CompoVIS / README.md
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---
configs:
- config_name: Color
data_files: data/CLEVR_mini_attribution_color.json
- config_name: Count
data_files: data/CLEVR_mini_attribution_count.json
- config_name: Material
data_files: data/CLEVR_mini_attribution_material.json
license: mit
size_categories:
- 10K<n<80K
---
# CLEVR-Per Dataset README
## Overview
**CLEVR-Per** is a cross-modal dataset integrating images, baseline (true) captions, and permuted (false) captions to facilitate research on "compositional understanding" tasks in vision-language models.
The dataset is designed to explore VLMs' ability to understand semantic changes in vision and textual entities by swapping attributes vocabulary, creating different semantic expressions.
CLEVR-Per contains three subsets: **ColPer** (color semantics permutation), **CntPer** (quantity semantics permutation), and **MatPer** (material semantics permutation), each focusing on specific types of semantic transformations.
## Supported Tasks
**CLEVR-Per** is suitable for the following tasks:
- **Compositional Understanding Evaluation**: Assessing the model's ability to understand semantic changes. The model selects the most relevant description from baseline caption and permuted caption for a given image, testing its compositional understanding.
- **Adversarial Sample Generation**: Researchers can generate diverse adversarial samples using baseline and permuted caption for contrastive training, improving the model's ability to detect erroneous semantics.
<figure>
<img src="./introduction.png" alt="compositional understanding" style="width: 700px;" >
<figcaption>Fig 1. Compositional Understanding: Clip model chose the disturbed incorrect caption, confused in understanding the relationship between entities and attributes.</figcaption>
</figure>
## Data Source and Statistics
The **CLEVR-Per** dataset is derived from **CLEVR** [1], with all baseline and permuted captions generated based on predefined rules and templates.
### Dataset Statistics and Example
| Subset | Number of Images | Baseline Captions | Permuted Captions |
|---------|------------------|--------------------------|-----------------------|
| **ColPer** | 4000 | 16905 | 16905 |
| **CntPer** | 4000 | 7292 | 7292 |
| **MatPer** | 4000 | 10589 | 10589 |
### Data Structure
| Field Name | Data Type | Description |
|--------------------|-------------|--------------------------------------------|
| **image_id** | string | Identifier for the image sample |
| **image_path** | string | Path or URL of the image sample |
| **obj1_name** | string | Name of the first entity in caption |
| **obj2_name** | string | Name of the second entity in caption |
| **true_caption** | string | Baseline caption describing the image |
| **false_caption** | string | Caption formed by swapping attributes in the baseline caption |
| **attributes** | list | List of attributes related to both entities |
| **id** | int | Unique Identifier for the sample |
### Example
| Field Name | Data Type | Description |
|--------------------|-------------|--------------------------------------------|
| **image_id** | string | `000001` |
| **image_path** | string | `CLEVR_mini_000001.png` |
| **obj1_name** | string | `sphere` |
| **obj2_name** | string | `cube` |
| **true_caption** | string | `"yellow sphere and purple cube."` |
| **false_caption** | string | `"purple sphere and yellow cube."` |
| **attributes** | list | `["yellow", "purple"]` |
| **id** | int | `100` |
## Build Your Dataset with Simple Code
Using simple code, you can build your richer and more diverse negative sample dataset obased on CLEVR-Per.
For example:
- "is This a test true caption"
- "caption This is a true test"
- "a test This is true caption"
```python
import random
def generate_negative_samples(true_caption, num_samples=3):
"""
Efficiently generates negative samples by shuffling the word order of a given caption.
Args:
true_caption (str): The original caption.
num_samples (int): The number of negative samples to generate (default: 3).
Returns:
list: A list of generated negative samples.
"""
words = true_caption.split()
word_count = len(words)
# Limit the number of unique permutations to the factorial of word count if needed
max_unique_permutations = min(num_samples, len(set(random.sample(words, word_count)) for _ in range(num_samples)))
# Use a set to avoid duplicates
negative_samples = {
' '.join(random.sample(words, word_count))
for _ in range(max_unique_permutations * 10) # Extra sampling to reduce duplicates
}
# Convert to list and limit the final count
return list(negative_samples)[:num_samples]
# Example usage
true_caption = "This is a test true caption"
negative_samples = generate_negative_samples(true_caption)
print(negative_samples)
```
For example:
| ![Image 1](./shuffled_image_1.png) | ![Image 2](./shuffled_image_2.png) | ![Image 3](./shuffled_image_3.png) |
|-------------------------|-------------------------|-------------------------|
```python
import random
from PIL import Image
import os
def generate_shuffled_images(image_path, grid_size=(4, 4), num_images=3, output_dir="shuffled_images"):
"""
Efficiently generates multiple images by shuffling blocks of the original image.
Args:
image_path (str): Path to the input image.
grid_size (tuple): Number of rows and columns to split the image (e.g., (4, 4)).
num_images (int): Number of shuffled images to generate.
output_dir (str): Directory to save the generated images.
Returns:
None
"""
# Load the image and determine dimensions
image = Image.open(image_path)
img_width, img_height = image.size
rows, cols = grid_size
block_width, block_height = img_width // cols, img_height // rows
# Ensure output directory exists
os.makedirs(output_dir, exist_ok=True)
# Pre-split the image into blocks (avoiding redundant operations)
blocks = [
image.crop((c * block_width, r * block_height, (c + 1) * block_width, (r + 1) * block_height))
for r in range(rows) for c in range(cols)
]
# Generate shuffled images
for i in range(num_images):
random.shuffle(blocks) # In-place shuffle for better efficiency
shuffled_image = Image.new('RGB', (img_width, img_height))
for idx, block in enumerate(blocks):
r, c = divmod(idx, cols)
shuffled_image.paste(block, (c * block_width, r * block_height))
# Save the shuffled image
output_path = os.path.join(output_dir, f"shuffled_image_{i + 1}.png")
shuffled_image.save(output_path)
print(f"Generated: {output_path}")
# Example usage
input_image_path = "/mnt/data/2276b7b0-17f8-458c-bbc0-24abf62ab34b.png"
generate_shuffled_images(image_path=input_image_path, grid_size=(4, 4), num_images=3)
```
## References
[1]. **CLEVR**. CLEVR: A Diagnostic Dataset for Compositional Language and Elementary Visual Reasoning. *Justin Johnson*, 2017. https://cs.stanford.edu/people/jcjohns/clevr/.
### If you use this dataset, please cite it as follows. My homepage https://tongli97.github.io/.
<pre>
@misc{cleverper_dataset,
author = {Tong Li, Guodao Sun*, Xueqian Zheng, Qi Jiang, Wang Xia, Xu Tan, Haidong Gao, Jingwei Tang, Yunchao Wang, Haixia Wang, Ronghua Liang},
title = {CompoVis: Is Cross-modal Semantic Alignment of CLIP Optimal? A Visual Analysis Attempt},
year = {2026},
publisher = {IEEE Transactions on Multimedia},
DOI = {10.1109/TMM.2026.3660158}
howpublished = {\url{https://huggingface.co/datasets/guodaosun/CompoVIS}},
}
</pre>
## Contact Information
- **Author**: Tong Li (李童)
- **Email**: litong@zjut.edu.cn
- **Project Page**: https://tongli97.github.io/