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Image shake processing method and device

A technology of dithering and image processing, which is applied in the field of image processing to achieve the effect of overcoming the lack of directionality, reducing complexity, and having no dithering noise

Active Publication Date: 2018-06-29
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The problem to be solved by the present invention is how to ensure a certain image quality for the output image after the dithering process, and reduce the complexity of the dithering process to meet the real-time requirements

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  • Image shake processing method and device
  • Image shake processing method and device

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Embodiment Construction

[0039] Since the existing image dithering processing methods cannot simultaneously improve the quality of the output image and reduce the processing complexity, it is necessary to ensure that the output image reaches a certain level for some terminal devices that are sensitive to hardware configuration costs, such as mobile phones and handheld computers. Quality, and the need to meet the real-time requirements of image processing without increasing the cost, this is an urgent problem to be solved.

[0040] In order to solve the above problems, the technical solution of the present invention proposes a method for image shaking processing, such as figure 1 As shown, the shaking processing method of the image comprises:

[0041] Step S1, traversing the pixel points in the image to be processed along the traversal path formed by the fractal curve;

[0042] Step S2, perform neighborhood processing for each pixel that has been traversed, the neighborhood processing includes: summin...

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Abstract

An image shaking processing method and device, the method comprising: traversing the pixel points in the image to be processed along a traversal path formed by a fractal curve; performing neighborhood processing on each pixel point traversed, and the neighbor Domain processing includes: summing the value of the currently traversed pixel point and the error value corresponding to each pixel point in the neighborhood of the pixel point, and the pixel points in the neighborhood are the pixels on the traversal path that are currently traversed. Pixels that are adjacent in sequence and have been traversed; determine the value of each pixel in the image to be processed after the dithering process with the results of the neighborhood processing. The technical scheme of the present invention can not only ensure a certain image quality of the output image after the dithering process, for example, make the output image rich in tone, continuous in grayscale transition, and free from dithering noise and obvious moiré and worm phenomena, but also reduce the cost of dithering processing. complexity to meet real-time requirements.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image shaking processing method and device. Background technique [0002] Dither is an intentional noise that randomizes quantization errors and prevents problems such as banding that can result from greatly stretching an image. The concept of dither is commonly used in digital sound and digital video data processing, and is also commonly used in compressed disks. [0003] Dithering in image processing is a technique that uses a limited color palette to create the illusion of color depth in an image. In a dithered image, those colors that are not available in the palette can be replaced by an approximation of the colors available in the current palette, and the human eye can accept this mixture of colors. Dithering is similar to halftone printing used in printing techniques, where dithered images, especially those that use the associated few colors, can ofte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 孙德印朱钧何佳伟
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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