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Vector image generation method and system based on bitmap image adaptive segmentation

A vector graphics, self-adaptive technology, applied in the fields of data processing, computer graphics, image processing and analysis, which can solve the problems of increased developer energy and time, high development cost, and no vector graphics generation method.

Active Publication Date: 2018-11-13
青岛九维华盾科技研究院有限公司
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  • Application Information

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Problems solved by technology

With the number and types of vector graphics required to be designed, the energy and time spent by developers will increase exponentially, and the development cost will become higher and higher
[0007] As mentioned above, there is currently no method for generating vector graphics with fast operation and strong versatility

Method used

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  • Vector image generation method and system based on bitmap image adaptive segmentation
  • Vector image generation method and system based on bitmap image adaptive segmentation
  • Vector image generation method and system based on bitmap image adaptive segmentation

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with drawings and embodiments.

[0050] The invention provides a vector diagram generation method based on adaptive segmentation of bitmap images, which includes steps S1-S3.

[0051] Step S1: Perform a filtering operation on the bitmap image by using a bilateral filtering algorithm to remove random noise interference in the image.

[0052] Specifically, the operation in this step is convenient for better application to processing algorithms such as image clustering and image segmentation. The bilateral filtering algorithm is to increase the color difference weight on the basis of the Gaussian filter, so as to better preserve the edge information of the image.

[0053] Step S2: Initially set each pixel of the bitmap image as a category, and combine pixels with similar values ​​into one category according to the characteristics of each pixel, so that the image forms regions of different categories, and...

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Abstract

The invention provides a vector image generation method and system based on bitmap image adaptive segmentation. According to the method, filtering operation is carried out on a bitmap image through adoption of a bilateral filtering algorithm. Region segmentation processing is carried out on the bitmap image; pixels with similar values are merged into the same class according to a value of each pixel of the image; through repeated iteration, region segmented images of the image are obtained; and regions with excessively small areas are merged into adjacent regions. Region marked images of the segmented images are obtained; region edges are extracted through adoption of an optimized edge model and an extraction algorithm; edge line segments are fitted; and an edge curve of each region is determined. A color average value of a source image corresponding to each class of regions in the region marked images within the region is calculated; the average value is taken as a color of the current region; and a color list corresponding to the region is formed. A corresponding vector image file is generated according to the edge curve data and color list information of each region.

Description

technical field [0001] The invention relates to the technical fields of image processing and analysis, data processing, and computer graphics, in particular to a method and system for generating vector graphics based on adaptive segmentation of bitmap images, which are used to rapidly convert bitmaps into vector graphics. Background technique [0002] Vector graphics, also known as object-oriented images, are represented using mathematical formula-based geometric image elements such as points, lines, rectangles, polygons, primitives, and arcs, which are called objects. Each object is a self-contained entity with properties such as color, shape, outline, size, and position. [0003] Vector graphics have the following advantages: they take up less storage space. Compared with bitmaps, vector graphics only retain the color information of lines and blocks; it has nothing to do with resolution, but only with the complexity of the image. The image is not distorted when zooming, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/20G06T7/11
CPCG06T7/11G06T11/203
Inventor 王向伟沙建军吕永胜彭锐辉张海洋
Owner 青岛九维华盾科技研究院有限公司
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