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Image and character gradual-change method based on pixel points

A technology of pixels and white pixels, which is applied in the field of image processing, can solve the problems of low computing efficiency and achieve the effect of simple calculation, guaranteed quality, and smooth and natural color transition

Inactive Publication Date: 2013-11-27
NANJING NORMAL UNIVERSITY
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  • Abstract
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  • Application Information

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Problems solved by technology

This type of algorithm works well, but it needs to solve complex functions, so the calculation efficiency is not high

Method used

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  • Image and character gradual-change method based on pixel points
  • Image and character gradual-change method based on pixel points
  • Image and character gradual-change method based on pixel points

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Embodiment Construction

[0036] In order to illustrate the technical solution of the present invention more clearly, the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0037] Such as figure 1As shown, a rapid generation method of image text gradient effect, its specific implementation steps are as follows:

[0038] According to the user-specified source text image, target text image and control parameters (including standardized image width and height, search radius, text gradient rate, etc.), the gradient effect of image text can be realized.

[0039] 1. Preprocessing text images: In this example, the methods of adding and deleting pixels and linearly interpolating colors are used to scale text images with different widths and heights. First, define two text images in bitmap format as the source image and the target image, read them into the memory respectively, and regard them as a plane pixel point set with continuous tone changes...

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Abstract

The invention discloses an image and character gradual-change method based on pixel points. The method comprises the first step of recognizing characters in a source character image and characters in a target character image and zooming the characters into standardization images with the same size, the second step of respectively carrying binaryzation process on the standardization images according to a pixel color value, the third step of judging and modifying the female and male performance of the characters in the two images, the fourth step of setting a new composite image, judging the overlapped situation of the characters in the source image and the characters of the target image according to the pixel color value and dividing areas for the composite image, the fifth step of extracting pixel point sets of different areas in the composite image and ranking the point sets respectively, and the sixth step of sequentially changing pixel point colors of different areas in the composite image so that the gradual-change effect among the characters can be achieved. According to the image and character gradual-change method, the gradual change of any character can be achieved, the principle is simple and easy to achieve, natural transition among the characters can be guaranteed, and the effect is good.

Description

technical field [0001] The invention discloses a pixel point-based rapid drawing method of image text gradients, belongs to the technical field of image processing, and in particular relates to a technical method of image gradient processing. Background technique [0002] Text and image gradients are widely used in the fields of animation production, advertising design, and film and television special effects. This technology mainly includes two aspects, namely image text pixel extraction and text gradient effect realization. The prior art discloses a variety of methods for extracting text from images. [0003] A method for extracting image text edge maps (refer to: Yi Jian et al., patent "a method for image text detection", application number: CN200710122155.2), this technology is based on the edge maps of image pixels on each color component to obtain accumulation Edge map, and then use the color-based clustering method to decompose the cumulative edge map into several s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T13/00
Inventor 潘风庞明勇
Owner NANJING NORMAL UNIVERSITY
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