This document discusses a study on estimating hemoglobin levels using a digital camera. The study aims to develop a low-cost screening device with an accuracy of ±1g/dl that can be used in remote areas. Experiments were conducted using a WHO hemoglobin color scale under natural light to determine optimal lighting and camera settings. Histograms of red, green, and blue color channels from regions of interest in each hemoglobin band were analyzed using metrics like Bhattacharya coefficient and Euclidean distance to quantify separation between bands. The results aimed to find settings where histograms and clusters of different hemoglobin bands were well separated to help distinguish different hemoglobin values when analyzing blood samples.