Image processing method, device, electronic device and storage medium

Abstract

An embodiment of the present invention provides an image processing method, device, electronic equipment, and storage medium, wherein the method includes: determining the background color of the image to be processed; determining the foreground subject in the image to be processed according to the background color The transparency of the area and the transparency of the foreground edge area; according to the transparency of the foreground subject area and the transparency of the foreground edge area, the foreground transparency of the image to be processed is calculated; according to the transparency of the foreground, the fusion of the image to be processed and the target The background image gets the composite image. Therefore, the transparency of the foreground main body area and the foreground edge area can be estimated separately, and the accuracy of the two can be considered, the quality of the matting image is improved, and the parameter adjustment is easier.

Description

technical field [0001] The invention relates to the technical field of computer graphics, in particular to an image processing method, device, electronic equipment and storage medium. Background technique [0002] Virtual background technology originates from the production of special effects in the film industry. By using virtual resources with various special effects and props to replace the original monotonous background picture, it can significantly improve the audience's visual experience and create a good performance atmosphere. It is widely used in fields such as production and live TV broadcasting. With the popularity of short videos and live video broadcasts, virtual backgrounds are becoming more and more popular as a means of supplementing and enhancing content. The virtual background relies on the background matting and synthesis technology. The photographer uses a background of a specific color (such as green) to shoot, uses the matting algorithm to obtain the f...

AI Technical Summary

Problems solved by technology

[0004] Due to the unstable environment of green screen shooting (such as uneven background color, unstable lighting, dark shadow areas, camera imaging noise, etc.), blurred foreground motion, and difficulty in accurately estimating transparency in soft foreground areas such as semi-transparent or silky areas, based on a single The method of transparency estimation is usually difficult to take into account the above-mentioned problems at the same time, resulting in inaccurate transparency estimation that affects the quality of matting, and related parameters are difficult to adjust and poor in operability

Moreover, the background synthesis technology is based on the estimated transparency. The existing synthesis technology usually directly adds the foreground and new background pixels according to the transparency weight coefficient. It will bring a large visual difference, resulting in abrupt and unnatural visual effect of composite edges

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