A real-time image extraction method

Abstract

The application discloses a real-time image extraction method, which relates to the technical field of image processing. The main technical solution of this application is: start UE4 acquisition client, create main thread and rendering thread; main thread: create acquisition window, load scene acquisition plug-in, and create rendering hardware interface for the current window; rendering thread: obtain backup cache data; Obtain the backing buffer data from the rendering thread by calling the rendering hardware interface, and use the backing buffer data to render the acquisition window screen in the main thread. By adopting the technical solution of the application, the efficiency of image collection can be improved, and program images can be output in real time and efficiently; moreover, it is convenient to run the collection function on all platforms without being restricted by the development platform.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a real-time image extraction method. Background technique [0002] In UE4 (Unreal Engine 4, Unreal Engine 4), the existing method of image acquisition or interception of the program screen is executed by issuing the Shot / HighResShot command through the console. When the game is running in windowed mode, the command is based on the screen resolution size Generate screenshots. Since the main thread will be blocked when reading the pixels displayed on the viewport into the pre-allocated memory until the rendering thread is synchronized, the screen will experience obvious freezes at this time, which will affect the operation and display visual effects. [0003] Secondly, to run console commands in Unreal Engine, you must be in the editor or in the running program packaged into the development version, and the relevant collection instructions cannot be executed in ...

AI Technical Summary

Problems solved by technology

Since the main thread will be blocked when reading the pixels displayed on the viewport into the pre-allocated memory until the rendering thread is synchronized, the screen will be obviously stuck at this time, which will affect the operation and display visual effects

[0003] Secondly, to run console commands in Unreal Engine, it must be in the editor or in the running program packaged into the development version, and the relevant collection instructions cannot be executed in the development version environment

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