CN103533352A - Compression method and device and decompression method and device for image with transparency - Google Patents
Compression method and device and decompression method and device for image with transparency Download PDFInfo
- Publication number
- CN103533352A CN103533352A CN201310450213.XA CN201310450213A CN103533352A CN 103533352 A CN103533352 A CN 103533352A CN 201310450213 A CN201310450213 A CN 201310450213A CN 103533352 A CN103533352 A CN 103533352A
- Authority
- CN
- China
- Prior art keywords
- image
- opaque
- transparency
- compression
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a compression method and device and a decompression method and device for an image with transparency. A compression method for the image with transparency comprises the steps of obtaining the image data of original channels A, R, G and B of the image with transparency; respectively pre-multiplying the image data of the channels R, G and B by the image data of the channel A, wherein a pre-multiplying formula is RGB=RGB*A/MAX (A), MAX (A) denotes the maximum value of the data of the channel A; saving the image data of the channels R, G and B obtained through pre-multiplication as a first nontransparent image and saving the image data of the channel A as a second nontransparent image, wherein a formula for the image data of the channel A is R=G=B=A; respectively compressing the first nontransparent image and the second nontransparent image by adopting a nontransparent image lossy compression algorithm. The compression method and device for the image with transparency provided by the invention have the advantage that the compression ratio of the image with transparency is improved.
Description
Technical field
The present invention relates to image processing field, relate in particular to a kind of compression method and device, decompression method and device of the image with transparency.
Background technology
Image compression in multimedia application needs higher compression ratio, thereby the image compression in multimedia application adopts lossy compression method method conventionally.The feature of lossy compression method is: one, compressed image and original image are incomplete same; Two, than the compression ratio of Lossless Compression, exceed a lot.Existing popular Image Lossy Compression algorithm is not supported transparency conventionally, and this makes this type of popular Image Lossy Compression algorithm cannot be applied to the compression with transparency image.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of compression method and device, decompression method and device of the image with transparency, improves compression ratio.
For solving the problems of the technologies described above, the present invention proposes a kind of compression method of the image with transparency, comprising:
Step 1, obtains the view data of original A, R with the image of transparency, G, tetra-passages of B;
Step 2, takes advantage of the view data of R, G, tri-passages of B with A channel view data respectively in advance, and the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), and wherein, MAX (A) refers to the maximum of A channel data;
Step 3, the R, the G that after taking advantage of in advance, obtain, B triple channel view data are saved as to the first opaque image, A channel view data is saved as to the second opaque image, the view data formula of A channel is R=G=B=A, R=G=B=A refer to using described with the A channel data in the image of transparency the three-channel data of R, G, B as described the second opaque image;
Step 4, is used opaque image Lossy Compression Algorithm respectively the first opaque image and the second opaque image to be compressed.
Further, the compression method of the above-mentioned image with transparency also can have following characteristics, also comprises:
Step 5, two images that obtain after the first opaque image and the second opaque image compression are stored respectively and transmitted, or, two image combinings that obtain are become to Single document store, transmit after the first opaque image and the second opaque image compression.
For solving the problems of the technologies described above, the present invention proposes a kind of compression set of the image with transparency, comprise connected in turn acquisition module, take advantage of module in advance, preserve module and compression module, wherein:
Acquisition module, for obtaining the view data of original A, R with the image of transparency, G, tetra-passages of B;
Take advantage of in advance module, for the view data of R, G, tri-passages of B is taken advantage of in advance with A channel view data respectively, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), and wherein, MAX (A) refers to the maximum of A channel data;
Preserve module, for obtaining, the R, the G that after taking advantage of in advance, obtain, B triple channel view data are saved as to the first opaque image, A channel view data is saved as to the second opaque image, the view data formula of A channel is R=G=B=A, R=G=B=A refer to using described with the A channel data in the image of transparency the three-channel data of R, G, B as described the second opaque image;
Compression module, is used opaque image Lossy Compression Algorithm respectively the first opaque image and the second opaque image to be compressed for obtaining.
Further, the compression method of the above-mentioned image with transparency also can have following characteristics, also comprises:
Transport module, for two images that obtain after the first opaque image and the second opaque image compression are stored respectively and are transmitted, or, two image combinings that obtain are become to Single document store, transmit after the first opaque image and the second opaque image compression.
For solving the problems of the technologies described above, the present invention proposes a kind of decompression method of the image with transparency, comprising:
Step 1, to belonging to the first opaque image of compression and the opaque image of the second compression of the same image with transparency, decompress respectively, obtain the first opaque image and the second opaque image, the first opaque image is R, G, B triple channel view data after taking advantage of in advance, and the second opaque image is by A channel image;
Step 2, the inverse operation that the first opaque image and the second opaque view data are taken advantage of in advance, obtains original A, R, G, B four-way with the image of transparency, and the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.
For solving the problems of the technologies described above, the present invention proposes a kind of decompressing device of the image with transparency, comprising:
Decompression module, for decompressing respectively to belonging to the first opaque image of compression and the opaque image of the second compression of the same image with transparency, obtain the first opaque image and the second opaque image, the first opaque image is R, G, B triple channel image after taking advantage of in advance, and the second opaque image is by A channel image;
The contrary module of taking advantage of in advance, for the inverse operation that the first opaque image and the second opaque view data are taken advantage of in advance, obtain original A, R, G, B four-way data with the image of transparency, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.
Compression method and the device of the image with transparency of the present invention, utilize opaque image Lossy Compression Algorithm to compress band transparency image, the method is by taking advantage of in advance RGB passage and A channel in transparent image, effectively improved the compression effectiveness of Image Lossy Compression algorithm to transparent region, by the RGB passage after taking advantage of in advance and A channel being saved as respectively to the method for two opaque images, make originally cannot be applied to the opaque image Lossy Compression Algorithm of transparent image compression, now carried out transparent image compression, thereby improved the compression ratio with the image of transparency.Decompression method and the device of the image with transparency of the present invention can restore the original ARGB four-way data with transparency image from the view data of utilizing the compression method compression of the image with transparency of the present invention to obtain.
Accompanying drawing explanation
Fig. 1 is with the flow chart of the compression method of the image of transparency in the embodiment of the present invention;
Fig. 2 is with the structured flowchart of the compression set of the image of transparency in the embodiment of the present invention;
Fig. 3 is with the flow chart of the decompression method of the image of transparency in the embodiment of the present invention;
Fig. 4 is with the structured flowchart of the decompressing device of the image of transparency in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Fig. 1 is with the flow chart of the compression method of the image of transparency in the embodiment of the present invention.As shown in Figure 1, in the present embodiment, with the flow process of the compression method of the image of transparency, can comprise the steps:
Step S101, obtains the view data of original A, R with the image of transparency, G, tetra-passages of B;
Step S102, takes advantage of the view data of R, G, tri-passages of B with A channel view data respectively in advance, and the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), and wherein, MAX (A) refers to the maximum of A channel data;
Step S103, the R, the G that after taking advantage of in advance, obtain, B triple channel view data are saved as to the first opaque image, A channel view data is saved as to the second opaque image, the view data formula of A channel is R=G=B=A, R=G=B=A refer to using described with the A channel data in the image of transparency the three-channel data of R, G, B as described the second opaque image;
The second opaque image is the black and white image that a width represents A channel data in original tape transparency image.
Step S104, is used opaque image Lossy Compression Algorithm respectively the first opaque image and the second opaque image to be compressed.
So far, just completed the process of compression.After compression, both the image after two width compressions can be stored respectively, transmitted, and also the image combining after two width compressions can be become to Single document and store, transmit.
The compression method of the image with transparency of the present invention, utilize opaque image Lossy Compression Algorithm to compress band transparency image, the method is passed through R in transparent image, G, B triple channel and A channel are taken advantage of respectively in advance, effectively improved the compression effectiveness of Image Lossy Compression algorithm to transparent region, by by the R after taking advantage of in advance, G, B passage and A channel save as respectively the method for two opaque images, make originally cannot be applied to the opaque image Lossy Compression Algorithm of transparent image compression, now carried out transparent image compression, thereby improved the compression ratio with the image of transparency.
The invention allows for a kind of compression set of the image with transparency, in order to implement the compression method of the above-mentioned image with transparency.
Fig. 2 is with the structured flowchart of the compression set of the image of transparency in the embodiment of the present invention.As shown in Figure 2, in the present embodiment, with the compression set of the image of transparency, comprise acquisition module 210, take advantage of module 220 in advance, preserve module 230 and compression module 240.Acquisition module 210, take advantage of module 220 in advance, preserve module 230 and be connected in turn with compression module 240.Wherein, acquisition module 210 is for obtaining the view data of original A, R with the image of transparency, G, tetra-passages of B.Take advantage of in advance module 220 for the view data of R, G, tri-passages of B is taken advantage of in advance with A channel view data respectively, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.Preserve module 230, for obtaining, the R, the G that after taking advantage of in advance, obtain, B triple channel view data are saved as to the first opaque image, A channel view data is saved as to the second opaque image, the view data formula of A channel is R=G=B=A, R=G=B=A refer to using described with the A channel data in the image of transparency the three-channel data of R, G, B as described the second opaque image.Compression module 240 is used opaque image Lossy Compression Algorithm respectively the first opaque image and the second opaque image to be compressed for obtaining.
In other embodiments of the invention, with the compression set of the image of transparency, can also comprise transport module.Transport module is for storing respectively and transmit two images that obtain after the first opaque image and the second opaque image compression, or, two image combinings that obtain are become to Single document store, transmit after the first opaque image and the second opaque image compression.
The compression set of the image with transparency of the present invention, utilize opaque image Lossy Compression Algorithm to compress band transparency image, this device passes through R in transparent image, G, B passage and A channel are taken advantage of in advance, effectively improved the compression effectiveness of Image Lossy Compression algorithm to transparent region, by by the R after taking advantage of in advance, G, B passage and A channel save as respectively the method for two opaque images, make originally cannot be applied to the opaque image Lossy Compression Algorithm of transparent image compression, now carried out transparent image compression, thereby improved the compression ratio with the image of transparency.
The invention allows for a kind of decompression method of the image with transparency, the data that obtain in order to the compression method compression to by the above-mentioned image with transparency are carried out decompression, restore original A, R, G, B four-way data with transparency image.The process of this decompression is the inverse process with the compression method step of the image of transparency.Below by embodiment, this decompression process is once described.
Fig. 3 is with the flow chart of the decompression method of the image of transparency in the embodiment of the present invention.As shown in Figure 3, in the present embodiment, with the flow process of the decompression method of the image of transparency, can comprise the steps:
Step S301, to belonging to the first opaque image of compression and the opaque image of the second compression of the same image with transparency, decompress respectively, obtain the first opaque image and the second opaque image, the first opaque image is R, G, B triple channel image after taking advantage of in advance, and the second opaque image is by A channel image;
The opaque image of the first compression here refers in the compression method embodiment of the image with transparency shown in Fig. 1 the image obtaining after to the first opaque image compression through step S104, and the opaque image of the second compression refers in the compression method embodiment of the image with transparency shown in Fig. 1 the image obtaining after to the second opaque image compression through step S104.
Step S302, the inverse operation that the first opaque image and the second opaque view data are taken advantage of in advance, obtain original A, R, G, B four-way data with transparency image, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.
The decompression method of the image with transparency of the present invention can restore the original ARGB four-way data with transparency image from the view data of utilizing the compression method compression of the image with transparency of the present invention to obtain.
The invention allows for a kind of decompressing device of the image with transparency, in order to implement the decompression method of the above-mentioned image with transparency.
Fig. 4 is with the structured flowchart of the decompressing device of the image of transparency in the embodiment of the present invention.As shown in Figure 4, in the present embodiment, with the decompressing device of the image of transparency, comprise decompression module 410 and the contrary module 420 of taking advantage of in advance.Decompression module 410 and contrary take advantage of module 420 to interconnect in advance.Wherein, decompression module 410 is for decompressing respectively to belonging to the first opaque image of compression and the opaque image of the second compression of the same image with transparency, obtain the first opaque image and the second opaque image, the first opaque image is R, G, B triple channel image after taking advantage of in advance, and the second opaque image is by A channel image.Contrary take advantage of in advance the inverse operation of module 420 for the first opaque image and the second opaque view data are taken advantage of in advance, obtain original A, R, G, B four-way data with transparency image, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.
The decompressing device of the image with transparency of the present invention can restore the original ARGB four-way data with transparency image from the view data of utilizing the compression method compression of the image with transparency of the present invention to obtain.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. with a compression method for the image of transparency, it is characterized in that, comprising:
Step 1, obtains the view data of original A, R with the image of transparency, G, tetra-passages of B;
Step 2, takes advantage of the view data of R, G, tri-passages of B with A channel view data respectively in advance, and the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), and wherein, MAX (A) refers to the maximum of A channel data;
Step 3, the R, the G that after taking advantage of in advance, obtain, B triple channel view data are saved as to the first opaque image, A channel view data is saved as to the second opaque image, the view data formula of A channel is R=G=B=A, R=G=B=A refer to using described with the A channel data in the image of transparency the three-channel data of R, G, B as described the second opaque image;
Step 4, is used opaque image Lossy Compression Algorithm respectively the first opaque image and the second opaque image to be compressed.
2. the compression method of the image with transparency according to claim 1, is characterized in that, also comprises:
Step 5, two images that obtain after the first opaque image and the second opaque image compression are stored respectively and transmitted, or, two image combinings that obtain are become to Single document store, transmit after the first opaque image and the second opaque image compression.
3. with a compression set for the image of transparency, it is characterized in that, comprise connected in turn acquisition module, take advantage of module in advance, preserve module and compression module, wherein:
Acquisition module, for obtaining the view data of original A, R with the image of transparency, G, tetra-passages of B;
Take advantage of in advance module, for the view data of R, G, tri-passages of B is taken advantage of in advance with A channel view data respectively, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), and wherein, MAX (A) refers to the maximum of A channel data;
Preserve module, for obtaining, the R, the G that after taking advantage of in advance, obtain, B triple channel view data are saved as to the first opaque image, A channel view data is saved as to the second opaque image, the view data formula of A channel is R=G=B=A, R=G=B=A refer to using described with the A channel data in the image of transparency the three-channel data of R, G, B as described the second opaque image;
Compression module, is used opaque image Lossy Compression Algorithm respectively the first opaque image and the second opaque image to be compressed for obtaining.
4. the compression set of the image with transparency according to claim 3, is characterized in that, also comprises:
Transport module, for two images that obtain after the first opaque image and the second opaque image compression are stored respectively and are transmitted, or, two image combinings that obtain are become to Single document store, transmit after the first opaque image and the second opaque image compression.
5. with a decompression method for the image of transparency, it is characterized in that, comprising:
Step 1, to belonging to the first opaque image of compression and the opaque image of the second compression of the same image with transparency, decompress respectively, obtain the first opaque image and the second opaque image, the first opaque image is R, G, B triple channel view data after taking advantage of in advance, and the second opaque image is by A channel image;
Step 2, the inverse operation that the first opaque image and the second opaque view data are taken advantage of in advance, obtains original A, R, G, B four-way with the image of transparency, and the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.
6. with a decompressing device for the image of transparency, it is characterized in that, comprising:
Decompression module, for decompressing respectively to belonging to the first opaque image of compression and the opaque image of the second compression of the same image with transparency, obtain the first opaque image and the second opaque image, the first opaque image is R, G, B triple channel image after taking advantage of in advance, and the second opaque image is by A channel image;
The contrary module of taking advantage of in advance, for the inverse operation that the first opaque image and the second opaque view data are taken advantage of in advance, obtain original A, R, G, B four-way data with the image of transparency, the formula of taking advantage of is in advance: RGB=RGB*A/MAX (A), wherein, MAX (A) refers to the maximum of A channel data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450213.XA CN103533352B (en) | 2013-09-27 | 2013-09-27 | Compression method and device and decompression method and device for image with transparency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450213.XA CN103533352B (en) | 2013-09-27 | 2013-09-27 | Compression method and device and decompression method and device for image with transparency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103533352A true CN103533352A (en) | 2014-01-22 |
| CN103533352B CN103533352B (en) | 2017-01-25 |
Family
ID=49934967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450213.XA Active CN103533352B (en) | 2013-09-27 | 2013-09-27 | Compression method and device and decompression method and device for image with transparency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103533352B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938625A (en) * | 2016-03-18 | 2016-09-14 | 浙江万朋教育科技股份有限公司 | Method for processing alpha channel data in PNG picture format |
| CN106341572A (en) * | 2015-07-06 | 2017-01-18 | 柯尼卡美能达美国研究所有限公司 | Method for supporting color conversion on pre-multiplied data |
| CN109348141A (en) * | 2018-10-31 | 2019-02-15 | 北京达佳互联信息技术有限公司 | Video generation, video broadcasting method, device, electronic equipment and storage medium |
| CN110062238A (en) * | 2019-04-02 | 2019-07-26 | 上海工程技术大学 | A kind of decoding method for four component videos |
| CN115550661A (en) * | 2022-11-25 | 2022-12-30 | 统信软件技术有限公司 | Image compression method, image restoration method, computing device and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036059A (en) * | 2009-09-25 | 2011-04-27 | 腾讯科技（深圳）有限公司 | Method, device and system for compressing and decompressing transparent images |
| CN102103463A (en) * | 2011-02-17 | 2011-06-22 | 杭州华三通信技术有限公司 | Processing method and equipment of user interface information with transparency |
| CN102289829A (en) * | 2011-07-12 | 2011-12-21 | 北京朗玛数联科技有限公司 | Method and device for storing and restoring image and system for processing image |
| US20120120085A1 (en) * | 2010-11-15 | 2012-05-17 | Cisco Technology, Inc. | System and method for providing enhanced graphics in a video environment |
| CN102821279A (en) * | 2012-07-31 | 2012-12-12 | 北京天神互动科技有限公司 | Picture compression method keeping with alpha channel |
-
2013
- 2013-09-27 CN CN201310450213.XA patent/CN103533352B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036059A (en) * | 2009-09-25 | 2011-04-27 | 腾讯科技（深圳）有限公司 | Method, device and system for compressing and decompressing transparent images |
| US20120120085A1 (en) * | 2010-11-15 | 2012-05-17 | Cisco Technology, Inc. | System and method for providing enhanced graphics in a video environment |
| CN102103463A (en) * | 2011-02-17 | 2011-06-22 | 杭州华三通信技术有限公司 | Processing method and equipment of user interface information with transparency |
| CN102289829A (en) * | 2011-07-12 | 2011-12-21 | 北京朗玛数联科技有限公司 | Method and device for storing and restoring image and system for processing image |
| CN102821279A (en) * | 2012-07-31 | 2012-12-12 | 北京天神互动科技有限公司 | Picture compression method keeping with alpha channel |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341572A (en) * | 2015-07-06 | 2017-01-18 | 柯尼卡美能达美国研究所有限公司 | Method for supporting color conversion on pre-multiplied data |
| CN106341572B (en) * | 2015-07-06 | 2019-05-21 | 柯尼卡美能达美国研究所有限公司 | The colour switching of method for supporting to(for) pre-multiplied data |
| CN105938625A (en) * | 2016-03-18 | 2016-09-14 | 浙江万朋教育科技股份有限公司 | Method for processing alpha channel data in PNG picture format |
| CN105938625B (en) * | 2016-03-18 | 2018-10-12 | 浙江万朋教育科技股份有限公司 | A method of alpha channel datas in processing PNG picture formats |
| CN109348141A (en) * | 2018-10-31 | 2019-02-15 | 北京达佳互联信息技术有限公司 | Video generation, video broadcasting method, device, electronic equipment and storage medium |
| CN110062238A (en) * | 2019-04-02 | 2019-07-26 | 上海工程技术大学 | A kind of decoding method for four component videos |
| CN110062238B (en) * | 2019-04-02 | 2020-09-11 | 上海工程技术大学 | Encoding and decoding method for four-component video |
| CN115550661A (en) * | 2022-11-25 | 2022-12-30 | 统信软件技术有限公司 | Image compression method, image restoration method, computing device and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103533352B (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11429852B2 (en) | Convolution acceleration and computing processing method and apparatus, electronic device, and storage medium | |
| CN103533352A (en) | Compression method and device and decompression method and device for image with transparency | |
| EP3304277B1 (en) | Low latency screen mirroring | |
| WO2011041269A3 (en) | Enhanced multi-processor waveform data exchange using compression and decompression | |
| WO2010038212A3 (en) | Embedded video compression for hybrid contents | |
| CN103152573A (en) | Method and system for transmitting image frame between mobile terminal and intelligent television set | |
| CN102724500B (en) | A kind of compressing/decompressing method of video data and system | |
| US9836248B2 (en) | In-memory data compression complementary to host data compression | |
| CN102821275B (en) | Data compression method and device, uncompressing data and device | |
| CN104065976B (en) | A kind of compression of images and security transmission method based on video | |
| WO2018058575A1 (en) | Processing method and system for flight image data, and ground end device | |
| CN102833463A (en) | Picture processing method and picture processing equipment | |
| US9153017B1 (en) | System and method for optimized chroma subsampling | |
| EP2869575B1 (en) | Adaptive inter-channel transform for wavelet color image compression | |
| CN103780913A (en) | Data compression method based on error hiding | |
| CN104683818A (en) | Image compression method based on biorthogonal invariant set multi-wavelets | |
| JP2011139163A5 (en) | Image processing apparatus, image processing method and image forming apparatus | |
| CN102547058A (en) | JPEG (Joint Photographic Experts Group) image processing method and system | |
| KR20160082521A (en) | Chroma down-conversion and up-conversion processing | |
| CN104244000A (en) | JPEG picture rapid splicing method and device | |
| CN104202609A (en) | Video coding method and video decoding method | |
| CN102647597A (en) | Joint photographic experts group (JPEG) image compression method based on polygon clipping discrete cosine transformation (DCT) | |
| CN204180173U (en) | Cmos image sensor double-channel data transmission structure | |
| EP3026912A1 (en) | Method and device for encoding and decoding a HDR picture and a LDR picture using illumination information | |
| WO2024078403A1 (en) | Image processing method and apparatus, and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 541000 Xifeng Road, Xiufeng District, Guilin, the Guangxi Zhuang Autonomous Region, 2 Patentee after: Guilin harbour network Polytron Technologies Inc Address before: 541001, 1-3 floor, government office building, 2, Xifeng Road, Xiufeng Road, Guilin, the Guangxi Zhuang Autonomous Region. Patentee before: Guilin Li Gang network technology company limited |