CP-AnemiC (A Conjunctival Pallor) Dataset from Ghana

For conjunctival image acquisition, the lower eyelid was gently retracted using the thumb while the index finger was used to stabilize the eyelid, thereby exposing the palpebral conjunctiva for imaging. All images were captured by trained laboratory personnel under ambient natural-light conditions using the standard 12-megapixel (12 MP) camera integrated into the electronic tablet. The camera flash/spotlight was disabled during image acquisition to minimize glare, reflections, and artificial illumination that could introduce variations in image quality and potentially affect the performance of subsequent image-processing and classification models.

Following image acquisition, the region of interest (ROI) corresponding to the conjunctival area was extracted through a preprocessing procedure involving the Triangle Thresholding Algorithm and an entropy-based grayscale image-processing technique. This procedure was used to isolate the relevant conjunctival region while minimizing irrelevant image background and improving the consistency of the images used for subsequent analysis.

Disclaimer This dataset is provided strictly for academic and research purposes and shall not be used for commercial purposes without appropriate authorization. Although reasonable measures were undertaken to ensure the quality, integrity, and anonymization of the dataset, users should be aware that minor anomalies, inconsistencies, or apparent image duplications may have occurred during image preparation, preprocessing, anonymization, file conversion, or dataset uploading.

Researchers using the dataset are therefore encouraged to conduct appropriate quality-control checks before undertaking analysis or drawing conclusions from the data.