Image generation method and image generation device

The invention discloses an image generation method and an image generation device. The method comprises the following steps: reading a first image from a storage circuit; setting an image mask on the first image, wherein the image mask covers a part of image area of the first image; the image mask is moved randomly to change the coverage range of the image mask in the first image, and the coverage range of the image mask does not exceed the edge of the first image; acquiring a second image from the first image according to the moved image mask; and storing the second image to the storage circuit. Thus, a plurality of similar but different images (i.e., second images) can be randomly generated from a small number of images (i.e., first images). 本案揭示一种图像产生方法与图像产生装置。所述方法包括：从存储电路中读取第一图像；在第一图像上设置图像遮罩，其中图像遮罩覆盖第一图像的一部分图像区域；随机移动图像遮罩，以改变图像遮罩在第一图像中的覆盖范围，且图像遮罩的覆盖范围不超出第一图像的边缘；根据移动后的图像遮罩从第一图像中获取第二图像；以及将第二图像存储至存储电路。由此，即可根据少量的图像(即第一图像)来随机产生类似但又各不相同的多个图像(即第二图像)。