Image splitting method and device, image loading method and device

Abstract

A picture splitting method includes: acquiring an original picture; splitting the original picture according to a preset size, to obtain partial pictures; removing a redundant partial picture in the partial pictures; generating restoration information of the removed partial picture according to a retained partial picture; and storing the retained partial picture and the restoration information. With the foregoing method, an original picture is split into partial pictures, a redundant partial picture is removed, restoration information of the removed partial picture is generated according to a retained partial picture, and the retained partial picture and the restoration information are stored. The file size of the retained partial picture is smaller than the file size of the original picture, which can reduce a storage space, and when the original picture needs to be loaded, it is feasible to load the retained partial picture only, and the removed partial picture is restored according to the restoration information, which can reduce a memory space occupied by picture loading.

Description

technical field [0001] The present invention relates to graphics processing technology, in particular to a picture splitting method and device, and to a picture loading method and device. Background technique [0002] In order to achieve a certain visual effect and adapt to high-definition screens with higher and higher resolutions, the file size of pictures is getting larger and larger. Especially for pictures that require transparency, the file size will be exacerbated. For example, for a screen with a common size of 1024*768, if the image uses RGBA modules, and each color value is represented by 8 bits, the file size of a full-screen image can reach 1024*768*4B=3MB. If the number of representation bits for each color channel increases, the file size of the picture will be larger. Even if the compression technology is used, the file size of the compressed picture is still relatively large in order not to damage its transparency and distortion. [0003] When the current a...

AI Technical Summary

Problems solved by technology

[0003] When the current application program loads pictures, it generally loads the picture into the memory at one time by using the overall loading method, which requires a large amount of memory to store the picture; and the operating system often has certain restrictions on the memory occupied by the application program, such as android, iOS operating system, etc.

When the operating system receives a memory warning, applications with large memory consumption may not operate smoothly, and even the process or thread of the application may be killed by the system

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