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Method for enhancing graphics by using area gain calibration

An image and corrected technology, applied in the field of image processing, can solve the problems of large calculation amount, increase of integrated circuit layout area, increase of power consumption, etc., to achieve the effect of simple calculation

Inactive Publication Date: 2010-03-31
AVISONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can obtain images with better dynamic range, this kind of calculation will require a large amount of calculation
If this method is implemented on the product, it will inevitably increase the layout area of ​​the integrated circuit. In addition, the power consumption will also increase with the increase in the amount of calculation.

Method used

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  • Method for enhancing graphics by using area gain calibration
  • Method for enhancing graphics by using area gain calibration
  • Method for enhancing graphics by using area gain calibration

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Embodiment Construction

[0048] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

[0049] image 3 It is a flowchart of an image enhancement method according to an embodiment of the present invention. Please refer to image 3 , in this embodiment, each pixel is taken as a unit to perform adaptive brightness correction on the above-mentioned pixels, so as to achieve the purpose of increasing the dynamic range of the image. The method for image enhancement includes the following steps:

[0050] Step S301: start.

[0051] Step S302: Capture a digital image, wherein the digital image has a plurality of pixels P(1, 1)˜P(M, N), wherein M and N are the total number of horizontal pixels and the total number of vertical pixels respectively. In this embodiment, each pixel has three sub-pixels, which are red R, green G, and blue B, respectively. ...

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Abstract

The invention relates to a method for enhancing graphics by using area gain calibration, which comprises the following steps: replacing graphics pixel values with red, green and blue maximums; selecting a specific pixel from a plurality of pixels of digital graphics; selecting a plurality of pixels close to the specific pixel to form a specific block; computing an average value of the specific block; providing a plurality of curve functions; and obtaining a corresponding curve function by the average value of the specific block, and substituting the graphics pixel values into the curve function to obtain a new output luminance value.

Description

technical field [0001] The present invention relates to an image processing technique, and in particular to a method for enhancing an image by using area gain correction. Background technique [0002] In recent years, due to the advancement of technology, the forms of multimedia have become more diverse. For digital video, such as digital photo, digital display, digital video or digital video broadcasting technology, image enhancement technology is more important. Image processing (image processing) is to use the functions provided by the image processing computing technology to change the color, brightness, focal length, etc. Operate the program to do the synthesis. For example, some functions of image processing, such as changes in brightness and contrast, can quickly change a sunny image into a rainy image. It is even possible to use the process of image processing such as selection and clipping to make the two images blend in with each other, so that the original appe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/20
Inventor 吴明洋游启昌宋柏安
Owner AVISONIC TECH
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