Image processing method and device, and terminal device

An image processing device and image processing technology, applied in the field of image processing, can solve problems such as moiré on the high-frequency edge of an image, and achieve the effect of solving moiré and improving image quality

Inactive Publication Date: 2017-06-20
QIKU INTERNET TECH SHENZHEN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide an image processing method, device and terminal equ

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  • Image processing method and device, and terminal device
  • Image processing method and device, and terminal device
  • Image processing method and device, and terminal device

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Experimental program
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Embodiment 1

[0074] refer to figure 1 , propose the image processing method of the first embodiment of the present invention, described method comprises the following steps:

[0075] S11. Convert the image from RGB space to YCbCr space to obtain a first processed image.

[0076] Specifically, the terminal device reads the image, and converts the image from RGB (red, green, blue) space to YCbCr space according to the conversion formula to obtain the first processed image. The image may be a captured image, may also be a locally stored image, may also be an image transmitted by an external device, and may also be an image loaded from a network.

[0077] Optionally, the following conversion formula can be used for spatial conversion:

[0078] Y=0.299*R+0.587*G+0.114*B

[0079] Cb=-0.169*R-0.331*G+0.500*B

[0080] Cr=0.500*R-0.419*G-0.081*B;

[0081] Among them, R represents the red channel component, G represents the green channel component, B represents the blue channel component, Y rep...

Embodiment 2

[0104] refer to Figure 7 , the image processing device of the second embodiment of the present invention is proposed, the device includes a first conversion module 100, a filter processing module 200 and a second conversion module 300, wherein:

[0105] The first conversion module 100: for converting the image from the RGB space to the YCbCr space to obtain the first processed image.

[0106] Specifically, the first conversion module 100 reads the image, and converts the image from the RGB space to the YCbCr space according to the conversion formula to obtain the first processed image. The image may be a captured image, may also be a locally stored image, may also be an image transmitted by an external device, and may also be an image loaded from a network.

[0107] Optionally, the first conversion module 100 may use the following conversion formula to perform space conversion:

[0108] Y=0.299*R+0.587*G+0.114*B

[0109] Cb=-0.169*R-0.331*G+0.500*B

[0110] Cr=0.500*R-0.4...

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Abstract

The invention discloses an image processing method and device, and a terminal device. The method includes the following steps of converting an image from the RGB space to the YCbCr space to obtain a first processed image; performing smoothing filtering on the chromaticity component of the first processed image in the YCbCr space to obtain a second processed image; and converting the second processed image from the YCbCr space to the RGB space. According to the image processing method, the image is converted from the RGB space to the YCbCr space, the chromaticity component is subjected to smoothing filtering in the YCbCr space, the unsmooth phenomenon of the chromaticity components Cb and Cr can be eliminated, when the processed image is converted from the YCbCr space back to the RGB space, the moire on the image also disappears, the moire on the image can be effectively removed, the image blurring can be prevented, the image quality is improved, and the technical problem that after the interpolation, the image high-frequency edge has moire can be solved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method, device and terminal equipment. Background technique [0002] In the image imaging process, each pixel in the image data obtained from the image sensor (sensor) represents only one color information, and the obtained image data needs to be interpolated to obtain a complete RGB image. However, under normal circumstances, in the high-frequency detail area of ​​the image, since the sampling frequency of the image sensor is not twice the highest frequency of the image detail area, the RGB image obtained by interpolation will have a large number of moiré patterns at the high-frequency edge. As a result, the visual perception of the image is seriously affected, and the image quality is reduced. Contents of the invention [0003] The main purpose of the present invention is to provide an image processing method, device and terminal equipmen...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/002G06T2207/20032G06T2207/20182
Inventor 邢红凯
Owner QIKU INTERNET TECH SHENZHEN CO LTD
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