Light painting implementation method, light painting implementation device and shooting equipment

Abstract

The invention discloses a light painting implementation method, a light painting implementation device and shooting equipment. The method includes: preprocessing a plurality of frames of shot images; acquiring a pixel value of each pixel point of each frame of processed image; as for each pixel point, respectively calculating a pixel difference value of every two adjacent frames of images; determining each pixel point as a light source point or a background pixel point according to obtained pixel difference values and a preset light source point threshold; eliminating weak light source points in a preset distance searching range of each light source point to decrease pixel values of the background pixel points, wherein the distance searching range is set according to image sizes in an image 2D (two-dimensional) space after imaging. By distinguishing of the light source points and the background pixel points and decreasing of the pixel values of the background pixel points, light track and background comparison effects are improved, image background luminance is reduced, night light painting effects are achieved in daytime high-luminance scenes, and accordingly light painting application scenes are expanded, and user experience in shooting is improved.

Description

technical field [0001] The present invention relates to field photography technology, in particular to a method, device and photographing equipment for realizing light painting photography. Background technique [0002] Light painting photography is a simple yet creative and surprising photography technique. Light painting photography needs at least two people to cooperate with each other to complete, so it is more varied and interesting. It is mainly a photographic art method that uses the movement of the light source to enhance the environment or the subject. The light source moves within a period of time, and the photosensitive element of the camera evenly records the light at each unit moment, thereby recording the light source movement track of the entire picture. Light painting photography can be done indoors, at night, and even in some dim light environments where it is impossible to take pictures at all. [0003] In order to highlight the expressive ability of lig...

AI Technical Summary

Problems solved by technology

[0003] In order to highlight the expressive ability of light trajectory, at present, light painting photography needs to be carried out in scenes with low light. In scenes with relatively bright light, it is impossible to capture the effect of clear contrast of light trajectory.

That is to say, at present, the application scenarios of light painting photography are limited to night or dimly lit scenes, so if the user finds a good shooting scene in daytime or brightly lit scenes, it is impossible to record the light painting effect at that time, which will undoubtedly reduce the user shooting experience

Images