Image processing method, image processing device, display device and storage medium

A method for processing a display image in an image display region, wherein a part of the image display region or all of the image display region is a movable region, and the method for processing the display image comprises:

• in a case where the movable region is moved from a first position to a second position,
• obtaining a first image feature value of the display image displayed in the image display region where the movable region is at the first position;
• obtaining a second image feature value of the display image displayed in the image display region where the movable region is at the second position;
• and
• determining whether the display image displayed in the image display region is a static image based on the first image feature value and the second image feature value,
• the first image feature value and the second image feature value are brightness value of the display image displayed in the image display region,
• wherein the method for processing the display image further comprises:
• setting a threshold parameter;
• wherein the determining whether the display image displayed in the image display region is a static image based on the first image feature value and the second image feature value, comprises:
• calculating an absolute value of a difference between the first image feature value and the second image feature value;
• determining the display image displayed in the image display region as a non-static image in a case where the absolute value of the difference is greater than the threshold parameter;
• and
• determining the display image displayed in the image display region as a static image in a case where the absolute value of the difference is less than or equal to the threshold parameter;
• wherein the movable region is moved from the first position to the second position, comprises:
• allowing the movable region to move M pixel steps from the first position along a first direction;
• and
• wherein in a case where a maximum step size of the movable region moving along the first direction is n rows or n columns of pixels,
• the threshold parameter is a product of the maximum step size and an average image feature value of each row or column of pixels in the image display region, and
• M is an integer greater than zero, n is an integer greater than zero.