Hyperspectral Images with Illumination Probes from Portugal, 2002-2003

30 hyperspectral radiance images of natural scenes from the Minho region of Portugal, acquired in 2002 and 2003. Each image includes embedded neutral probe spheres to estimate local illumination spectra and is accompanied by a rendered color image and scene information. The dataset was created by David Foster for research published in Vision Research in 2016.

Use Cases

• Analyzing spatial variations in local illumination color based on embedded neutral probe spheres.
• Developing or testing algorithms for spectral reflectance estimation under natural lighting conditions.
• Studying the spectral characteristics of natural scenes in Portugal under clear and overcast skies.
• Comparing rendered color images with the underlying hyperspectral radiance data.

Strengths

• Dataset contains 30 distinct hyperspectral images.
• Images have a spectral range from 400 nm to 720 nm at 10 nm intervals.
• Each scene includes geographic location information.
• Dataset size is 9.5 GB, indicating substantial data volume.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Padding artefacts and chromatic artifacts are present in some images due to acquisition issues.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

David Foster

Collection Method

Acquired via hyperspectral imaging.

Time Range

2002-2003

Geography

Minho region, Portugal