Comparative analysis of the performance of HE, BBHE, and CLAHE histogram operators on synthetic fundus images using contrast and brightness metrics. Perspect. Math. Appl. [Internet]. 2026 Jun. 20 [cited 2026 Jun. 20];2(01):56-6. Available from: https://jurnal.kreasipustaka.com/index.php/permata/article/view/28