Twice exposure fusion method based on local energy gradient operator

摘要: The invention relates to the technical field of image fusion, and particularly a twice exposure fusion method based on local energy gradient operator. Through defining each sub block source image, measurement function any point in related central coordinates is determined, pixel gray level fused formed, high-dynamic range further fused. problem imaging difference caused by over insufficient during process high-light ratio surface same object solved. simple, convenient effective, practicality strong, an under with values near lowest highest are suppressed filtered different degrees, brightness improved, details more distinct. Due effective points area high contrast increased, void reduced, average distance deviation precision greatly improved.