Portrait hairline flowing special effect implementation method
An implementation method, hair technology, applied in the field of image processing, can solve problems affecting user experience, not being smart enough, affecting hair flow effects, etc.
Pending Publication Date: 2020-11-24
HANGZHOU QUWEI SCI & TECH
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Problems solved by technology
[0002] Among the special effects processing software for portrait photos currently on the market, the method for automatically generating hair flow special effects for static portrait photos is basically vacant. Directly affect the pros and cons of hair flow special effects, at the same time, relying too much on user intervention also greatly affects the user experience, not smart enough
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[0050] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0051] Such as figure 1 In the described embodiment, a method for realizing the special effect of flowing hair of a portrait, specifically includes the following steps:
[0052] (1) input image S;
[0053] (2) Carry out hair segmentation on the image S to obtain the hair region Mask; the specific operation method is:
[0054] (21) Based on convolutional neural networks, such as Unet / PSPnet / BiSeNet, etc., construct a hair segmentation network, taking Unet as an example;
[0055] (22) Use the convolutional neural Unet network to train the segmentation network model for 10,000+ hair samples, input the original RGB image, and output a single-channel black and white Mask, where the white area represents the hair area, the black area represents the background area, and the sample has data Calibrator calibration generation;
[0056] (23) Use the t...
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The invention discloses a portrait hairline flowing special effect implementation method. The method specifically comprises the following steps: inputting an image S; performing hair segmentation on the image S to obtain a hair region Mask; calculating hair anchor points, a hair area contour fixed anchor point set P and a hair flow direction anchor point set Q; carrying out Delaunay triangulationon the two sets of point sets P and Q to obtain a triangular vertex set M0, and taking the vertex set M0 as a deformation point set of a hair flowing special effect of a starting frame or a 0th frame;calculating a streamline variable point set Q (t) by t frames of flow direction variable points, and performing Delaunay triangulation to obtain a t frames of triangular deformation point set M (t);and according to the M0 and the M (t), performing triangular affine transformation on the original image S to obtain a corresponding deformation effect image. The invention has the beneficial effectsthat the static user picture automatically generates the special effect of flowing and floating of the hair in the hair area, user or manual intervention is not needed, and the purpose of intelligentprocessing is achieved.
Description
technical field [0001] The invention relates to the technical field related to image processing, in particular to a method for realizing a special effect of flowing hair of a portrait. Background technique [0002] Among the special effects processing software for portrait photos currently on the market, the method for automatically generating hair flow special effects for static portrait photos is basically vacant. It directly affects the pros and cons of hair flow special effects. At the same time, relying too much on user intervention also greatly affects the user experience and is not smart enough. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings in the prior art, the present invention provides a method for realizing the hair flow special effect of portraits that automatically generates the hair flow special effect. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: ...
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IPC IPC(8): G06T7/11G06T7/90G06T3/00G06N3/04G06K9/62G06K9/00
CPCG06T7/11G06T7/90G06T2207/20081G06T2207/20084G06V40/171G06V40/10G06N3/045G06F18/214G06T3/02
Inventor 胡耀武樊伟富李云夕熊永春
Owner HANGZHOU QUWEI SCI & TECH