Method for measuring sawtooth degree of edge pixels

Abstract

The invention provides a method for measuring the sawtooth degree of edge pixels. The method comprises the following steps: obtaining a picture with an original image; extracting a to-be-measured contour of the original image; measuring a distance R from a contour point in the to-be-measured contour to the center of a preset circle of the original image, measuring an included angle a formed by a connecting line between the contour point and the center of the circle and a horizontal line, and calculating a difference d between the distance R and the radius r of the preset circle; generating a deviation curve d = d (a) between the difference value d and the included angle a by taking the included angle a as an independent variable and the difference value d as a dependent variable; and calculating the sawtooth degree of the to-be-measured contour according to the dispersion degree of the deviation curve. Photographing equipment is used for photographing to simulate the observation effectof human eyes, the edge pixel sawtooth degree is calculated by quantizing the photographed photo and then extracting the related parameters of the original image in the photo, so that the edge pixelsawtooth degree can be calculated and quantized more objectively, and the visual effect is prevented from being influenced by the excessively large edge pixel sawtooth degree.

Description

technical field [0001] The invention relates to the field of measuring the jagged degree of edge pixels, in particular to a method for measuring the jagged degree of edge pixels. Background technique [0002] In the field of display screens, as people pay more and more attention to the appearance of display screens, the design of special-shaped screens has grown rapidly. Such as figure 1 As shown, the corners of special-shaped screens are generally processed in a non-linear manner, and there are slotted areas for installing sensors such as cameras on the special-shaped screens, such as water drop screens and notch screens, etc., and the boundaries of the slotted areas are generally also Make a non-linear out. [0003] In order to match the display surface of the special-shaped screen, the pixels of the special-shaped screen on non-linear places such as the corners and the boundaries of the slotted area are usually arranged in a zigzag shape. The jaggedness of the color wi...

AI Technical Summary

Problems solved by technology

[0003] In order to match the display surface of the special-shaped screen, the pixels of the special-shaped screen on non-linear places such as the corners and the boundaries of the slotted area are usually arranged in a zigzag shape. The jaggedness of the color will affect the visual effect. At present, there is no measurement method to objectively quantify the jaggedness of edge pixels in the industry.

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