Image enhancing method and device

An image enhancement and image technology, applied in the field of image processing, can solve the problems of poor image enhancement effect and amplify the noise of the original image, and achieve the effect of effective high-contrast image

Inactive Publication Date: 2007-09-12
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Embodiments of the present invention provide an image enhancement method and device to solve the problem that in the prior art, it is necessary to obtain multiple exposure images of still scenes to perform image enhancement processing, and when processing a single image, the noise in the original image will be amplified. Problems with bad enhancements

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  • Image enhancing method and device

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Embodiment Construction

[0024] An embodiment of the present invention provides an image enhancement method, first extracting the luminance component of each pixel in the original image, and then converting the luminance component of each pixel in the original image into the corresponding pixel represented by the reflection coefficient new brightness components, and finally determine the enhanced image according to the new brightness components of all pixels.

[0025] The image enhancement method provided by the embodiment of the present invention will be described below in detail by taking an original image with a size of m*n pixels as an example in conjunction with the accompanying drawings.

[0026] Please refer to Fig. 1, which is a flowchart of an image enhancement method in an embodiment of the present invention, specifically including:

[0027] S101: Extract the luminance component of each pixel in the original image.

[0028] The brightness component of the pixel is extracted because the huma...

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Abstract

The invention discloses an image intensifying method and device, for solving the problem of bad image intensifying effect in the existing techniques, comprising the steps of: A. extracting the brightness component of each pixel point in the original image; B. converting these brightness components into the corresponding new brightness components characterized by reflective coefficients to the pixel points; C. according to these new brightness components, determining the intensified image.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image enhancement method and device. Background technique [0002] In recent years, image capture devices such as digital cameras, digital video cameras, and video cameras have become popular rapidly, and required digital images can be obtained through these image capture devices. Existing image capture devices generally capture color image signals through their internal sensors, and then output red, green, blue (Red Green Blue, RGB) images after color separation, amplification and correction of the color image signals. However, when some image capture devices are used to capture images, often the obtained images are high-contrast images due to the excessively large difference between the brightness values ​​of various directions in the scene to be photographed. [0003] The so-called high-contrast image means that there are too bright image content and too dark image content ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64H04N9/77
Inventor 沈操
Owner VIMICRO CORP
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