Image explanations


❓ What is this?

This collection of visual explanations is produced by MAI-BIAS using the FaceX library to explain how face attribute classifiers make decisions. It evaluates 19 facial regions such as eyes, nose, mouth, hair, and skin, showing which areas influence predictions the most.


Rather than analyzing images one by one, FaceX aggregates activations across the dataset to reveal common patterns. It highlights high-impact regions and patches, helping identify potential biases and ensuring greater transparency in how the model interprets faces.

❗ Summary

FaceX produces heatmaps where blue marks less important regions and red marks highly influential regions. These maps answer the question: "Where does the model focus?". High-impact patches provide further detail on "What visual features trigger this focus?".


By combining regional importance with patch-level analysis, the report helps spot possible biases in model reasoning — for example, whether the classifier over-relies on irrelevant features like accessories instead of actual facial attributes.


Facex Plots

Facex Heatmap

Heatmap Plot

High Impact Patches

Region: skin

Patch Plot for Region: skin

Region: u_lip

Patch Plot for Region: u_lip

Region: l_lip

Patch Plot for Region: l_lip

Region: hair

Patch Plot for Region: hair

Region: l_ear

Patch Plot for Region: l_ear

Region: r_ear

Patch Plot for Region: r_ear

Region: nose

Patch Plot for Region: nose

Region: mouth

Patch Plot for Region: mouth

Region: l_brow

Patch Plot for Region: l_brow

Region: r_brow

Patch Plot for Region: r_brow

Region: l_eye

Patch Plot for Region: l_eye

Region: r_eye

Patch Plot for Region: r_eye

Region: neck

Patch Plot for Region: neck

Region: neck_l

Patch Plot for Region: neck_l

Region: cloth

Patch Plot for Region: cloth

Region: background

Patch Plot for Region: background