Image processing apparatus and image processing method

摘要

An image processing apparatus and an image processing method are provided. A storage unit of the image processing apparatus stores an image and a piece of intensity statistical information of the image. The piece of intensity statistical information records that the image has a first number of pixels having a first intensity value, a second number of pixels having a second intensity value, and a third number of pixels having a third intensity value. A micro-processing unit of the image processing unit calculates a centralization degree of the second intensity value in the image according to the first number, the second number, and the third number. If the centralization degree is greater than a threshold, the micro-processing unit adjusts the intensity value of a pixel having the second intensity value in the image according to the second intensity value and the intensity value of the at least one neighboring pixel of the pixel.

主权项

1. An image processing apparatus, comprising:
a memory device, being configured to store an image and a piece of intensity statistical information of the image, wherein the piece of intensity statistical information records that the image has a first number of pixels having a first intensity value, a second number of pixels having a second intensity value, and a third number of pixels having a third intensity value, the first intensity value is smaller than the second intensity value, the third intensity value is greater than the second intensity value, and the second number is greater than zero; and a micro-processor, being electrically connected to the memory device and configured to calculate a centralization degree of the second intensity value in the image according to the first number, the second number, and the third number, wherein when the micro-processor determines that the centralization degree is greater than a threshold, the micro-processor then calculates an adjustment value for a pixel having the second intensity value in the image according to the second intensity value and an intensity value of at least one neighboring pixel of the pixel, and adjusts the second intensity value of the pixel to a fourth intensity value according to the adjustment value, and wherein when the micro-processor determines that the centralization degree is not greater than the threshold, the pixels having the second intensity value in the image are not adjusted.