Commonly used test image sets

1. What is a good image dataset?
2. What are test images?

What is a good image dataset?

CIFAR-10 & CIFAR-100

This dataset has 50000 training images and 10000 test images. The classes are mutually exclusive, without any overlaps. CIFAR-100 consists of 100 classes containing 600 images each. There are 500 training images and 100 testing images per class.

What are test images?

TESTIMAGES — Large collection of sample images designed for analysis and quality assessment of different kinds of displays (i.e. monitors, televisions and digital cinema projectors) and image processing techniques.