Image generation method and image display device

Abstract

The invention provides an image generation method and an image display device which are applied to a television comprising programmable rendering pipeline. The programmable rendering pipeline comprises a rasterizer channel and a fragment shader. The method comprises the steps of obtaining fragment data output by the rasterizer channel through the fragment shader and determining the fragment data as near edge data according to a coordinate value of the fragment data; adjusting an Alpha linear factor of the near edge data according to the distance from the near edge data to edge data, thereby obtaining a final fragment color value output by the fragment shader; and mixing the final fragment color value with pixel values at corresponding positions on a television screen according to a preset mixing function, thereby obtaining final pixels for generation of an image. According to the method, the color values between pixels at two sides of edges of the image can be changed, the color values are processed in a single channel of the fragment shader, and edge sawteeth generated on the edges of the image are avoided.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to an image generation method. The present application also particularly relates to an image display device. Background technique [0002] A TV screen is made up of small pixels. Although these pixels are very small, each pixel covers a certain area on the screen. We can compare these pixels to windows leading to the virtual world, and the task of the TV is to determine the color of each pixel so that a most beautiful picture can be seen through these windows. [0003] Some pixels "stride" on the edge of the object, and the color inside the pixel has a certain proportion, and the external display can reflect this proportion. The edge of the object will show different colors on both sides (otherwise it would not be called an edge). Due to the sudden jump of color between pixels, it will naturally appear jagged. This is because the area of ​​this one pixel ...

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