Image Seed Control
FooocusPlus and other generative AI interfaces typically generate images using a reverse diffusion process. This process starts with an image composed of random noise that is intelligently refined into a coherent image. The initial noisy image is generated using a random noise generator and that noise generator must be seeded with a numerical value.
Using the same prompt (including styles) and the same image processing parameters, a particular seed value will ultimately produce an identical image. Basic image diversity - the ability to produce a variety of images - is introduced by starting with a different seed value, even while the prompt and all the other processing parameters remain the same.
To maximize diversity, it is important that the seed value is chosen in a truly random way. While personal computers typically use pseudo-random number generators that do not actually achieve perfect randomness, they are random enough for the generative process.
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