Image processing method, image processing device and display device

An image processing device, comprising:

• an original gray scale value acquiring module configured to acquire an original gray scale value of each of pixel points of a to-be-displayed image, wherein the pixel points correspond to first type pixels and second type pixels arranged in rows and columns on a display panel one by one, and the first type pixels and the second type pixels are disposed alternately in a row direction and a column direction;
• a high-frequency pixel point judging module configured to judge whether the pixel point is a high-frequency pixel point or not according to the original gray scale value;
• and
• a gray scale value output module configured to, if the pixel point is not the high-frequency pixel point, output a first gray scale value greater than the original gray scale value corresponding to the pixel point when the pixel point corresponds to the first type pixel;
• and output a second gray scale value smaller than the original gray scale value corresponding to the pixel point when the pixel point corresponds to the second type pixel, so that the first type pixel and the second type pixel display the to-be-displayed image using the corresponding first gray scale value and the corresponding second gray scale value, respectively.

A display method, comprising:

• acquiring original gray scale values corresponding to pixels;
• calculating an absolute value of a difference between the gray scale values of the pixel and its neighboring pixels;
• outputting the original gray scale value to the pixel if the absolute values of the differences between the gray scale values of the pixel and its neighboring pixels are smaller than a threshold value;
• and
• judging whether the pixel is a first type pixel or a second type pixel if the absolute values of the differences between the gray scale values of the pixel and its neighboring pixels are greater than the threshold value, outputting a first gray scale value if the pixel is the first type pixel, and outputting a second gray scale value if the pixel is the second type pixel.