The embodiment of the invention belongs to the technical field of
computer graphics, and relates to an
image noise reduction method and device,
computer equipment and a medium thereof.The method comprises the steps that a rendering video
stream is obtained, the rendering video
stream comprises multiple frames of rendering images, and each frame of rendering image comprises multiple pieces of layer information; and performing
noise reduction synthesis
processing on each
image layer information in each frame of rendered image to obtain a pre-
noise-reduced rendered image, obtaining a target rendered image, an adjacent frame of rendered image of the target rendered image and a target object existing in the target rendered image and the adjacent frame of rendered image from the pre-
noise-reduced rendered image, and according to the position of the target object, obtaining the target rendered image according to the position of the target object. According to the method, the color value of the pixel point of the target object in the target rendering image is adjusted according to the color value of the pixel point of the target object in the target rendering image so as to obtain the denoised target rendering image, on one hand, reduction of denoising errors of multiple frames of rendering images in the concentrated denoising process is facilitated, on the other hand,
multiplexing of inter-frame information is achieved, and the denoising quality and denoising efficiency of the rendering images are improved.