Image matting method and device
A technology of matting and picture, applied in the field of image processing, can solve the problems of lack of intelligence, reducing the accuracy of picture matting, reducing the efficiency of picture matting, etc., to achieve the effect of improving efficiency and accuracy
Inactive Publication Date: 2016-01-27
SHENZHEN TCL NEW-TECH CO LTD
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[0004] However, in the above-mentioned image matting method, the foreground part and the background part are distinguished entirely by user input. The operation process is complicated and not intelligent enough, which reduces the efficiency of image matting and reduces the accuracy of image matting.
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[0055] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0056] The invention provides a picture cutout method.
[0057] refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the image matting method of the present invention.
[0058] In one embodiment, the picture matting method includes:
[0059] Step S10, converting the input original picture into a data set and obtaining a similarity matrix corresponding to the data set;
[0060] The main body that executes the process of the technical solution of the present invention may be a terminal, or a cutout software loaded on the terminal, and the terminal may be electronic equipment such as a notebook computer, a pad, a palmtop computer, and a desktop computer. In this embodiment, preferably, the terminal is the execution subject. When it is necessary to perform a matting operation on a pictu...
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The present invention discloses an image matting method. The method comprises the steps of (A) converting an input original image into a data set and obtaining a similarity matrix corresponding to the data set, (B) obtaining the matting auxiliary point corresponding to an adding instruction when the matting auxiliary point adding instruction is detected and correcting the similarity value of the similarity matrix according to the matting auxiliary point, (C) generating a Laplace matrix according to the corrected similarity matrix and carrying out characteristic decomposition on the generated Laplace matrix to obtain characteristic values, and arranging corresponding characteristic vectors according to the size sequence of the characteristic values to obtain a characteristic vector queue, and (D) carrying out cluster analysis on the characteristic vector queue to obtain a matting result. The invention also discloses an image matting device. The intelligence of a matting operation is raised, and the efficiency and accuracy of the matting operation are effectively improved.
Description
technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for image matting. Background technique [0002] Cutout and image synthesis technology is an essential key technology in film and television production, and is widely used in media production. Digital matting is a technique that separates the foreground part of an image from the background. Digital matting can be divided into blue screen matting, natural image matting, shadow matting and environment matting according to the different original images. [0003] The current mainstream image matting method is to distinguish the background part and the foreground part by receiving user input, that is, the user demarcates the background part and the foreground part on the original picture, and separates the foreground part from the picture according to the user input to realize Image cutout operation. [0004] However, in the above image matting method, ...
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IPC IPC(8): G06T7/00
Inventor 杨杰
Owner SHENZHEN TCL NEW-TECH CO LTD