Image processing model training method and device and medium

Abstract

The invention relates to an image processing model training method and device and a medium. The method comprises: for each training scene in N training scenes, acquiring M frames of long-distance shotimages respectively, wherein N and M are positive integers larger than 1; for each training scene, obtaining a short-distance standard image of the training scene; for each training scene, cutting the M frames of long-distance shot images into images with the same field of view as the short-distance standard image, and aligning the cut M frames of long-distance shot images based on the short-distance standard image; forming a training sample pair of each training scene by the M frames of long-distance shot images and the short-distance standard images after alignment of each training scene, and forming a training sample set by N training sample pairs corresponding to the N training scenes respectively; and training the image processing model based on the training sample set. By the adoption of the method, the digital zoom effect is effectively improved, and meanwhile the purpose of denoising is achieved. By adopting the method, a user can see more clearly when shooting distant characters or other objects.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, and in particular to a training method, device and medium of an image processing model. Background technique [0002] The zoom function is a must-have feature in today's cell phones and cameras. People take photos by zooming in on distant objects, such as wild animals and athletes, to see objects in more detail. Some smartphones even come with two cameras with different zoom levels. This demonstrates the importance of high-quality zoom capabilities to the consumer camera market. Optical zoom is the best choice for image zoom, which can maintain high image quality, but zoom lenses are usually expensive and bulky. Therefore, at present, digital zoom is mainly used for image enhancement. Digital zoom (Digital Zoom) is to increase the area of ​​each pixel in the picture through the processor in the mobile phone or digital camera, so as to achieve the purpose of magnification. H...

AI Technical Summary

Problems solved by technology

However, most current digital zoom methods simply upsample a cropped area of ​​camera sensor input, which produces blurry output

Acquiring high-quality images of distant objects without expensive optics remains a challenge

Images