CN108776982A - A kind of display methods based on palette compressed picture - Google Patents
A kind of display methods based on palette compressed picture Download PDFInfo
- Publication number
- CN108776982A CN108776982A CN201810547767.4A CN201810547767A CN108776982A CN 108776982 A CN108776982 A CN 108776982A CN 201810547767 A CN201810547767 A CN 201810547767A CN 108776982 A CN108776982 A CN 108776982A
- Authority
- CN
- China
- Prior art keywords
- color
- textures
- information
- saucer
- picture
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/001—Texturing; Colouring; Generation of texture or colour
Abstract
A kind of display methods based on palette compressed picture, includes the following steps：From palette compressed picture color saucer information and color index information；Using color saucer information and color index information, color saucer textures and color index textures are generated respectively；Color saucer textures and color index textures are loaded respectively；Color saucer textures and color index textures are sampled to obtain final color and are shown.The present invention saves the memory occupied when show palette compressed picture by the way that color saucer and color index are stored in respectively in two pictures.
Description
Technical field
The present invention relates to picture compression field, especially a kind of display methods based on palette compressed picture.
Background technology
It can all be used in online game and arrive many picture resources.If without compression, it is loaded directly into meeting in memory
It is very big.Consumption memory can be compared.So present video card generally has hardware-compressed format.For example there is DXT to compress lattice on PC
Formula has the compressed formats such as ETC, PVRTC in mobile device.If using these formats in software development, hardware is supported again if,
Memory can be saved.But above-mentioned format has disadvantage, is exactly that these formats damage, and picture after decompression and does not compress
Picture not exclusively, can lose some picture qualities.For being compressed with translucent picture, display effect is not too
It is good.
Existing png8 picture formats are a kind of picture formats of lossless compression, belong to the format of non-hardware support.It makes
Picture is compressed with palette techniques, the picture of general 32 color can be compressed to a quarter size, but few hard
Part is supported.If generally the picture of the format is shown on video card, need to be decompressed completely, what this process occupied
Memory is very big.
Invention content
In order to solve the shortcomings of the prior art, the purpose of the present invention is to provide one kind based on palette compression reconciliation
Press the display methods of picture.The present invention is saved by the way that color saucer and color index are stored in respectively in two pictures
The memory that picture occupies.
To achieve the above object, the present invention proposes the display methods based on palette compressed picture, includes the following steps：
1）From palette compressed picture color saucer information and color index information；
2）Using color saucer information and color index information, color saucer textures and color index textures are generated respectively；
3）Color saucer textures and color index textures are loaded respectively；
4）Color saucer textures and color index textures are sampled to obtain final color and are shown.
Further, the size of the color index information is a byte.
Further, the step 4）It is that color saucer textures and color index textures are sampled using tinter.
Display methods provided by the invention based on palette compressed picture, has the advantages that：With it is existing right
Png pictures carry out decompression completely and compare, and this method is preserved the color saucer of picture and color index using palette techniques respectively
In two pictures, then png pictures are generated by tinter and are shown.This process can save picture disappearing in memory
Consumption, and picture quality will not be lost, more pictures can be loaded into using an equal amount of memory of this method, compared to existing right
Png pictures, which carry out decompression completely, which to be compared, can save 4 times of spaces.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, and with the present invention's
Embodiment together, for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the display methods flow chart based on palette compressed picture according to the present invention.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
The purpose of the present invention is to provide a kind of display methods based on palette compressed picture.
Fig. 1 is according to the display methods flow chart based on palette compressed picture of the present invention, as shown in Figure 1, of the invention
The display methods based on palette compressed picture, include the following steps：
Step 101, the color saucer information and color index information of palette compressed picture all pixels are extracted.The tune of png8 formats
Colour table compressed picture is color saucer and color index composition.Color saucer information is used to record the colouring information of pixel, color rope
Fuse is ceased for calling the colouring information on color saucer.One color index information is a byte-sized, compares 32 colors with 4
A byte representation has lacked 4 times；Color saucer information due to recording indexes information color, such benefit be identical color just
It saves.
Step 102, all color saucer information is arranged, is generated in color saucer textures；It, will be identical when being arranged
Color saucer information integration be a color saucer information preserved, to save memory space.
Step 103, all color index information is arranged, is generated in color index textures；Wherein, each color
The size of index information is a byte.
Step 104, the color saucer textures and color index textures generated in load step 102 and 103 respectively.
Step 105, tinter sampling color saucer textures and color index textures quote color saucer according to color index information
Middle color, and generate a pixel color；Color saucer information in color saucer textures does not repeat from each other, color index energy
It enough repeats to quote same color saucer information.
Step 106, include obtaining all colors on a pictures and being shown by all pixels.
The present invention is decomposed into color saucer information and color in compressed picture, by the Pixel Information in the picture of png formats
Index information, and then the picture of png formats is split as a color saucer textures and a color index textures.In the present invention,
The size of one color index is a byte, compares 4 byte representations of existing 32 color, and EMS memory occupation has lacked 4 times；It adjusts
Colour disk is used for the color of recording indexes, and such benefit is that identical color just saves.Then it is puted up with two when load document
Figure load.One puts up figure storage color saucer information, and one puts up figure storage color index information.Then this is read in coloring process
Two put up figure, obtain final color and are shown.
The present invention provides a kind of technology that lossless saving picture occupies in memory, which can save picture and exist
Consumption in memory, and picture quality will not be lost.Using the technology, an equal amount of memory can be loaded into more pictures,
4 times of spaces can be saved compared to uncompressed picture.
One of ordinary skill in the art will appreciate that：The foregoing is only a preferred embodiment of the present invention, and does not have to
In the limitation present invention, although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art
For, still can to foregoing embodiments record technical solution modify, or to which part technical characteristic into
Row equivalent replacement.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all include
Within protection scope of the present invention.
Claims (3)
1. a kind of display methods based on palette compressed picture, includes the following steps：
1）From palette compressed picture color saucer information and color index information；
2）Using color saucer information and color index information, color saucer textures and color index textures are generated respectively；
3）Color saucer textures and color index textures are loaded respectively；
4）Color saucer textures and color index textures are sampled to obtain final color and are shown.
2. the display methods according to claim 1 based on palette compressed picture, which is characterized in that the color index
The size of information is a byte.
3. the display methods according to claim 1 based on palette compressed picture, which is characterized in that the step 4）It is
Color saucer textures and color index textures are sampled using tinter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547767.4A CN108776982A (en) | 2018-05-31 | 2018-05-31 | A kind of display methods based on palette compressed picture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547767.4A CN108776982A (en) | 2018-05-31 | 2018-05-31 | A kind of display methods based on palette compressed picture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108776982A true CN108776982A (en) | 2018-11-09 |
Family
ID=64028137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810547767.4A Pending CN108776982A (en) | 2018-05-31 | 2018-05-31 | A kind of display methods based on palette compressed picture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108776982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110766765A (en) * | 2019-10-17 | 2020-02-07 | 广州博冠信息科技有限公司 | Method and device for detecting art resources |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013297A1 (en) * | 2002-07-18 | 2004-01-22 | Roger Lo | Method for performing color gamut compression |
| CN1555198A (en) * | 2003-12-23 | 2004-12-15 | 无敌科技(西安)有限公司 | Cartoon quick condensing and decondensing method |
| US20070030178A1 (en) * | 2005-08-05 | 2007-02-08 | Microsoft Corporation | Image compression and decompression |
| CN102254337A (en) * | 2011-04-26 | 2011-11-23 | 厦门吉比特网络技术股份有限公司 | Method for changing colours of 2D (Two-Dimensional) animation chartlet |
| CN102523367A (en) * | 2011-12-29 | 2012-06-27 | 北京创想空间商务通信服务有限公司 | Real-time image compression and reduction method based on plurality of palettes |
| CN103209326A (en) * | 2013-03-29 | 2013-07-17 | 惠州学院 | PNG (Portable Network Graphic) image compression method |
| CN103415872A (en) * | 2011-03-09 | 2013-11-27 | 想象技术有限公司 | Compression of a tessellated primitive index list in a tile rendering system |
| CN104077794A (en) * | 2014-06-26 | 2014-10-01 | 广州博冠信息科技有限公司 | Picture staining method and device |
| CN105551069A (en) * | 2015-11-30 | 2016-05-04 | 中国农业科学院棉花研究所 | Method and system for real-time rapid generation of index image |
| CN106056530A (en) * | 2016-06-01 | 2016-10-26 | 腾讯科技（深圳）有限公司 | Method and device for displaying picture content in application |
| CN107257989A (en) * | 2015-03-24 | 2017-10-17 | 英特尔公司 | The palette compression of cluster |
-
2018
- 2018-05-31 CN CN201810547767.4A patent/CN108776982A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013297A1 (en) * | 2002-07-18 | 2004-01-22 | Roger Lo | Method for performing color gamut compression |
| CN1555198A (en) * | 2003-12-23 | 2004-12-15 | 无敌科技(西安)有限公司 | Cartoon quick condensing and decondensing method |
| US20070030178A1 (en) * | 2005-08-05 | 2007-02-08 | Microsoft Corporation | Image compression and decompression |
| CN103415872A (en) * | 2011-03-09 | 2013-11-27 | 想象技术有限公司 | Compression of a tessellated primitive index list in a tile rendering system |
| CN102254337A (en) * | 2011-04-26 | 2011-11-23 | 厦门吉比特网络技术股份有限公司 | Method for changing colours of 2D (Two-Dimensional) animation chartlet |
| CN102523367A (en) * | 2011-12-29 | 2012-06-27 | 北京创想空间商务通信服务有限公司 | Real-time image compression and reduction method based on plurality of palettes |
| CN103209326A (en) * | 2013-03-29 | 2013-07-17 | 惠州学院 | PNG (Portable Network Graphic) image compression method |
| CN104077794A (en) * | 2014-06-26 | 2014-10-01 | 广州博冠信息科技有限公司 | Picture staining method and device |
| CN107257989A (en) * | 2015-03-24 | 2017-10-17 | 英特尔公司 | The palette compression of cluster |
| CN105551069A (en) * | 2015-11-30 | 2016-05-04 | 中国农业科学院棉花研究所 | Method and system for real-time rapid generation of index image |
| CN106056530A (en) * | 2016-06-01 | 2016-10-26 | 腾讯科技（深圳）有限公司 | Method and device for displaying picture content in application |
Non-Patent Citations (1)
| Title |
|---|
| 陈爱军: "《数字图像处理及其MATLAB实现》", 31 July 2008 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110766765A (en) * | 2019-10-17 | 2020-02-07 | 广州博冠信息科技有限公司 | Method and device for detecting art resources |
| CN110766765B (en) * | 2019-10-17 | 2022-07-29 | 广州博冠信息科技有限公司 | Method and device for detecting art resources |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102523367B (en) | Real time imaging based on many palettes compresses and method of reducing | |
| US20210160496A1 (en) | Encoding method, decoding method, encoding/decoding system, encoder, and decoder | |
| CN102821279A (en) | Picture compression method keeping with alpha channel | |
| US20010033286A1 (en) | Method and data arrangement for encapsulating signed over-ranged color image data to accommodate in-range file formats | |
| RU2737507C2 (en) | Method and device for encoding an image of a high dynamic range, a corresponding decoding method and a decoding device | |
| JP6703032B2 (en) | Backward compatibility extended image format | |
| US20060256380A1 (en) | Transparent digital images and method of processing and storing same | |
| US20080273804A1 (en) | Image Transformation | |
| CN102289829A (en) | Method and device for storing and restoring image and system for processing image | |
| CN103209326A (en) | PNG (Portable Network Graphic) image compression method | |
| CN110741623B (en) | Method and apparatus for gamut mapping | |
| CN107257990B (en) | Method and device for converting HDR version of picture into SDR version | |
| CN102833463A (en) | Picture processing method and picture processing equipment | |
| CN108471536B (en) | Alpha channel transmission method and device, terminal device and storage medium | |
| US9392294B2 (en) | Color image data compression | |
| US20180097527A1 (en) | 32-bit hdr pixel format with optimum precision | |
| CN108776982A (en) | A kind of display methods based on palette compressed picture | |
| CN102521847B (en) | Method and device for segmenting bitmap (BMP) image with ultra-high resolution | |
| US20210256734A1 (en) | Texture Compression | |
| US20180139360A1 (en) | Method and device for processing color image data representing colors of a color gamut | |
| CN112653905B (en) | Image processing method, device, equipment and storage medium | |
| US20160155243A1 (en) | Method and device for estimating a color mapping between two different color-graded versions of a picture | |
| CN113223100A (en) | Picture compression and decompression processing method | |
| Zhang | The studies and implementation for conversion of image file format | |
| US20080055319A1 (en) | Apparatus and Method of Conversing Data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181109 |
|
| RJ01 | Rejection of invention patent application after publication |