ShyFoo/CountHallu-dataset-ToyShape

CountHalluSet — ToyShape Synthetic dataset from Counting Hallucinations in Diffusion Models (arXiv:2510.13080). Part of CountHalluSet, a suite with well-defined counting criteria used to measure counting hallucination — a diffusion model generating the wrong number of instances, even for patterns absent from its training data. What's inside 128×128 RGB images of non-overlapping white shapes on a black background. Each image holds 1–3 shapes drawn from {triangle… See the full description on the dataset page: https://huggingface.co/datasets/ShyFoo/CountHallu-dataset-ToyShape.