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A method for realizing special effects of facula blur

An implementation method and spot technology, applied in the field of image processing, can solve the problems of heavy calculation, low efficiency, short heat generation, etc., and achieve the effect of increasing expressiveness, simple and fast algorithm, and saving computing resources

Active Publication Date: 2018-01-12
XIAMEN MEITUZHIJIA TECH
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  • Abstract
  • Description
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Problems solved by technology

[0004] However, the existing digital image "spot blur" algorithm is very inefficient. Taking an ordinary 800*500 digital photo as an example, the calculation time on an Armv7 core smartphone (take Samsung Galaxy S5 as an example) is as high as 6.73 seconds, the huge amount of calculation will also bring more serious heat and shorter battery life, which is unacceptable for mobile phone users

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  • A method for realizing special effects of facula blur
  • A method for realizing special effects of facula blur
  • A method for realizing special effects of facula blur

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Embodiment Construction

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention 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 the present invention, not to limit the present invention.

[0037] Such as figure 1 As shown, a method for realizing special effects of facula blurring of the present invention comprises the following steps:

[0038] 10. Receive the original image, fill the periphery of the original image with black pixels, fill the size of the original image to the preset size, and obtain the original filled image;

[0039] 20. Receive the spot material image, and perform scaling processing on the spot material image to obtain the scaled material image;

[0040] 30. Presetting the weight lookup table, converting the original ...

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Abstract

The invention discloses a method for realizing the special effect of light spot blurring. It fills the periphery of the original image with black pixels, fills the size of the original image to a preset size, obtains the original filled image, and performs scaling processing on the light spot material image. Obtain the scaled material image, construct the weight image according to the preset weight lookup table, and then perform fast Fourier transform on the original filling image, scaled material image, and weight image respectively, and calculate the original matrix, material matrix, and weight image respectively. value matrix, and calculate the spot matrix, and finally perform inverse fast Fourier transform on the spot matrix to obtain the spot effect image. The algorithm is simple and fast, and its processing speed is more than 10 times that of the existing algorithm, saving a lot of computing resources. , while greatly increasing the expressiveness of ordinary digital photos without increasing hardware costs.

Description

technical field [0001] The invention relates to an image processing method, in particular to a method for realizing special effects of facula blurring. Background technique [0002] "Flare blur", also known as lens blur, refers to the "spot" effect that naturally appears on the highlights outside the focus of the subject during photography. These blurred "spots" often have consistent shapes and brilliant colors, and are often used by photographers to enhance the atmosphere of photos and express the emotions of works. For example, when shooting candlelight at night, use the spot blur method to create a soft "spot" of dots behind the subject, which can effectively highlight the subject-candlelight, without making the background too monotonous, and the subject and background blend. Xiang Huiyin, the expressiveness of the work has been greatly improved. [0003] Unfortunately, due to the limitations of the hardware itself, it is impossible to achieve a satisfactory blur effect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/40
CPCG06T3/04
Inventor 张伟蔡政傅松林许清泉
Owner XIAMEN MEITUZHIJIA TECH
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