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Method and apparatus for processing painting and calligraphy images

An image processing device and image processing technology, applied in the direction of image data processing, image enhancement, instruments, etc., can solve the problems that the damage of fonts cannot be restored, it is difficult to distinguish between noise and text, and it is impossible to effectively distinguish the noise of text outlines, etc.

Inactive Publication Date: 2009-03-25
张显俊 +1
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  • Abstract
  • Description
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Problems solved by technology

However, this method cannot effectively distinguish the noise on the outline of the text, nor can it restore the damage to the glyph caused by the noise on the outline of the text.
[0006] Since the noise is randomly distributed in different shapes and sizes, it is difficult to distinguish the noise from the text, especially the noise on the outline of the text. Many denoising methods often destroy the original font of the text while denoising.

Method used

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  • Method and apparatus for processing painting and calligraphy images
  • Method and apparatus for processing painting and calligraphy images
  • Method and apparatus for processing painting and calligraphy images

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Embodiment Construction

[0054] Images taken from steles are known to contain a lot of noise. figure 1 An example of an inscription calligraphy image accompanied by severe noise.

[0055] The preferred implementation of the present invention for processing calligraphy and painting images will be described below in conjunction with the accompanying drawings.

[0056] 1. Smooth preprocessing

[0057] First, the present invention preprocesses the captured images. In one embodiment, the present invention uses a median filtering technique to smooth the captured image to remove part of the noise. Median filtering technology is a method of performing median filtering on a numerical sequence through a moving window. In this method, the value of the data sequence located at the center point of the window is replaced by the median value of each data value in the window. For example, for a one-dimensional data sequence f 1 , f 2 ,..., f n , take the window length as m, where m is an odd number. Each time ...

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Abstract

The invention provides a method and a device for processing a calligraphy and painting image. The method and the device can conduct the binarization processing for a captured calligraphy and painting image to obtain an image processed by binarization; extracting the outline of the image after the binarization processing to obtain at least a closed outline curve; smoothening the closed outline curve, including conducting Fourier transformation for the outline curve, that is, eliminating radio-frequency components in Fourier coefficients and then conducting the Inverse Fourier transformation, so as to the smoothened outline curve. The method and the device of the invention can not only effectively de-noise the calligraphy and painting image, but correctly restore the image.

Description

technical field [0001] The present invention relates to an image processing method and device, in particular to a method and device for processing calligraphy and painting images. Background technique [0002] Computer calligraphy creation simulation involves artificial intelligence, graphics and image processing, cognitive science, etc., and requires a large number of fonts. Ancient Chinese calligraphy inscriptions are a natural choice. Unfortunately, after natural weathering and corrosion, the handwriting on the inscriptions is often blurred and accompanied by a lot of corrosion noise. In addition, craftsmen often damage the glyphs due to human errors in the process of engraving steles. Therefore, from the extraction of inscription calligraphy to the formation of fonts, not only image capture and image storage are required, but also image processing using computer technology is required to restore the original appearance of inscriptions, among which denoising and glyph re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 张显俊董军
Owner 张显俊
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