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Method for displaying and analyzing digital image in YUV format

A technology of digital image and analysis method, applied in image analysis, digital output to display equipment, image data processing, etc. Information and other issues, to achieve high-quality image analysis and image processing

Inactive Publication Date: 2012-02-08
WUHAN UNIV
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  • Application Information

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Problems solved by technology

[0005] The general image display processing method only displays the image, or deforms and denoises the image, but cannot display the detailed information of each pixel in the image.
In image analysis and processing, especially in the development process of video encoding and decoding systems, it is necessary to understand the information of pixels in some areas of video images. Therefore, the existing image display processing methods provide high-precision, high-precision Quality image analysis and processing without inconvenience

Method used

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  • Method for displaying and analyzing digital image in YUV format
  • Method for displaying and analyzing digital image in YUV format
  • Method for displaying and analyzing digital image in YUV format

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Embodiment Construction

[0032] The advantages of the technical solution of the present invention will be further described below through the embodiments in conjunction with the accompanying drawings.

[0033] The digital image display and analysis method of the YUV format that the present invention proposes, concrete steps are as follows:

[0034] S1. Input a standard YUV format video file.

[0035] S2. The width W, height H and sampling format of the input video image, the width W, height H and sampling format of the input video image, and the number of bytes of the single-frame image is calculated:

[0036] The input width W is 352 pixels, the height H is 288 pixels, and the sampling format is YUV 4:2:0. The number of bytes occupied by a single frame image is calculated by the formula S=W×H×3 / 2 S=W×H× 3 / 2=352×288×3 / 2=152064 bytes.

[0037] The sampling format is different, and the calculation formula for the number of bytes occupied by each frame of image is also different. The details are as fol...

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Abstract

The invention provides a method for displaying and analyzing a digital image in a YUV format. The method comprises the following steps of: converting an image in the YUV format into the image in an RGB format and displaying the obtained RGB image; segmenting the image into a plurality of macro blocks; and displaying Y, U and V values or R, G and B values of all pixel points in a designated regionin a pixel value display region. The method of the invention can intuitively display detailed information of pixel points in the image while displaying the image, so that image-related staff can moreaccurately analyze and process the image at higher quality.

Description

technical field [0001] The invention belongs to the field of digital image processing, in particular to a digital image display and analysis method in YUV format. Background technique [0002] Human beings pay more and more attention to vision, which promotes the rapid development of digital image processing. YUV is a color coding method adopted by the European television system, and it is a color space used by the analog color television system. In a modern color TV system, a three-tube color camera or a color CCD camera is usually used for image capture, and then the obtained RGB is passed through a matrix conversion circuit to obtain a luminance signal Y and two chrominance signals U, V, and finally the sending end converts the luminance and The three signals of chroma are encoded separately and sent out through the same channel. The representation method of this color is YUV color space representation. [0003] The importance of using the YUV color space is that its br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/77G06T7/00G06F3/14G06T7/11
Inventor 肖进胜易本顺邱晓筱王莉谢红刚
Owner WUHAN UNIV
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