CN105991979B - image data generating method and device - Google Patents
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Abstract
The invention provides an image data generation method and device. Image data forming an original image is obtained by the photosensitive element. Based on a plurality of brightness values included in each color light in each display pixel in the original image, a maximum brightness distribution range corresponding to each color light sensed by the photosensitive unit corresponding to each display pixel is obtained. And summing the brightness values in the maximum brightness distribution range corresponding to each color light of each photosensitive unit to obtain the summed brightness value of each color light of each photosensitive unit. And setting the summed brightness value of the color lights of each photosensitive unit as the pixel data of the display pixel corresponding to the adjusted image.
Description
Technical field
The invention relates to a kind of image procossing mechanism, and in particular to a kind of view data production method and dress
Put.
Background technology
With the development of science and technology, digital camera turns into electronic product indispensable in life at present.Digital camera is
Light is converted into charge signal using photo-sensitive cell.Due to the photo-sensitive cell of digital camera be to light by after camera lens into
As carry out sampling action, if therefore the object to be sampled have it is intensive and repeat figure or lines pattern characteristics when,
And the spatial resolution (Spatial Resolution) of photo-sensitive cell it is just insufficient when, just can not effectively parse the target of sampling
Thing, therefore the image fault phenomenons such as the interference fringe that original naked eyes are not found can be seen in caused image.
Camera manufactory can set a piece of low pass filter (Low-Pass in the camera to suppress this problem
Filter, abbreviation LPF), stop that the too high light of spatial frequency (spatial frequency) enters by low pass filter
Photo-sensitive cell, to reduce the generation of interference fringe.But due to low pass filter can detract image detail, therefore image can be reduced
Definition.
The content of the invention
The present invention provides a kind of view data production method and device, can reduce the shade phenomenon in original image.
The view data production method of the present invention, it obtains an original image, wherein photo-sensitive cell by photo-sensitive cell
Including multiple photosensitive units, each photosensitive unit has multiple photosensitive pixels, and is sensed by each photosensitive unit
These brightness values form a display pixel in original image.The above method comprises the following steps.Obtain each photosensitive list
The corresponding high-high brightness distribution in original image of member.By in each self-corresponding high-high brightness distribution of multiple coloured light
These brightness values add up, use and obtain on each photosensitive unit brightness value after the totalling of white light.By each of each photosensitive unit
Brightness value is set as the pixel data of display pixel corresponding to image after adjustment after the totalling of coloured light.
In one embodiment of this invention, above-mentioned coloured light includes red light, green light and blue light to the present invention.Each sense
Light unit includes N1 × N2 photosensitive pixel, and N1 and N2 is positive integer.It is maximum corresponding to the white light of each photosensitive unit obtaining
The step of Luminance Distribution scope, includes：In N1 photosensitive pixel row of each photosensitive unit, it is photosensitive to take out brightness value highest M
Pixel column, and set high-high brightness distribution as above-mentioned M photosensitive pixel row, wherein above-mentioned M photosensitive pixel row include M ×
N2 photosensitive pixel.Here, when N1 is 3 multiple, M is set as N1/3；When N1 not be 3 multiple when, set M as not less than
N1/3 smallest positive integral x sets M as x+1.
In one embodiment of this invention, the above-mentioned high-high brightness distribution that sets is above-mentioned M light-sensitive image to the present invention
The step of plain row includes：White light is directed to respectively, in each photosensitive unit, by the added luminance of each photosensitive pixel row；And
It is that M photosensitive pixel row of highest is set as high-high brightness distribution by the value after added luminance.
In one embodiment of this invention, the above-mentioned high-high brightness distribution that sets is above-mentioned M light-sensitive image to the present invention
The step of plain row includes：White light is directed to respectively, in each photosensitive unit, will be put down again after the added luminance of each photosensitive pixel row
；And value average again after added luminance is set as high-high brightness distribution for M photosensitive pixel row of highest.
In one embodiment of this invention, the above-mentioned high-high brightness distribution that sets is above-mentioned M light-sensitive image to the present invention
The step of plain row includes：White light is directed to respectively, in each photosensitive unit, judges whether have more than half in each photosensitive pixel row
Brightness value be more than threshold value；M photosensitive pixel row for being more than threshold value more than half brightness value is set as high-high brightness point
Cloth scope.
The view data generation device of the present invention includes photo-sensitive cell, processing unit and memory cell.Photo-sensitive cell bag
Include multiple photosensitive units, each photosensitive unit has multiple photosensitive pixels, and the multiple brightness sensed by each photosensitive unit
Value forms a display pixel in original image.Memory cell includes multiple modules.Processing unit is coupled to photo-sensitive cell,
And after obtaining by photo-sensitive cell and to form the view data of original image, above-mentioned module is performed to scheme after producing adjustment
Picture.Above-mentioned module includes brightness detection module, brightness adds up module and image generating module.Brightness detection module obtains each sense
Light unit corresponding high-high brightness distribution in original image.Brightness adds up module by high-high brightness corresponding to white light point
Brightness value in the range of cloth adds up, and uses brightness value after the totalling for obtaining the white light on each photosensitive unit.Image generating module
Brightness value after the totalling of the white light of each photosensitive unit is set as to the pixel data of display pixel corresponding to image after adjustment.
The moon such as possessed interference fringe in original image can be greatly decreased based on image after above-mentioned, of the invention adjustment
Shadow phenomenon, the definition of image after lifting adjustment, use assistance follow-up various image procossings, graphical analysis.
For features described above of the invention and advantage can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make
Carefully it is described as follows.
Brief description of the drawings
Fig. 1 is the block diagram of the view data generation device according to one embodiment of the invention；
Fig. 2 is the schematic diagram of the photo-sensitive cell according to one embodiment of the invention；
Fig. 3 is the block diagram of the memory cell according to one embodiment of the invention；
Fig. 4 is the flow chart of the view data production method according to one embodiment of the invention；
Fig. 5 A, Fig. 5 B, Fig. 5 C are the high-high brightness distribution models for single photosensitive unit according to one embodiment of the invention
The schematic diagram enclosed.
Description of reference numerals：
100：View data generation device；
110：Photo-sensitive cell；
120：Processing unit；
130：Memory cell；
301：Brightness detection module
303：Brightness adds up module；
305：Image generating module；
501、502、503：High-high brightness distribution；
SP：Photosensitive pixel；
U、U1：Photosensitive unit；
S410、S415、S420：Each step of view data production method.
Embodiment
Fig. 1 is the block diagram of the view data generation device according to one embodiment of the invention.It refer to Fig. 1, view data
Generation device 100 is, for example, the electronic installation that digital camera, DV, smart mobile phone etc. have capture function.Here, figure
As data generating apparatus 100 includes photo-sensitive cell 110, processing unit 120 and memory cell 130.Processing unit 120 is coupled to
Photo-sensitive cell 110 and memory cell 130.Caught using photo-sensitive cell 110 by the light of camera lens (not shown) and by light
Line is converted into charge signal.And then charge signal received by processing unit 120 to be sampled and biometrics and obtain digital
The view data of change, view data is stored into memory cell 130 afterwards.
Photo-sensitive cell 110 is, for example, charge coupled cell (Charge coupled device, abbreviation CCD) or complementary
MOS transistor (Complementary metal oxide semiconductor transistors, referred to as
CMOS).Processing unit 120 is, for example, CPU (Central Processing Unit, abbreviation CPU), microprocessor
Or digital signal processor (digital signal processor, abbreviation DSP) etc. (microprocessor).Memory cell
130 be, for example, nonvolatile memory (Non-volatile memory), random access memory (Random Access
Memory, abbreviation RAM) or hard disk etc..
For example, Fig. 2 is the schematic diagram of the photo-sensitive cell according to one embodiment of the invention.Here, photo-sensitive cell 110 wraps
Include multiple photosensitive unit U (that is, the scope in Fig. 2 shown by heavy black).Each photosensitive unit U includes N1 × N2 light-sensitive image
Plain SP, it can refer to the enlarged diagram of broken circle inframe in Fig. 2.And a photosensitive unit U can be corresponded to one of original image
Display pixel.Above-mentioned N1 and N2 is positive integer, and N1 can be equal to N2, or N1 is not equal to N2.For convenience of explanation, in this implementation
Photo-sensitive cell 110 is set as including 5 × 6 groups of photosensitive unit U in example, and a photosensitive unit U includes 5 × 5 photosensitive pixels
SP。
In the present embodiment, a photosensitive pixel SP can detect the Wavelength strength of three kinds of coloured light of red, green, blue.Namely
Say, each display pixel of the original image of the present embodiment is 5 × 5 groups sensed by 5 × 5 photosensitive pixel SP
RGB brightness values are formed.
And the present embodiment is realized with program code.For example, multiple program code pieces are stored with memory cell 130
Section, said procedure code snippet after being installed, can be performed by processing unit 120.For example, memory cell 130 include it is more
Individual module, multiple functions are performed respectively by these modules, and each module is made up of one or more code segments.
Fig. 3 is the block diagram of the memory cell according to one embodiment of the invention.Fig. 3 is refer to, memory cell 130 includes bright
Spend detection module 301, brightness adds up module 303 and image generating module 305.Brightness detection module 301 to based on often
Multiple brightness values included by one photosensitive unit U white light, to obtain corresponding to each photosensitive unit U white light
High-high brightness distribution.Brightness adds up module 303 high-high brightness corresponding to each photosensitive unit U white light is distributed into model
Multiple brightness values in enclosing add up, and use brightness value after the totalling for the white light for obtaining each photosensitive unit U.Image generating module
305 to based on after totalling brightness value brightness add up module 303 to by the brightness value of above-mentioned high-high brightness distribution add up.
Fig. 4 is the flow chart of the view data production method according to one embodiment of the invention.Fig. 1~Fig. 4 is refer to, at this
In embodiment, processing unit 120 to form the view data of original image by photo-sensitive cell 110 to obtain.And photo-sensitive cell 110
Include the brightness value of multiple coloured light in the view data sensed.And above-mentioned coloured light includes red light, green light and indigo plant
Coloured light.
In step S410, processing unit 120 obtains each photosensitive unit U by brightness detection module 301 in original graph
The corresponding high-high brightness distribution as in.That is, brightness detection module 301 can be in each display pixel of original image
In, based on multiple brightness values included by each coloured light, to obtain high-high brightness corresponding to each photosensitive unit U white light point
Cloth scope.
Specifically, brightness detection module 301 can take out bright in each photosensitive unit U N1 photosensitive pixel row
M photosensitive pixel row of angle value highest, and then high-high brightness distribution is set as M photosensitive pixel row, i.e. M × N2 sense
Light pixel SP.When N1 is 3 multiple, M is set as N1/3, when N1 is not 3 multiple, sets M as not less than N1/3 most
Small integer x sets M as x+1.
For example, when N1 is 3 multiple, for 6 × 6 photosensitive pixel SP, M is set as 2.That is, high-high brightness
Distribution is set as 2 × 6 photosensitive pixel SP.In addition, when N1 is not 3 multiple, for 5 × 5 photosensitive pixel SP,
M is set as the smallest positive integral x not less than 5/3, i.e., 2；Or M is set as 3.That is, high-high brightness distribution is set as 2 × 5
Photosensitive pixel SP or 3 × 5 photosensitive pixel SP.
Brightness detection module 301 can detect the high-high brightness distribution of each photosensitive unit for each coloured light respectively.
For example, by taking red light as an example, brightness detection module 301 first takes out the N1 for the red light that one of photosensitive unit U is sensed
× N2 brightness value, afterwards, most bright M row photosensitive pixel rows are found out based on these brightness values.And green light and blue light
By that analogy.
And finding out most bright M row photosensitive pixel rows has following several practices.Brightness detection module 301 can be respectively for every
A kind of coloured light, in each photosensitive unit U, by the added luminance of each photosensitive pixel row, and by these added luminances
Value afterwards is that M photosensitive pixel row of highest is set as high-high brightness distribution.Or brightness detection module 301 can divide
Safety pin is to each coloured light, will be average again after the added luminance of each photosensitive pixel row in each photosensitive unit U, and
Value average again is that M photosensitive pixel row of highest is set as high-high brightness distribution after will add up.In addition, brightness detects mould
Whether block 301 can also be directed to each coloured light respectively, in each photosensitive unit U, judge to have in each photosensitive pixel row super
More than half brightness values is more than a threshold value, and M photosensitive pixel row for being more than threshold value more than half brightness value is set
For high-high brightness distribution.So, above are only for example, being not limited thereto.
The high-high brightness distribution of beneath for example bright single photosensitive unit.
Fig. 5 A, Fig. 5 B, Fig. 5 C are the high-high brightness distribution models for single photosensitive unit according to one embodiment of the invention
The schematic diagram enclosed.In the present embodiment, by taking the photosensitive unit U1 corresponding to one of display pixel of original image as an example, sense
Light unit U1 includes 5 × 5 photosensitive pixels.So, herein by way of example only, it is not limited thereto.
Here, the high-high brightness distribution of one of which coloured light is, for example, 2 × 5 photosensitive pixels in photosensitive unit U1
SP, the one of which of high-high brightness distribution 501,502,503 as shown in Fig. 5 A, Fig. 5 B, Fig. 5 C.So, it is only for example herein
Illustrate, actual distribution situation can be optionally and different.And in other embodiments, high-high brightness distribution can also be
3 × 5 photosensitive pixel SP.And the photosensitive pixel row included by high-high brightness distribution is in succession together.
And after the high-high brightness distribution of white light in obtaining each photosensitive unit, in step S415, processing
Unit 120 adds up module 303 by corresponding to white light in each photosensitive unit in high-high brightness distribution by brightness
Brightness value add up, use obtain each photosensitive unit in white light totalling after brightness value.
Also, in the step s 420, processing unit 120 by image generating module 305 by the colors of each photosensitive unit
Brightness value is set as the pixel data of display pixel corresponding to image after adjustment after the totalling of light.
By Fig. 5 A, Fig. 5 B, Fig. 5 C photosensitive unit U1 exemplified by, it is assumed that Fig. 5 A show red light high-high brightness distribution model
The high-high brightness distribution 502 that 501, Fig. 5 B show green light is enclosed, Fig. 5 C show the high-high brightness distribution model of blue light
Enclose 503.So, herein only for convenience of description, it is not limited thereto.Brightness adds up module 303 by the institute of high-high brightness distribution 501
Including brightness value add up and brightness value R-Sum after being added up；Brightness value included by high-high brightness distribution 502 is added
Brightness value G-Sum after always being added up；After brightness value totalling included by high-high brightness distribution 503 is added up
Brightness value B-Sum.Accordingly, brightness adds up module 303 and can obtained corresponding to the new pixel data (R- of one group of photosensitive unit U1
Sum,G-Sum,B-Sum)。
Afterwards, image generating module 305 produces image after an adjustment according to the Pixel Dimensions of original image, and will be bright
Degree adds up the new pixel data (R-Sum, G-Sum, B-Sum) that module 303 is obtained and is set as in image corresponding to after adjusting
The pixel data of photo-sensitive cell U1 display pixel.By that analogy, set one by one after adjustment by the above method each in image
The pixel data of display pixel.
Assuming that each RGB data represents that (that is, a coloured light uses 8 ratios using 24 bits (bit) in original image
It is special), then in original image a display pixel can use the memory space to N1 × N2 24 bits.And scheme after assuming adjustment
Each RGB data then for example represents (that is, a coloured light uses 16 bits) using 48 bits as in, then after adjusting in image
A display pixel can only use the memory space to 48 bits.
In summary, analyzed with the angle of energy, although the size of photo-sensitive cell and the difference of configuration mode can cause
The view data of photo-sensitive cell output produces shade phenomenon, however, being projected to photosensitive member by the object to be sampled entirety
The energy of part is energy and the brightness that can truly reflect image.And by finding out the high-high brightness distribution of white light,
It can will filter out, accordingly, reducible image and the object to be sampled in photosensitive unit because scattering sensed brightness value
Between brightness similarity, can also reduce the generation of interference fringe, and then lift the expressivity of image detail.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of view data production method, original image is obtained by photo-sensitive cell, wherein the photo-sensitive cell has multiple
Photosensitive unit, and the multiple brightness values sensed by each those photosensitive unit form one in the original image
Display pixel, those each photosensitive units include N1 × N2 photosensitive pixel, and N1 and N2 is positive integer, it is characterised in that the party
Method includes：
Each those photosensitive unit corresponding high-high brightness distribution in the original image is obtained, including：
In N1 photosensitive pixel row of each those photosensitive unit, M above-mentioned light-sensitive images of those brightness value highests are taken out
Plain row, wherein above-mentioned M photosensitive pixel row includes M × N2 above-mentioned photosensitive pixels, and when N1 is 3 multiple, set M as
N1/3, when N1 is not 3 multiple, M is set as the smallest positive integral x not less than N1/3 or sets integers of the M as x+1；And
Set above-mentioned M photosensitive pixel behavior high-high brightness distribution；
Those brightness values in each self-corresponding high-high brightness distribution of coloured light of plural number are added up, uses and obtains each
Brightness value after the totalling of each those coloured light on those photosensitive units；And
Image institute is right after brightness value after the totalling of each those coloured light of each those photosensitive unit is set as into adjustment
The pixel data for the display pixel answered.
2. view data production method according to claim 1, it is characterised in that those coloured light include red light, green
Light and blue light.
3. view data production method according to claim 1, it is characterised in that set above-mentioned M photosensitive pixel behavior
The step of high-high brightness distribution, includes：
Those each coloured light are directed to respectively, in those each photosensitive units, by those brightness of those each photosensitive pixel rows
Value is added；And
It is that the above-mentioned M photosensitive pixel row of highest is set as the high-high brightness distribution by the value after those added luminances.
4. view data production method according to claim 1, it is characterised in that set above-mentioned M photosensitive pixel behavior
The step of high-high brightness distribution, includes：
Those each coloured light are directed to respectively, in those each photosensitive units, by those brightness of those each photosensitive pixel rows
Value is average again after being added；And
It is that the above-mentioned M photosensitive pixel row of highest is set as that the high-high brightness is distributed by value average again after those added luminances
Scope.
5. view data production method according to claim 2, it is characterised in that set above-mentioned M photosensitive pixel behavior
The step of high-high brightness distribution, includes：
Those each coloured light are directed to respectively, in those each photosensitive units, judge whether have in those each photosensitive pixel rows
Those brightness values more than half are more than threshold value；And
The above-mentioned M photosensitive pixel row for being more than the threshold value more than those brightness values of half is set as that the high-high brightness is distributed
Scope.
A kind of 6. view data generation device, it is characterised in that including：
Photo-sensitive cell, including multiple photosensitive units, and the multiple brightness values sensed by each those photosensitive unit come
The display pixel formed in original image, those photosensitive units of each of which include N1 × N2 photosensitive pixel, N1 and N2
For positive integer；
Memory cell, including multiple modules；And
Processing unit, the photo-sensitive cell and the memory cell are coupled to, and the original is being formed to obtain by the photo-sensitive cell
After the view data of beginning image, those modules are performed to produce image after adjustment；
Wherein, those modules include：
Brightness detection module, each those photosensitive unit corresponding high-high brightness distribution in the original image is obtained,
Wherein, the brightness detection module takes out those brightness value highests M in N1 photosensitive pixel row of those each photosensitive units
Individual above-mentioned photosensitive pixel row, and above-mentioned M photosensitive pixel behavior high-high brightness distribution is set, wherein above-mentioned M are photosensitive
Pixel column includes M × N2 above-mentioned photosensitive pixels, and when N1 is 3 multiple, M is set as N1/3, when N1 is not 3 multiple
When, M is set as the smallest positive integral x not less than N1/3 or sets integers of the M as x+1；
Brightness adds up module, and those brightness values in each self-corresponding high-high brightness distribution of coloured light of plural number are added up,
Use obtain each those photosensitive unit on each those coloured light totalling after brightness value；And
Image generating module, brightness value after the totalling of those each coloured light of each those photosensitive unit is set as the tune
The pixel data of display pixel corresponding to image after whole.
7. view data generation device according to claim 6, it is characterised in that those coloured light include red light, green
Light and blue light.
8. view data generation device according to claim 6, it is characterised in that the brightness detection module is respectively for every
One those coloured light, in those each photosensitive units, by those added luminances of those each photosensitive pixel rows, and should
Value after a little added luminances is set as the high-high brightness distribution for the above-mentioned M photosensitive pixel row of highest.
9. view data generation device according to claim 6, it is characterised in that the brightness detection module is respectively for every
One those coloured light, will be average again after those added luminances of those each photosensitive pixel rows in those each photosensitive units,
And it is that the above-mentioned M photosensitive pixel row of highest is set as that the high-high brightness is distributed by value average again after those added luminances
Scope.
10. view data generation device according to claim 6, it is characterised in that the brightness detection module is directed to respectively
Those each coloured light, in those each photosensitive units, judge being somebody's turn to do for half whether is had more than in those each photosensitive pixel rows
A little brightness values are more than threshold value, and the above-mentioned M photosensitive pixel row that will be more than the threshold value more than those brightness values of half
It is set as the high-high brightness distribution.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103144104A TW201624421A (en) | 2014-12-17 | 2014-12-17 | Method and apparatus for generating image data |
| TW103144104 | 2014-12-17 |
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| CN105991979A CN105991979A (en) | 2016-10-05 |
| CN105991979B true CN105991979B (en) | 2018-02-02 |
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| CN201510088387.5A Active CN105991979B (en) | 2014-12-17 | 2015-02-26 | image data generating method and device |
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| JP (1) | JP6073403B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101305398A (en) * | 2005-10-12 | 2008-11-12 | 有源光学有限公司 | Method for forming synthesis image based on a plurality of image frames |
| CN102572275A (en) * | 2010-12-27 | 2012-07-11 | 株式会社日立制作所 | Imaging device, image processing device, image processing method and image processing software |
| CN103119924A (en) * | 2010-10-15 | 2013-05-22 | 夏普株式会社 | Image processing device, image processing method, image processing program, and recording medium |
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| JP4631966B2 (en) * | 2008-12-22 | 2011-02-16 | ソニー株式会社 | Image processing apparatus, image processing method, and program |
| JP5220777B2 (en) * | 2010-01-21 | 2013-06-26 | オリンパス株式会社 | Image processing apparatus, imaging apparatus, program, and image processing method |
| JP5469537B2 (en) * | 2010-01-26 | 2014-04-16 | 日本放送協会 | Viewfinder video generator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101305398A (en) * | 2005-10-12 | 2008-11-12 | 有源光学有限公司 | Method for forming synthesis image based on a plurality of image frames |
| CN103119924A (en) * | 2010-10-15 | 2013-05-22 | 夏普株式会社 | Image processing device, image processing method, image processing program, and recording medium |
| CN102572275A (en) * | 2010-12-27 | 2012-07-11 | 株式会社日立制作所 | Imaging device, image processing device, image processing method and image processing software |
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| JP2016116207A (en) | 2016-06-23 |
| JP6073403B2 (en) | 2017-02-01 |
| CN105991979A (en) | 2016-10-05 |
| TW201624421A (en) | 2016-07-01 |
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