A computational method of content-sensitive image auto-scaling based on salient depth-of-field features

A technology of sensitive images and calculation methods, applied in the directions of calculation, image analysis, image data processing, etc., can solve problems such as image deformation, achieve the effect of avoiding distortion and improving the penetration probability of energy lines

Pending Publication Date: 2018-12-28
周泽奇
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Problems solved by technology

The algorithm proposed in this study is used to establish a content-sensitive image automatic scaling prototype system, which can quickly and conveniently scale the target image automatically according to the size of the real device. Although th

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  • A computational method of content-sensitive image auto-scaling based on salient depth-of-field features
  • A computational method of content-sensitive image auto-scaling based on salient depth-of-field features
  • A computational method of content-sensitive image auto-scaling based on salient depth-of-field features

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Embodiment Construction

[0072] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0073] see Figure 1-8 , the present invention provides a technical solution: a calculation method for automatic scaling of content-sensitive images with salient depth-of-field features, including S0 boundary-type saliency depth-of-field calculation, A0 depth-of-field estimation algorithm and A8 deformation calculation of non-salient regions, S0 boundary type Salient depth of field calculation, the steps and calculation are as follows:

[0074] S1: First, use the watershed algorithm to generate ridge lines at the edge of the image object for pre...

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Abstract

The invention discloses a calculation method for automatically zooming content sensitive image with prominent depth-of-field characteristics, includes A1 selecting a plurality of patches arbitrarily from 1000 high-definition images, A2 obtaining a fuzzy dictionary Dblur by training ((using Gaussian fuzzy of sigma=2), A3 each patch in the target image G being then decomposed into a weighted superposition sum of several basic atoms, A4 by calculating the number of basic atoms decomposed by the target patch, clear images having a lot of detail, more atoms in Dblur being needed to approximate, theblurred image being decomposed into fewer atomic superpositions, A5 describing the number of atoms fblur in the image decomposition as the fuzzy depth of field and proposing a depth of field estimation algorithm, an A0 depth of field estimation algorithm being obtained; A6 reducing the distortion of non-salient region by enhancing the protection formula of background in x-direction and y-direction for depth of field F, and A 7 keeping salient region and reducing the change of structure information of non-salient region, which can alleviate the distortion of non-salient region.

Description

technical field [0001] The invention relates to the field of image scaling, in particular to a calculation method for automatic scaling of content-sensitive images with prominent depth-of-field features. Background technique [0002] With the popularization of mobile phones, digital cameras and other equipment, people use photos to record every bit of life all the time. However, different display devices (mobile phones, pads, TVs, web pages, etc.) will cause severe distortion (stretching, compression or distortion) of photo content in order to fit the aspect ratio of the screen. To solve this problem, this study proposes a content-sensitive image automatic scaling algorithm based on salient depth-of-field features, so that images often need to be displayed on devices of different sizes and resolutions. After the general electronic image is taken, its resolution and aspect ratio cannot be automatically changed with the size of the display device. When displaying, switching ...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06T7/50
CPCG06T3/403G06T7/50
Inventor 周泽奇
Owner 周泽奇
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