CN108198161A - A kind of fusion method, device and the equipment of dual camera image - Google Patents
A kind of fusion method, device and the equipment of dual camera image Download PDFInfo
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- CN108198161A CN108198161A CN201711482486.7A CN201711482486A CN108198161A CN 108198161 A CN108198161 A CN 108198161A CN 201711482486 A CN201711482486 A CN 201711482486A CN 108198161 A CN108198161 A CN 108198161A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10068—Endoscopic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20212—Image combination
- G06T2207/20221—Image fusion; Image merging
Abstract
The invention discloses a kind of fusion method of dual camera image, including：Extract the first luminance information and colouring information of the targeted color image of predetermined format, the second luminance information of black white image；It is merged after first luminance information is merged with the second luminance information with colouring information, and the image after fusion is converted to the blending image of rgb format.It can be seen that, in this programme, when dual camera picture is merged, the luminance information of coloured image can be merged with the luminance information of black white image, and the luminance information after fusion with colouring information merge and generates final image, this mode is applied in endoscopic system, the problems such as brightness of image that can solve endoscopic system is not high, distant view is partially dark, dynamic range of images is small, details is fuzzy, improve the clarity of blending image；The invention also discloses a kind of fusing device, equipment and the computer readable storage mediums of dual camera image, equally can realize above-mentioned technique effect.
Description
Technical field
The present invention relates to image fusion technology field, more specifically to a kind of fusion method of dual camera image,
Device, equipment and computer readable storage medium.
Background technology
At present, with the fast development of mobile phone camera function in recent years, consumer needs the camera for possessing more power
It asks and is gradually increasing.Night scene can effectively promote the user to take pictures to camera as the common photographed scene of user, its effect optimization
Experience.Night scene shooting style commonly used in the trade is at present:Using a colour imagery shot (RGB)+black and white camera (MONO), lead to
Two camera images of fusion are crossed to promote Night Scenery Effect.When merging RGB color image and MONO black white images at present, only extract
The edge details of RGB color image, the luminance signal of RGB color image are dropped so that the image of fusion is without fully profit
With the characteristic of dual camera (RGB+MONO), therefore when the fusion means are applied to field of medical device, it is impossible to solution well
Certainly brightness is not high in endoscopic system, the partially dark situation of distant view.
Therefore, RGB color image and MONO black white images how are merged, avoids the brightness of image that endoscopic system generates not
High, noise is big and fogging image, is those skilled in the art's problem to be solved.
Invention content
The purpose of the present invention is to provide a kind of fusion method of dual camera image, device, equipment and computer-readable
Storage medium merges RGB color image and MONO black white images to realize, brightness of image is not high, makes an uproar in solution endoscopic system
The problem of sound is big, fogging image.
To achieve the above object, an embodiment of the present invention provides following technical solutions：
A kind of fusion method of dual camera image, including：
The coloured image of rgb format is converted to the targeted color image of predetermined format；
The first luminance information and colouring information of the targeted color image are extracted, the second of extraction MONO black white images is bright
Spend information；
First luminance information with second luminance information is merged, generates third luminance information；
The third luminance information with the colouring information is merged, and the image after fusion is converted into RGB lattice
The blending image of formula.
Wherein, it is described to merge first luminance information with second luminance information, generate third luminance information, packet
It includes：
First luminance information is carried out high dynamic pyramid with second luminance information to merge, generates third brightness
Information.
Wherein, it is described to merge first luminance information with second luminance information, generate third luminance information, packet
It includes：
First luminance information is carried out the high dynamic based on wavelet transformation with second luminance information to merge, is generated
Third luminance information.
Wherein, the targeted color image that the coloured image of rgb format is converted to predetermined format, including：
By the coloured image of rgb format be converted to any one in HSI forms, HSV forms, YCbCr format pre- fix
The targeted color image of formula.
A kind of fusing device of dual camera image, including：
First format converting module, for the coloured image of rgb format to be converted to the targeted color image of predetermined format；
Information extraction modules, for extracting the first luminance information of the targeted color image and colouring information, extraction
Second luminance information of MONO black white images；
First Fusion Module, for first luminance information to be merged with second luminance information, generation third is bright
Spend information；
Second Fusion Module, for the third luminance information to be merged with the colouring information；
Second format converting module, for the image after merging to be converted to the blending image of rgb format.
Wherein, first Fusion Module includes：
First integrated unit, for first luminance information and second luminance information to be carried out high dynamic pyramid
Fusion generates third luminance information.
Wherein, first Fusion Module includes：
Second integrated unit, for carrying out first luminance information and second luminance information based on wavelet transformation
High dynamic fusion, generate third luminance information.
Wherein, first format converting module is specifically used for：
By the coloured image of rgb format be converted to any one in HSI forms, HSV forms, YCbCr format pre- fix
The targeted color image of formula.
A kind of fusion device of dual camera image, including：
Memory, for storing computer program；
Processor, for performing computer program when, realize the step of the fusion method of above-mentioned dual camera image
Suddenly.
A kind of computer readable storage medium is stored with computer program on the computer readable storage medium, described
The step of fusion method of above-mentioned dual camera image is realized when computer program is executed by processor.
By above scheme it is found that a kind of fusion method of dual camera image provided in an embodiment of the present invention, including：It will
The coloured image of rgb format is converted to the targeted color image of predetermined format；Extract the first brightness of the targeted color image
Information and colouring information extract the second luminance information of MONO black white images；First luminance information and described second is bright
Information fusion is spent, generates third luminance information；The third luminance information is merged with the colouring information, and will fusion
Image afterwards is converted to the blending image of rgb format.
As it can be seen that in the present solution, when dual camera picture is merged, it can be by the luminance information and black and white of coloured image
The luminance information of image is merged, and the luminance information after fusion with colouring information merge and generates final image,
This mode is applied in endoscopic system, the brightness of image that can solve endoscopic system is not high, distant view is partially dark, image moves
The problems such as state range is small, details is fuzzy improves the clarity of blending image；The invention also discloses a kind of dual camera images
Fusing device, equipment and computer readable storage medium, equally can realize above-mentioned technique effect.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of fusion method flow diagram of dual camera image disclosed by the embodiments of the present invention；
Fig. 2 is image co-registration flow diagram disclosed by the embodiments of the present invention；
Fig. 3 is a kind of fusing device structure diagram of dual camera image disclosed by the embodiments of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of fusion method of dual camera image, device, equipment and computer-readable deposit
Storage media to realize fusion RGB color image and MONO black white images, solves that brightness of image in endoscopic system is high, noise
Greatly, the problem of fogging image.
Referring to Fig. 1, a kind of fusion method of dual camera image provided in an embodiment of the present invention, including：
S101, the targeted color image that the coloured image of rgb format is converted to predetermined format；
Specifically, in the present solution, in order to which the RGB color image and MONO that shoot dual camera in endoscopic system are black
White image is merged, and needs to be converted to the coloured image of rgb format into the targeted color image of predetermined format, so as to fulfill inciting somebody to action
The luminance component and color component of coloured image are detached, to be performed using the luminance information of color image and colouring information
Subsequent operation.
The first luminance information and colouring information of S102, the extraction targeted color image, extraction MONO black white images
Second luminance information；
Specifically, coloured image and black white image in this programme, can in real time acquire in endoscopic system
Image, that is, after receiving image co-registration instruction, the image of two camera shootings of acquisition in real time is merged；Can also be advance
The image of caching after receiving image co-registration instruction, obtains corresponding color image and black white image from the image of caching,
And it is merged.
It should be noted that when carrying out the fusion of image in scheme at present, the luminance information of coloured image is not accounted for, because
For endoscopic system, the image of generation will appear the problems such as brightness is not high for this, thus in the present solution, color image into
After row format conversion, the first luminance information I1 of targeted color image is needed to detach and extracted, detaches and extracts targeted color figure
The colouring information HS of picture, and then the second luminance information I2 of black white image is detached and extracts, so as to improve the bright of fused image
Degree.
S103, first luminance information with second luminance information is merged, generates third luminance information；
S104, the third luminance information is merged, and the image after fusion is converted to the colouring information
The blending image of rgb format.
It is image co-registration flow diagram provided in this embodiment referring to Fig. 2, in the present solution, extraction the first brightness letter
It after ceasing I1 and the second luminance information I2, needs to merge the first luminance information I1 and the second luminance information I2, generates third
Luminance information I3, and then by the way that third luminance information I3 and colouring information HS are combined, realize third luminance information I3
With merging for colouring information HS, so as to obtain final endoscopic images.It should be noted that coloured image carries out at the beginning
Format conversion, therefore after being merged, need to carry out format conversion again, so as to generate the blending image of rgb format.
As can be seen that this programme when being merged to the picture that dual camera is shot, can believe the brightness of coloured image
Breath is merged with the luminance information of black white image, and merge generation finally with colouring information by the luminance information after fusion
Image, this mode is applied in endoscopic system, the brightness of image that can solve endoscopic system is not high, distant view is inclined
Secretly, the problems such as dynamic range of images is small, details is fuzzy improves the clarity of blending image
It is in the present embodiment, described by first luminance information and second luminance information based on above-described embodiment
Fusion generates third luminance information, including：
First luminance information is carried out high dynamic pyramid with second luminance information to merge, generates third brightness
Information；Alternatively,
First luminance information is carried out the high dynamic based on wavelet transformation with second luminance information to merge, is generated
Third luminance information.
Specifically, when the first luminance information is merged with the second luminance information, can be melted by high dynamic pyramid
Close or based on wavelet transformation high dynamic fusion mode, naturally it is also possible to merged by other means, in this programme
In not specific limit.In the present embodiment, provide it is a kind of by high dynamic pyramid fusion method to the first luminance information and
The method that second luminance information is merged, this method specifically comprise the following steps：
Step 1：Calculate the contrast of the first luminance information and the second luminance information and the exposure factor；Step 2：According to right
Each pixel weight is calculated than degree and the exposure factor, the weight of each pixel forms a width weight image；Step 3：To first
Luminance information and the second luminance information carry out multiple dimensioned gaussian pyramid decomposition respectively, and Laplce point is carried out to weight image
Solution；Step 4：Then on each scale, the first luminance information and the second luminance information are multiplied by respective weight, are then added
To pyramid diagram picture；Step 5：Pyramid diagram picture is reconstructed on multiple dimensioned.Pass through above-mentioned steps, you can realize bright by first
Degree information is merged with the second luminance information, so as to generate third luminance information, is believed with will pass through the third luminance information with color
Breath is merged, and generates final blending image.
Based on the embodiment of above-mentioned arbitrary fusion method, in the present embodiment, the coloured image by rgb format is converted
For the targeted color image of predetermined format, including：
By the coloured image of rgb format be converted to any one in HSI forms, HSV forms, YCbCr format pre- fix
The targeted color image of formula.
Specifically, in the present embodiment, predetermined format can be any one in HSI forms, HSV forms, YCbCr format
Person, current this programme can also be converted to the extended formatting that can play effect same, not specific herein to limit, into HSI lattice
This programme is described for formula, HSV forms, YCbCr format.
If predetermined format is HSI forms, the fusion method of this programme is specially：Obtain RGB color image and MONO
RGB color image is converted to HSI forms by black white image, detaches the luminance information I1 of the RGB color image of HSI forms, separation
The colouring information HS of the RGB color image of HSI forms；By the bright of the luminance information I2 of MONO black white images and RGB color image
It spends information I1 and carries out high dynamic pyramid fusion, the luminance information I3 after being merged；To merge obtained luminance information I3 and
The color information HS of RGB color image is merged, and the HSI format-patterns after fusion are converted to rgb format image, so as to
Obtain final endoscopic images.
If predetermined format is HSV forms, the fusion method of this programme is specially：RGB color image is converted into HSV
Space；The luminance information V1 of the RGB color image of HSV forms is detached, by the luminance information V2 and RGB color of MONO black white images
The luminance information V1 of image carries out high dynamic pyramid fusion, the luminance information V3 after being merged, the brightness that fusion is obtained
Information V3 and the color information HS of RGB color image are merged, and the HSV format-patterns after fusion are converted to rgb format
Image, so as to obtain final endoscopic images.
If predetermined format is YCbCr format, the fusion method of this programme is specially：RGB color image is converted into
YCbCr space；Detach the luminance information Y1 of the RGB color image of YCbCr format, by the luminance information Y2 of MONO black white images and
The luminance information Y1 of RGB color image carries out high dynamic pyramid fusion, and the luminance information Y3 after being merged obtains fusion
Luminance information Y3 and the color information CbCr of RGB color image merged, and the YCbCr format image after fusion is converted
For rgb format image, so as to obtain final endoscopic images.
Since MONO black and white cameras do not have Bayer filter, obtained image compares RGB in brightness, details and noise etc.
Colour imagery shot is good, therefore this programme provides color by using RGB cameras, and MONO cameras provide brightness, details etc., from
And it is big to synthesize a dynamic range, brightness is high, the abundant endoscopic image of details.
Fusing device provided in an embodiment of the present invention is introduced below, fusing device described below is with being described above
Fusing device method can be cross-referenced.
Referring to Fig. 3, a kind of fusing device of dual camera image provided in an embodiment of the present invention, including：
First format converting module 100, for the coloured image of rgb format to be converted to the targeted color figure of predetermined format
Picture；
Information extraction modules 200, for extracting the first luminance information of the targeted color image and colouring information, extraction
Second luminance information of MONO black white images；
First Fusion Module 300 for first luminance information to be merged with second luminance information, generates third
Luminance information；
Second Fusion Module 400, for the third luminance information to be merged with the colouring information；
Second format converting module 500, for the image after merging to be converted to the blending image of rgb format.
Wherein, first Fusion Module includes：
First integrated unit, for first luminance information and second luminance information to be carried out high dynamic pyramid
Fusion generates third luminance information.
Wherein, first Fusion Module includes：
Second integrated unit, for carrying out first luminance information and second luminance information based on wavelet transformation
High dynamic fusion, generate third luminance information.
Wherein, first format converting module is specifically used for：
By the coloured image of rgb format be converted to any one in HSI forms, HSV forms, YCbCr format pre- fix
The targeted color image of formula.
The embodiment of the invention also discloses a kind of fusion device of dual camera image, including：
Memory, for storing computer program；Processor, for performing computer program when, are realized above-mentioned double
The step of fusion method of camera image.
The embodiment of the invention also discloses a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, the computer program realizes the fusion method of above-mentioned dual camera image when being executed by processor
Step.
Specifically, the storage medium can include：USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. are various can store program
The medium of code.
In summary it can be seen, a kind of fusion method of dual camera image provided in an embodiment of the present invention, device, equipment and
Computer readable storage medium, can be by the luminance information and black white image of coloured image when dual camera picture is merged
Luminance information merged, and the luminance information after fusion and colouring information merge and generate final image, by this
Kind of mode is applied in endoscopic system, and the brightness of image that can solve endoscopic system is not high, distant view is partially dark, image dynamic model
The problems such as small, details is fuzzy is enclosed, improves the clarity of blending image.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (10)
1. a kind of fusion method of dual camera image, which is characterized in that including：
The coloured image of rgb format is converted to the targeted color image of predetermined format；
Extract the first luminance information and colouring information of the targeted color image, the second brightness letter of extraction MONO black white images
Breath；
First luminance information with second luminance information is merged, generates third luminance information；
The third luminance information with the colouring information is merged, and the image after fusion is converted into rgb format
Blending image.
2. fusion method according to claim 1, which is characterized in that described by first luminance information and described second
Luminance information merges, and generates third luminance information, including：
First luminance information is carried out high dynamic pyramid with second luminance information to merge, generation third brightness letter
Breath.
3. fusion method according to claim 2, which is characterized in that described by first luminance information and described second
Luminance information merges, and generates third luminance information, including：
First luminance information is carried out the high dynamic based on wavelet transformation with second luminance information to merge, generates third
Luminance information.
4. fusion method as claimed in any of claims 1 to 3, which is characterized in that the colour by rgb format
Image is converted to the targeted color image of predetermined format, including：
The coloured image of rgb format is converted into any one predetermined format in HSI forms, HSV forms, YCbCr format
Targeted color image.
5. a kind of fusing device of dual camera image, which is characterized in that including：
First format converting module, for the coloured image of rgb format to be converted to the targeted color image of predetermined format；
Information extraction modules, for extracting the first luminance information of the targeted color image and colouring information, extraction MONO is black
Second luminance information of white image；
First Fusion Module, for first luminance information to be merged with second luminance information, generation third brightness letter
Breath；
Second Fusion Module, for the third luminance information to be merged with the colouring information；
Second format converting module, for the image after merging to be converted to the blending image of rgb format.
6. fusing device according to claim 5, which is characterized in that first Fusion Module includes：
First integrated unit melts for first luminance information to be carried out high dynamic pyramid with second luminance information
It closes, generates third luminance information.
7. fusing device according to claim 6, which is characterized in that first Fusion Module includes：
Second integrated unit, for first luminance information and second luminance information to be carried out the height based on wavelet transformation
Dynamic fusion generates third luminance information.
8. the fusing device according to any one in claim 5 to 7, which is characterized in that the first format conversion mould
Block is specifically used for：
The coloured image of rgb format is converted into any one predetermined format in HSI forms, HSV forms, YCbCr format
Targeted color image.
9. a kind of fusion device of dual camera image, which is characterized in that including：
Memory, for storing computer program；
Processor realizes such as Claims 1-4 any one of them dual camera image during for performing the computer program
Fusion method the step of.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program is realized when the computer program is executed by processor such as Claims 1-4 any one of them dual camera image
The step of fusion method.
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| CN113129244B (en) * | 2021-04-16 | 2022-10-18 | 重庆邮电大学 | Multi-scale medical image fusion method based on local Laplace decomposition |
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Application publication date: 20180622 |