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3D portrait food printing method

A portrait and food technology, applied in the field of computer graphics and image processing, can solve the problems of affecting the appearance and increasing the thickness

Active Publication Date: 2017-05-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The single-layer printing effect is better. If there is an intersection between the paths, the thickness at the intersection will increase, which will affect the appearance

Method used

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Embodiment Construction

[0075] A 3D portrait food printing algorithm of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0076] like Figure 1~4 As shown, a 3D portrait food printing algorithm includes the following steps:

[0077] 1) Convert the source image collected by the peripheral to a grayscale image

[0078] Collect face images through mobile phones or other external devices, and then convert the source images expressed in the RGB color space into grayscale images.

[0079] Gray=R*0.299+G*0.587+B*0.114

[0080] Gray represents the gray value, R, G, B is a color space red green black this vector represents a color value.

[0081] 2) Use the API provided by face++ to identify 83 face feature points in the face feature area, and obtain 83 feature points covering the contour of the face, including eyebrows, eyes, nose, and mouth contour;

[0082] According to the distribution of key features on the face, ...

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Abstract

The present invention discloses a 3D portrait food printing method. The method comprises the following steps: a human face image is input, the input human face image is convert to a gray scale map, 83 human face feature points are found, preprocessing is conducted, gray values of the human face feature points are strengthened, an ETF algorithm is used to construct a smoothing direction field of the human face image, a FDOG algorithm is used to conduct anisotropic Gaussian filter based on a direction field flow direction, binarization is used to obtain human face image contours, an 8-connected depth-first traversa is used to get rid of local details to obtain simplified human face contour image, a prim algorithm is used to connect two closest line segments to form an one-stroke human face contour path, an erosion algorithm is used to simplify the path to finally obtain a human face 3D printing path. The 3D portrait food printing method simplifies the portrait 3D printing generation path, at the same time retains most contour information on human face, is also clear, friendly in interface is, and great in results, and can be used for the 3D food printing, commercial apps and other fields.

Description

technical field [0001] The invention relates to the field of computer graphics and image processing, in particular to a 3D portrait food printing method. Background technique [0002] It is an idea full of personality and fun to print consumers' photos into delicious and artistic food through 3D food printing. Since the materials used for food printing are corresponding food materials, they are quite different from the abs, sla and other materials used in ordinary 3D printers in terms of production technology, heating temperature, and solidification conditions, so it is necessary to make targeted improvements according to the needs. [0003] Printing with materials such as sugar, chocolate, or cream has a large line width, and repeated stacking and multi-layer printing are easy to lose shape and the effect is poor. The effect we aim to achieve is sugar painting, the overall structure is exquisite and full of artistry, and it can be stuck on the bamboo stick and taken off co...

Claims

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Application Information

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IPC IPC(8): A23P30/00G06T3/00
CPCG06T3/04
Inventor 金小刚
Owner ZHEJIANG UNIV
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