Image generation method and device
An image generation and image technology, applied in the direction of 2D image generation, image enhancement, image data processing, etc., can solve the problems of noise sensitivity, image noise sensitivity, affecting segmentation effect, etc., and achieve the effect of eliminating wrong segmentation problem and image smoothing
Active Publication Date: 2018-10-09
BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
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The disadvantage of the threshold method is that it is difficult to obtain accurate segmentation results when the gray difference between the target and the background or the target is not obvious, or the gray value range of the target and the background has a large overlap. noise sensitive
The edge-based segmentation method uses the discontinuity of the pixel value of the object boundary to complete the image segmentation. When there is noise in the image, it is easy to generate false edges, which affects the segmentation effect.
[0004] In general, the above image segmentation methods only start from the pixel value of a single point image, ignore the prior of local smoothness of the image, and are sensitive to image noise
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[0026] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.
[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0028] figure 1 An exemplary system architecture 100 to which embodiments of the image generation method or image generation apparatus of the present application can be applied is shown.
[0029] Such as figure 1 As shown, the system architecture 100 may include terminal d...
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The invention discloses an image generation method and device. One specific embodiment of the invention includes the following steps: obtaining a pixel value set of pixel points of a to-be-processed image and a label value set associated with the image, wherein label values are used for identifying categories to which the pixel points belong; establishing an energy function according to the labelvalue set and the pixel value set, wherein the energy function is used for representing the consistency between the label values and pixel values; for the pixel points of the image, selecting the label values from the label value set for distribution to minimize the value of the energy function; and classifying the pixel points of the image according to the label values distributed to the pixel points of the image, and modifying the pixel values of the pixel points belonging to the same category to the same value so as to generate a processed image. The image generation method and device realize the segmentation processing of the image, and can effectively suppress the impact of image noise on image segmentation results.
Description
technical field [0001] The present application relates to the field of computer technology, in particular to the field of computer image processing technology, especially to an image generation method and device. Background technique [0002] Image segmentation is an image processing technology that divides an image into meaningful regions. Segmentation technology has important research value and broad application prospects in the fields of medical diagnosis, motion analysis, and structural analysis. Image segmentation is the first step in image analysis. The next tasks of image segmentation, such as feature extraction and target recognition, all depend on the quality of image segmentation. For example, in medicine, with the increasing role of imaging medical technology in medicine, image segmentation has special significance in medical applications. Segmentation technology enables people to obtain effective medical image information. The segmented images are widely used in...
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Login to View More IPC IPC(8): G06T11/00G06T5/00
CPCG06T11/001G06T5/70G06T11/00
Inventor 李川
Owner BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD