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Picture red eye removal method based on 3G smart phone

A technology for smartphones and pictures, applied in image enhancement, image data processing, computer components and other directions, can solve problems such as low efficiency and complex algorithms, and achieve the effect of improving processing efficiency and reducing time and space overhead

Inactive Publication Date: 2011-02-09
HANGZHOU DIANZI UNIV
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AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a picture red-eye removal optimization algorithm suitable for smart phone platforms to solve the problems of complex and low efficiency of the existing algorithms

Method used

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  • Picture red eye removal method based on 3G smart phone
  • Picture red eye removal method based on 3G smart phone
  • Picture red eye removal method based on 3G smart phone

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] Such as figure 1 Shown, a kind of picture red-eye removal method based on 3G smart phone comprises the following steps:

[0027] Step (1) Select the face area. Select the face range on the image to be processed.

[0028] Step (2) determines the red eye area. Include the following steps:

[0029] Judging the red-eye area is mainly to judge the redness of the pixel point through the set threshold. In the color space described by the three primary colors of RGB, since it is difficult to separate the chromaticity and brightness, and there is a certain correlation between the color components, so Can't distinguish shades of red very well. Among various color spaces, the HSV color space embodies the characteristics of human eyes to distinguish colors, and is more suitable for distinguishing redness. Determining the red-eye area involves the following steps:

[0030]...

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Abstract

The invention relates to a picture red eye removal method based on a 3G smart phone. The existing red eye removal algorithm is applied on a special DSP processing chip or high-performance household personal computer (PC), is complex to realize and requires higher hardware conditions. The method of the invention comprises: firstly, selecting a human face area; then, taking the RGB value of each pixel point within a selected range, and converting the RGB value of each pixel point to the value of an HSV color space; removing noise points from the red eye area, wherein the step of removing the noise points comprises the processes of processing non-red noise points and isolated red noise points; and finally, repairing the red eye area. The red eye removal technology realized by the invention requires small time and space cost, is very suitable to remove red eyes in pictures on an embedded platform with limited hardware resource, such as smart phones and the like, solves the problem that the existing red eye removal technology requires high-performance hardware environment, and improves the processing efficiency.

Description

technical field [0001] The invention belongs to the technical field of mobile intelligent terminals, and relates to a method for removing red eyes in a picture based on a 3G intelligent mobile phone. Background technique [0002] Red eye is a common phenomenon in photography. The strong light from the close-up flashlight passes through the pupil and shines on the microvascular tissue behind the retina, and the red light reflected back will make the human eye appear red in the actual imaged photo, which is the reason for red eye. At present, the method for removing red eyes in pictures is mainly divided into three steps: (1) face detection; (2) red eye detection; (3) red eye correction. [0003] The methods of face detection mainly include: knowledge-based method: it encodes the face with a typical face formation rule base. Usually, face localization is performed by the relationship between facial features. Feature-invariant methods: This method finds the structural featur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06K9/00
Inventor 崔扬胡维华李原洲汤利平贾琳郁伟炜
Owner HANGZHOU DIANZI UNIV
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