Worked on the dials/dials repository to address a bug in the spot-finding pipeline related to mask-aware erosion. Focused on improving the algorithm by modifying the erosion check to exclude masked pixels, treating them as true in the dispersion threshold mask. This adjustment prevented masked pixels from causing incorrect spot erasure and misclassification of strong pixels near masked regions, thereby enhancing the reliability of spot detection. The solution was implemented in C++ and leveraged skills in algorithm development and image processing. The work demonstrated careful attention to edge cases in scientific image analysis, resulting in a targeted and robust bug fix.