IRIS IMAGE LOCAL ENHANCEMENT METHOD, DEVICE, EQUIPMENT AND STORAGE MEDIUM

Disclosed in the invention are an iris image local enhancement method, device, equipment and a storage medium. The iris image local enhancement method comprises steps of: acquiring an iris image set; calculating contrasts of iris images and sorting the iris images according to a sequence from a large contrast to a small contrast to obtain an initial iris sequence; obtaining a preset number of iris images from the initial iris sequence according to the sequence from a large contrast to a small contrast to form an initial iris set; carrying out local enhancement processing on initial iris images by using an optimized contrast algorithm to obtain a first enhanced iris image set; and sharpening first enhanced iris images by using a Laplacian operator to obtain a second enhanced iris image set. According to the iris image local enhancement method, the overall contrast of the initial iris images is improved, internal details are enhanced, highlight generated during an enhancement process is suppressed, the enhancem