Image sample generation method and device based on partial shadow special effect

Abstract

The invention discloses an image sample generation method and device based on a partial shadow special effect, computer equipment and a storage medium, and relates to an artificial intelligence technology, and the method comprises the steps: calling a contrast brightness adjustment algorithm, carrying out contrast brightness adjustment of an input image, and obtaining a corresponding dark image and a corresponding bright image; obtaining an original picture size of the input picture, and initializing according to the original picture size to obtain an initial fuzzy forward dodging picture so as to perform fuzzy forward dodging on the initial fuzzy forward dodging picture to obtain a current fuzzy forward dodging picture; performing Gaussian blur on the current fuzzy forward dodging pictureto obtain a Gaussian blur picture; and synthesizing according to the dark picture and the bright picture corresponding to the input picture and the Gaussian blur picture to obtain an image sample corresponding to the input picture. According to the invention, expansion of the image sample of the input picture based on the local shadow special effect is realized, the acquisition difficulty of acquiring the identity card picture sample is reduced, the expanded image sample is close to a sample shot in a real scene, and the problem of small samples is solved.

Description

technical field [0001] The present invention relates to the technical field of image processing of artificial intelligence, in particular to a method, device, computer equipment and storage medium for generating image samples based on local shadow special effects. Background technique [0002] In the ID card authentication project, it is very difficult to collect samples of ID cards. This is mainly because ID cards are objects that involve personal privacy. Due to factors such as security and privacy, collection is very difficult. Therefore, when doing algorithm research related to ID cards, there is an extreme lack of ID card picture samples, which makes it more difficult to obtain sample data for training ID card recognition models. Contents of the invention [0003] The embodiment of the present invention provides an image sample generation method, device, computer equipment, and storage medium based on partial shadow special effects, aiming to solve the problem of extr...

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Problems solved by technology

[0003] The embodiment of the present invention provides an image sample generation method, device, computer equipment, and storage medium based on partial shadow special effects, aiming to solve the problem of extreme lack of ID card image samples in the process of training ID card recognition models in the prior art, resulting in training The problem of increased difficulty in obtaining sample data for the ID card recognition model

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