Method and a device for eliminating edge saw teeth of an image

Abstract

The invention discloses a method for eliminating edge saw teeth of an image, comprising the following steps: firstly, pixel values of a foreground image and a background image of an image to be processed are analyzed; Then the edge to be processed of the foreground image is determined, pixel values of the edge to be processed are acquired, mixed pixel values according to the pixel values of the edge to be processed and the pixel values of the background image are acquired, and the transparency of the mixed pixel to opaque is changed; Then an original pixel value of a corresponding position isreplaced in the image edge with the mixed pixel value to generate a processed foreground image; Finally, the processed foreground image and the background image are synthesized to generate a new image. The invention also discloses a device for eliminating edge sawtooth of an image. The method and the device of the invention can display images with rich colors under the conditions of poor display performance and poor processor performance, achieve the optimization effect of eliminating the edge saw teeth of icons, and can greatly reduce the cost required by the display interface.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for eliminating jagged edges of an image. Background technique [0002] Today's traditional methods of anti-aliasing image edges require efficient processor performance. Nowadays, many pictures are in high-quality picture format with rich colors. When this type of picture is displayed on a hardware platform with low processor performance and poor display performance, the displayed picture will lose color. Especially at the edge of the image, there will be obvious color loss and jaggedness, and the visual effect is poor. Under such hardware conditions, it is necessary to convert high-quality images into low-quality images first, and then input them to the monitor for display. The operation is complicated, and the image quality needs to be reduced step by step according to the performance requirements of the monitor. Contents of the invention [0003] In orde...

AI Technical Summary

Problems solved by technology

Nowadays, many pictures are in high-quality picture format with rich colors. When this type of picture is displayed on a hardware platform with low processor performance and poor display performance, the displayed picture will lose color. Especially at the edge of the image, there will be obvious color loss and jaggedness, and the visual effect is poor

Under such hardware conditions, it is necessary to convert high-quality images into low-quality images first, and then input them to the monitor for display. The operation is complicated, and the image quality needs to be gradually reduced according to the performance requirements of the monitor.

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