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Method and device for coding and decoding image in smart mobile terminal LK

An intelligent mobile terminal, codec technology, applied in instruments, electrical digital data processing, etc., can solve problems such as data loss and poor user experience, and achieve the effect of speeding up display, improving user experience, and overcoming the limitation of LOGO partition capacity and space

Inactive Publication Date: 2014-11-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Modifying the size of the disk partition requires formatting the entire file system. At this time, the data saved by the user in the storage system will be lost, which is a very bad user experience.

Method used

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  • Method and device for coding and decoding image in smart mobile terminal LK
  • Method and device for coding and decoding image in smart mobile terminal LK
  • Method and device for coding and decoding image in smart mobile terminal LK

Examples

Experimental program
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Embodiment 1

[0077] This embodiment discloses a method for encoding and decoding pictures in an intelligent mobile terminal LK. By encoding and decoding the boot LOGO picture and decoding the picture in the LK, the limitation of the capacity space of the LOGO partition is overcome, and the disk space is saved. The method is applied to include In intelligent mobile terminals such as mobile phones, notebook computers, tablet computers and PDAs.

[0078] like figure 1 As shown in the flow chart of the method for encoding and decoding pictures in a kind of intelligent mobile terminal LK of the present invention, the specific steps of the method are as follows:

[0079] Step 1. Compress all the pictures that need to be displayed on the boot interface. For the compression algorithm, see figure 2 .

[0080] [Algorithm idea: 1. First open the original image file original.raw in raw image format that needs to be compressed. 2. Read one byte of data, store it in the character variable new, and s...

Embodiment 2

[0109] This embodiment discloses a device for encoding and decoding pictures in an intelligent mobile terminal LK, which is applied to an intelligent mobile terminal device. The intelligent mobile terminal includes a mobile phone, a notebook computer, a tablet computer, and a handheld Internet device, and includes the following devices:

[0110] 1. An original picture compression device, which uses a compression algorithm to compress all original pictures that need to be displayed on the boot interface, wherein the original pictures are pictures in raw format.

[0111] The device specifically includes the following devices:

[0112] Image compression initialization device, which is used to open the original image in raw format that needs to be compressed in read-only mode, define the counter variable count and assign the initial value to 0, define the character variable old and assign the initial value to 0, define the character variable new and assign the initial value to 0. ...

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Abstract

The invention discloses a method for coding and decoding image in a smart mobile terminal LK. The method is applied to smart mobile terminals. The method comprises the following steps that (1) all original images which need to be displayed on a start-up interface are compressed through a compression algorithm; (2) a data structure containing the resolution ratio and size information of the compressed images is stored and written into a file of a specified format together with the compressed image data; (3) the file of the specified format is written into a LOGO partition; (4) as the LK is started, the file of the specified format in the LOGO partition is read; (5) LOGO images are uncompressed through an uncompressing algorithm; (6) the uncompressed images are displayed on the start-up interface. According to the method, the start-up LOGO images are coded and decoded in the LK, the restriction on the capacity and space of the LOGO partition can be remarkably broken, disk space is saved, display of the start-up LOGO images are accelerated, and user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of smart mobile terminal application technology, in particular to a method and device for encoding and decoding pictures in a smart mobile terminal LK. Background technique [0002] In order to better display the brand image, each mobile phone manufacturer will display its own company LOGO when the mobile phone is turned on, and usually the loading of the LOGO is completed in the LK during the entire starting process of the mobile phone. Because LK is just a small kernel (little kernel), it does not have the ability to decode PNG, JPEG, BMP and other image formats. In LK, images are stored in RAW format. A picture in RAW format is an uncompressed original picture, and a pixel is directly represented by three RGB color components. When the screen resolution is relatively small, the LOGO picture is directly saved in LK, but when the screen resolution increases to 1920*1080, the size of a single pictur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
Inventor 杨新勤
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD