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Image processing method, device and mobile terminal

An image processing device and image processing technology, applied in the field of communication, can solve problems such as poor black and white image effects, achieve strong contrast, improve the overall effect, and have obvious contrast in image brightness and darkness

Inactive Publication Date: 2018-03-23
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an image processing method, device, and mobile terminal to solve the problem that existing mobile terminals have relatively poor black and white images obtained after image processing of color images

Method used

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

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] see figure 1 , figure 1 is a flowchart of an image processing method provided by an embodiment of the present invention, and the image processing method can be applied to a mobile terminal, such as figure 1 shown, including the following steps:

[0026] Step 101, perform face recognition according to the captured color image.

[0027] In this embodiment, a color image may be captured by a front camera or a rear camera of the mobile terminal, ...

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Abstract

The invention provides an image processing method, an image processing device and a mobile terminal. The method comprises the steps of: performing face recognition according to a color image obtainedby shooting; mapping pixels in the color image using a mapping method corresponding to a first filter if a face is not recognized from the color image; and mapping pixels in the color image using a mapping method corresponding to a second filter if a face is recognized from the color image. The pixels in the color image are mapped using a mapping method corresponding to a preset filter to obtain ablack and white image, so that the overall effect of the black and white image can be improved, the gray scale transition of the black and white image is natural, the brightness contrast of the imageis obvious, and the background and theme contrast is strong.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an image processing method, device and mobile terminal. Background technique [0002] With the rapid development of mobile communication technology, mobile terminals have been widely used in people's daily life. For example, people often use mobile terminals to take images, and in some cases, people use mobile terminals to take black and white images. At present, mobile terminals generally use color Bayer array sensors to capture color images, and obtain black and white images by desaturating color images in Red Green Blue (RGB) mode, or read only Y Brightness information is used to obtain black and white images. "Y" in YUV mode means brightness (Luminance or Luma), which is the grayscale value; while "U" and "V" mean chroma (Chrominance or Chroma). It describes the color and saturation of the image, and is used to specify the color of the pixel. The gray-scale t...

Claims

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Application Information

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IPC IPC(8): H04N9/64H04N9/70H04N9/77H04N9/04
CPCH04N9/64H04N9/643H04N9/70H04N9/77H04N23/10
Inventor 陈曦
Owner VIVO MOBILE COMM CO LTD
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