechanical condition, for example be the relevant photography conditions of control content with photographic optical systems such as " focusing ", " apertures "; Adjust the relevant photography conditions of control content of the imaging circuit systems such as " EV compensation " that the gain of amplifier (AGC) realizes with the gain of " shutter speed " that realize by the electric charge accumulation time of control CCD2, electric charge accumulation time by control CCD2 and analog portion 11; With the photography conditions of realizing by the component part beyond control photographic optical systems such as " photoflash lamp are luminous " and the imaging circuit system.In addition, for the photography conditions more specifically that comprises above-mentioned mechanical condition (control content of a plurality of photographic parameters), will be explained below.In addition, in photography conditions, comprise under the situation of mechanical condition, wish to carry out following processing.
At first, as present embodiment, obtaining in the formation of final correcting image 212 with the image processing in different 2 stages of treatment for correcting (step S8) again, carry out following processing by inverse transformation treatment for correcting (step S6).That is, the photography conditions when photography comprises under the situation of above-mentioned mechanical condition, wishes the contents processing of additional corresponding above-mentioned mechanical condition in the contents processing of above-mentioned inverse transformation treatment for correcting.For example, when carrying out the inverse transformation treatment for correcting, on the basis of above-mentioned processing, carry out and can obtain and image processing based on the opposite content of image processing of the approaching effect of the effect of above-mentioned mechanical condition.In this case, the image quality of document image can be corrected into the standard picture quality of more approaching reality.
In addition, in this case, when carrying out the inverse transformation treatment for correcting, become the standard picture quality of correction target, also can be to be equivalent to the time only carry out image quality under the situation of AE control in photography, that is, be equivalent to used with specific shot body kind irrespectively, only according to the image quality under the situation of the photography conditions of the setting state of subject.In addition, also can be to be equivalent to have used the set point of aperture and shutter speed is set at image quality under the situation of the photography conditions of the state of the setting of hypothesis in advance as benchmark, that is, be equivalent to have used with specific shot body kind irrespectively, image quality under the situation of the photography conditions that is predetermined.
In addition, the photography conditions (image quality correcting condition) of (timing) comprises under the situation of above-mentioned mechanical condition when regeneration, wishes that again the contents processing of treatment for correcting comprises and the corresponding contents processing of above-mentioned mechanical condition.For example, when carrying out again treatment for correcting, also carry out obtaining with based on the image processing of the approaching effect of the effect of above-mentioned mechanical condition.In this case, can make the image quality of correction of a final proof image, more approach when reality is photographed, to have used the image quality under the situation of photography conditions of photography scene specified when regeneration.
And, according to the inverse transformation treatment for correcting of above-mentioned mechanical condition with also can comprise for example image recognition processing and image recognition processing in the treatment for correcting again.In this case, can carry out separating of specific shot body (subject that waits based on personage) and background, carry out different image quality adjustment respectively.
In addition, as previously described, even constitute different with present embodiment, with the inverse transformation treatment for correcting with in the mode that the treatment for correcting unification is carried out again, comprise under the situation of above-mentioned mechanical condition at photography conditions (image quality correcting condition), as long as summarizing the inverse transformation treatment for correcting and comprising the processing corresponding again during the treatment for correcting of treatment for correcting with mechanical condition, can make the image quality of correction of a final proof image, more approach when reality is photographed, to have used the image quality under the situation of photography conditions of photography scene specified when regeneration.
Certainly, in this case, because the combination of the photography conditions (image quality correcting condition) of (timing) when photography conditions during according to photography and regeneration, the content difference of treatment for correcting, so, the difference condition of a plurality of kinds of the combination of the photography conditions according to when photography and regeneration the time is stored in video memory 17 grades in advance, carrying out timing, as long as read when photographing aptly and the corresponding difference condition of combination of the photography conditions during regeneration, carry out getting final product according to the treatment for correcting of this difference condition.
Contents processing during here, to the concrete photography conditions under the situation that comprises mechanical condition recited above, its corresponding photography and the content of the treatment for correcting (image quality adjustment processing) of the document image corresponding with it described.Fig. 7 is the figure that is illustrated in the example of other photography conditions tables Tn under the situation that comprises above-mentioned mechanical condition in each photography conditions corresponding with utilizing the next selectable photography scene of best scene camera function, is the figure corresponding with Fig. 3.In this photography conditions table Tn, photographic parameter is made of the control project of " focusing ", " aperture ", " shutter speed ", " EV compensation ", " white balance ", " photoflash lamp is luminous ", " saturation ".In addition, in each photographic parameter (control project), be set with " night scene ", " personage in night ", " personage and night scene ", " flower ", " backlight personage " and wait the corresponding control content of each photography conditions name (photography scene).
In addition, " white balance " in the above-mentioned photographic parameter is though be the photography conditions of similarly realizing by specify image capture with present embodiment, but it is different with present embodiment for example to adjust amplifier (AGC) in the gain of above-mentioned simulation process portion 11, it constitutes and can adjust respectively under the situation of image pickup signal gain by each look of RGB, promptly, in the balance adjustment of adjusting Amplifier Gain by gain, in controlled mode, " white balance " also becomes the photography conditions (mechanical condition) that the control by the imaging circuit system realizes.
Below, the contents processing when photographing and describe for the content of the treatment for correcting (image quality adjustment processing) of the document image corresponding with it according to each photography conditions shown in Figure 7.
The photography conditions of photography conditions " night scene " by name is to be used to carry out based on landscape (distant view), and keeps the condition of the night photography of atmosphere at night.When photographing according to above-mentioned photography conditions, " focusing " is set at narrow bright spot (spot) the AF pattern of measurement range of AF evaluation of estimate, and, owing to suppose the deficiency in light quantity at night, the light of photoflash lamp can not shine distant view, so for the lightness of guaranteeing standard state to the range-independence ground of subject, " aperture ", " shutter speed " are set at automatically (according to the set point of AE control).Simultaneously, in order to ensure the atmosphere at night, with+the 2EV degree is that limit compensates (correction) EV value, photographs.
Therefore, for and in the treatment for correcting of the document image when having selected " night scene " as the photography scene, for example, obtain all average lightnesses of image, and all lightnesses of correcting image without exception, so that this average lightness reaches setting, obtain to have and the image of when photographing, having selected the same atmosphere of situation of above-mentioned photography scene.
The photography conditions of photography conditions name " personage at night " is to be used to carry out the condition for the night photography of main subject with personage's (close shot).When photographing according to above-mentioned photography conditions, " focusing " is set at bright spot AF pattern, and owing to do not need to shoot bright landscape (distant view), so it is luminous that " photoflash lamp is luminous " is set at pressure, and " aperture ", " shutter speed " are set at automatically, only shoot bright personage (close shot).Simultaneously, in order to keep the atmosphere at night, exceed with the 1EV degree and to improve (correction) EV value, and " saturation " improved one-level, photograph.
Therefore, to as the photography scene and the document image when having selected " personage at night " carries out in the treatment for correcting, if for example image is all carried out gamma correction, then since flash light irradiation less than background parts also be corrected, so in order to reappear the photography state with identical atmosphere of when photography, detect the profile of personage's part by image processing, by this personage part is optionally carried out gamma correction, thereby can obtain to have the image of the atmosphere identical with the situation of when photographing, having selected above-mentioned photography scene.
The photography conditions of photography conditions " personage and night scene " by name is that being used to carry out with personage's (close shot) and landscape (distant view) both sides is the condition of the night photography of main subject.When photographing according to above-mentioned photography conditions, by " focusing " is set at bright spot AF pattern, it is luminous that " photoflash lamp is luminous " is set at pressure, guarantees the lightness of personage's (close shot).Simultaneously, about the lightness of landscape (distant view), if, then personage's (close shot) is constituted dual lightness and proofreaies and correct because " aperture " is set at automatically, so, by " shutter speed " is set at the brightness of guaranteeing landscape automatically.
Therefore, to as the photography scene and the document image when having selected " personage and night scene " carries out in the treatment for correcting, by carrying out for example in all brightness histograms of image (histogram) distribute, make the conversion of expanding such view data between minimum brightness part and the maximum brightness part, to guarantee contrast, can obtain to have the image of the atmosphere identical with the situation of when photographing, having selected above-mentioned photography scene.
Photography conditions corresponding with photography conditions by name " flower " is to be used for the condition of photographing with Hua Weizhu.When photographing according to this photography conditions, make background flatten for focus being focused on flower, " focusing " be set at focusing range several centimetres with interior microspur (macro) pattern, and handle " aperture " is set at below the F3, to reduce the depth of field being shot.And " saturation " improved one-level.
Therefore,, for example detect the profile of flower part, the background parts beyond the flower is implemented the desalination processing by image processing to as the photography scene and the document image when having selected " flower " carries out in the treatment for correcting.In addition, improve saturation, can obtain to have the image of the atmosphere identical with the situation of when photographing, having selected above-mentioned photography scene by utilizing image processing.
The photography conditions that is called " backlight personage " with photography conditions is that the personage who is used to carry out with the backlight state is the condition of the photography of main subject.When photographing according to above-mentioned photography conditions, " focusing " is set at the wide multizone pattern of measurement range of AF evaluation of estimate, " photoflash lamp is luminous " is set at forces luminously, be the EV compensation making+3EV, and " saturation " improved one-level, photograph.
Therefore, to as the photography scene and the document image when having selected " backlight personage " carries out in the treatment for correcting, for example, by utilizing image processing to detect the profile of personage's part, this personage's part selectivity is carried out gamma correction, obtain to have the image of the atmosphere identical with the situation of when photographing, having selected above-mentioned photography scene.
In addition, in the present embodiment, at the timing that carries out document image, make the selection operation of user by the scene of photographing (sample image), from a plurality of correction modes of corresponding a plurality of subject kinds respectively, select desirable correction mode in advance, but be arbitrarily about the method when making the user select desirable correction mode.But, for situation about as present embodiment, being applied in the digital camera with best scene camera function, because as long as select correction mode by the selection operation of photography scene (sample image), can carry out the correction operation of sensation same when using best scene camera function to photograph as described above, therefore, this point is favourable.
And, in the present embodiment, under regeneration mode reality arbitrarily document image during, according to user's key operation and displayed scene is selected picture 202, simultaneously the document image in showing is carried out treatment for correcting of the present invention as object, but also can carry out following processing.
For example, also can be when being in arbitrary patterns, key operation according to the user comes displayed scene to select picture 202, after the user has selected desirable photography scene (correction mode), by the arbitrary method such as selection operation of filename, the user is selected become one or more document images based on the treatment for correcting object of the photography conditions corresponding with selected photography scene.Then, selected one or more document images are carried out above-mentioned treatment for correcting.
In this case, because can be to a plurality of document images according to same photography conditions, the unified treatment for correcting of carrying out, so, for example, when giving same effect (atmosphere), can alleviate correction operation to several document images that write down same subject repeatedly being photographed by changing frame.
In addition, in the present embodiment, be to use best scene camera function to be photographed and the situation of the photographs that is recorded is illustrated to the photographs of calibration object.But the photographs of calibration object is so long as used the image of the photography conditions corresponding with specific shot body kind when photography, it also can be the image that for example in the digital camera of the structure that constitutes the direct selection photograph mode corresponding, is write down by photography with the kind of subject, that is, also can be the image of when photography, having used the photography conditions corresponding with specific shot body kind.In addition, the photographs of calibration object also can be to utilize digital camera device in addition, for example the image of other device photographies such as digital camera, the mobile telephone terminal that has possessed camera function and PDA.
In addition, the present invention also can with the having or not irrespectively, be applied in other devices that comprise personal computer beyond the digital camera of camera function.And, the invention is not restricted to still image, the dynamic image of having used the photography conditions corresponding with specific shot body kind photography the time carries out under the situation of its image quality adjustment as calibration object, also is effective.
In addition; though the computer program of the information processing system of the preferred embodiments of the present invention; be stored in the memory (for example ROM etc.) of personal computer and digital camera; but also can be stored in this handling procedure in the medium of embodied on computer readable, and manufacturing of this single program, sale etc. should be protected.In this case, can realize method by form with the computer-readable medium that stored this computer program with this program of patent protection.
Claims (10)
1. image correction apparatus has:
Select control unit, it makes the user select desirable correction mode from a plurality of correction modes of corresponding a plurality of subject kinds respectively;
The 1st correcting unit, it is to being proofreaied and correct by photography and the image quality that is recorded in the image in the recording medium under the regulation photograph mode of having used the photography conditions corresponding with specific shot body kind, used standard picture quality under the situation of photography conditions of standard during this image so that this image quality becomes in photography, the photography conditions of this standard is the photography conditions of having removed from the photography conditions of corresponding afore mentioned rules photograph mode the distinctive condition of above-mentioned specific shot body kind; And,
The 2nd correcting unit, it is the image quality of the image after the standard picture quality to being proofreaied and correct by the 1st correcting unit, according to the image quality correcting condition corresponding with the correction mode that the user is selected by above-mentioned selection control unit, proofreaies and correct.
2. image correction apparatus according to claim 1 is characterized in that, above-mentioned standard picture quality be photography the time used with above-mentioned specific shot body kind irrespectively, image quality under the situation of the photography conditions set according to the exposure status of subject.
3. image correction apparatus according to claim 1, it is characterized in that, above-mentioned standard picture quality be when photography and above-mentioned specific shot body kind irrespectively, used the image quality under the situation of the photography conditions that aperture and shutter speed is set at setting.
4. image correction apparatus according to claim 1, it is characterized in that, above-mentioned the 1st correcting unit is implemented image processing to above-mentioned image, and this image processing comprises: with the image processing opposite contents processing corresponding that photography conditions comprised of corresponding afore mentioned rules photograph mode to the distinctive specified image quality of subject kind regularization condition.
5. image correction apparatus according to claim 1 is characterized in that, above-mentioned the 1st correcting unit is implemented image processing to above-mentioned image, and this image processing comprises:
With with the image processing opposite contents processing corresponding that photography conditions comprised of corresponding afore mentioned rules photograph mode to the distinctive specified image quality of subject kind regularization condition; And,
The contents processing corresponding, above-mentioned mechanical condition with mechanical condition be corresponding afore mentioned rules photograph mode photography conditions comprised to the distinctive mechanical condition of subject kind and also be the mechanical condition that the action by photographic optical system beyond the image processing or photography Circuits System realizes.
6. image correction apparatus according to claim 1 is characterized in that having:
The sample image memory cell, it stores a plurality of sample images corresponding with a plurality of subject kinds; And,
Display unit, its demonstration are stored in the sample image in this sample image memory cell,
Above-mentioned selection control unit, the selection operation by to any sample image of being presented at above-mentioned display unit makes the user select desirable correction mode.
7. image correction apparatus according to claim 1, it is characterized in that, above-mentioned the 1st correcting unit, the regulation photography conditions information subsidiary, the photography conditions of judgement applied corresponding afore mentioned rules photograph mode when this photographs of photography according to above-mentioned photographs.
8. image correction apparatus according to claim 1 is characterized in that, is set at optionally to set the camera apparatus of different a plurality of photograph modes mutually of applied photography conditions when photographing.
9. image correction apparatus according to claim 1, it is characterized in that, above-mentioned the 2nd correcting unit is implemented image processing to the photographs after being proofreaied and correct by above-mentioned the 1st correcting unit, this image processing comprises the contents processing corresponding with mechanical condition, above-mentioned mechanical condition be above-mentioned image quality correcting condition photography conditions comprised to the distinctive mechanical condition of subject kind and also be the mechanical condition that the action by photographic optical system beyond the image processing or photography Circuits System realizes.
10. a method for correcting image comprises the steps:
Make the user from a plurality of correction modes of corresponding a plurality of subject kinds respectively, select desirable correction mode;
To under the photograph mode of having used the photography conditions corresponding, being proofreaied and correct by photography and the image quality that is recorded in the image in the recording medium with specific shot body kind, used standard picture quality under the situation of photography conditions of standard during this image so that this image quality becomes in photography, the photography conditions of this standard is the photography conditions of having removed from the photography conditions corresponding with the afore mentioned rules photograph mode the distinctive condition of above-mentioned specific shot body kind; And,
To being corrected as the image quality of the image after the standard picture quality,, proofread and correct again according to the image quality correcting condition corresponding with the correction mode that the user is selected.
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| CN101895683B (en) * | 2009-05-22 | 2013-11-06 | 奥林巴斯映像株式会社 | Photographing condition control device and its control method, camera and picture quality control device |
| CN101895684B (en) * | 2009-05-22 | 2012-11-28 | 奥林巴斯映像株式会社 | Photographing condition control device, camera and photographing condition control method |
| JP5750692B2 (en) * | 2011-02-03 | 2015-07-22 | オリンパス株式会社 | Imaging apparatus, imaging program, and imaging method |
| JP2013162436A (en) * | 2012-02-08 | 2013-08-19 | Sony Corp | Image processing apparatus, image processing method, computer program, and compute-readable recording medium |
| KR102249528B1 (en) * | 2014-04-01 | 2021-05-11 | 삼성메디슨 주식회사 | Method, apparatus and system for adjusting brightness of ultrasound image by using prestored gradation data set and images |
| CN108010108A (en) * | 2017-12-02 | 2018-05-08 | 天津大行道动漫文化发展有限公司 | A kind of cartoon figure's background moves inspection and processing method |
| CN114697471A (en) * | 2020-12-29 | 2022-07-01 | 海能达通信股份有限公司 | Video processing method and device |
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| JP3887060B2 (en) * | 1997-04-09 | 2007-02-28 | ペンタックス株式会社 | Image correction information recording apparatus and image restoration processing apparatus for electronic still camera |
| JP2003060980A (en) * | 2001-08-21 | 2003-02-28 | Olympus Optical Co Ltd | Image processing system |
| JP4328956B2 (en) * | 2004-01-07 | 2009-09-09 | 富士フイルム株式会社 | Method and apparatus for controlling digital camera |
| JP2006146730A (en) * | 2004-11-24 | 2006-06-08 | Casio Comput Co Ltd | Image retrieval device, image retrieval method and image retrieval device |
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| CN101155262A (en) | 2008-04-02 |
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