Patent ID: 9704225
Date: 2017-07-11
CPC Classifications: G06T

Claim:
1. An image enhancement method comprising: obtaining, by a processor, a central response value of a target pixel based on an original pixel value of the target pixel, obtaining, by the processor, a first total suppression value of the target pixel, wherein the first total suppression value is a first sum that is a sum of values of suppression to the target pixel from all neighboring pixels of the target pixel, the neighboring pixels are specified as neighboring pixels of the target pixel in advance, and the values of suppression to the target pixel from the neighboring pixels refer to values representing suppression effects imposed by the neighboring pixels on the target pixel, when the central response value is greater than the first total suppression value, obtaining, by the processor, as a pixel value of the target pixel after image enhancement, a difference obtained by excluding the first total suppression value from the central response value; and when the central response value is less than the first total suppression value, obtaining, by the processor, a value of 0 as the pixel value of the target pixel after image enhancement.