Dataset of thousands of hcaptcha images.
Collected using https://github.com/orlov-ai/hcaptcha-collector
Manually labeled.
Last updated: April 2022.
airplane: 503
bicycle: 375
boat: 662
motorbus: 317
motorcycle: 733
seaplane: 355
train: 304
truck: 819
(128px, 128px): 3963; (144px, 144px): 105
You can use it for educational purposes (fair use). They probably result of a GAN neural network anyways.