How many images do you need to train a neural network?
You need 1,000 representative images for each class.
What’s crucial is that the training images are as close as possible to the inputs that the model will see when it’s deployed.
根据作者经验，distorted copies are not worth quite as much as new original images when it comes to overall accuracy, but if you only have a few images it’s a great way to boost the results and will reduce the overall number of images you need.
