IMAGE ENHANCEMENT METHOD AND DEVICE

摘要

The present invention disclose an image enhancement method, including: calculating a central response value of a target pixel based on an original pixel value of the target pixel; calculating a first total suppression value of the target pixel, where the values of suppression to the target pixel from the neighborhood pixels refer to values representing suppression effects imposed by the neighborhood pixels on the target pixel; and when the central response value is greater than the first total suppression value, subtracting the first total suppression value from the central response value, to obtain a difference, and using the difference as a pixel value of the target pixel after image enhancement; or when the central response value is less than the first total suppression value, using a value 0 as a pixel value of the target pixel after image enhancement.

主权项

1. An image enhancement method, comprising:
calculating a central response value of a target pixel based on an original pixel value of the target pixel, wherein the central response value is greater than the original pixel value; calculating a first total suppression value of the target pixel, wherein the first total suppression value is the sum of values of suppression to the target pixel from all neighborhood pixels of the target pixel, the neighborhood pixels are specified as neighborhood pixels of the target pixel in advance, and the values of suppression to the target pixel from the neighborhood pixels refer to values representing suppression effects imposed by the neighborhood pixels on the target pixel; and when the central response value is greater than the first total suppression value, subtracting the first total suppression value from the central response value, to obtain a difference, and using the difference as a pixel value of the target pixel after image enhancement; or when the central response value is less than the first total suppression value, using a value 0 as a pixel value of the target pixel after image enhancement.