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Mirror processing method for YuY2 image

A processing method and mirroring technology, which is applied in the field of mirroring processing of YUY2 images, can solve problems such as image color space changes, image mirroring processing failures, etc.

Inactive Publication Date: 2006-01-11
VIMICRO CORP
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Problems solved by technology

Figure 3 describes the results of 8 YUY2 image data after simple mirroring relative to the Y axis. It can be clearly seen from the figure that the YUV arrangement order in the mirrored data has changed, which is obviously different from the arrangement in the YUY2 format. The correct mirroring result should be as shown in Figure 4. From the comparison of Figure 3 and Figure 4, it can be seen that if the data in YUY2 format is mirrored by a simple method of symmetrically swapping pixel values, the image color space will change. , making image mirroring fail

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  • Mirror processing method for YuY2 image
  • Mirror processing method for YuY2 image
  • Mirror processing method for YuY2 image

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Embodiment Construction

[0016] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] The data sequence of YUY2 image has been described in Fig. 1, and reference sign 2 partly represents the image data of YUY2 format before image processing, enumerates eight data sequences in the figure: Y156U78 Y157V78 Y158U79 Y159V79 Y160U80 Y161V80 Y162U81Y163V81, this sequence is formed by light The signal is converted into an analog electrical signal by an image sensor, and then converted into a YUY2 digital image signal by A / D. The digital image signal is mirrored through the following steps:

[0018] Referring to Figure 4, the image processing method is as follows:

[0019] Step a: extract their Y, U, V data line by line and store them in the Y data buffer, U data buffer and V data buffer respectively. Reference numeral 2 represents that the Y, U, V data are respectively In the state of storage, eight data sequences are l...

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Abstract

This invention relates to a mirror image process method for YUY2 image including the following steps: picking up data of y, u and v from the image data and storing them in three buffer zones then carrying out mirror image process to data of y, u and v in the three data buffer zone based on the shaft of independently then re-organizing the imaged data of y, u, x, to compose new image data.

Description

technical field [0001] The present invention relates to a mirror image processing method of an image, in particular to a mirror image processing method of a YUY2 image. Background technique [0002] Common image formats in the prior art include RGB format and YUV format, among which RGB formats include RGB1, RGB4, RGB8, RGB565, RGB555, RGB24, RGB32, ARGB32, etc.; common YUV formats include YUY2, YUYV, YVYU, UYVY, AYUV , Y41P, Y411, Y211, IF09, IYUV, YV12, YVU9, YUV411, YUV420, etc. Figure 1 describes the schematic diagram of the image data sequence in YUY2 format and the schematic diagram of the corresponding pixels. The general image mirroring processing method adopts a simple image-based Y axis for mirroring, and two pixels symmetrical to the Y axis are exchanged to complete the image mirroring process. Figure 2 describes the image processing for RGB24 format images. Schematic diagram of mirroring processing, which uses this simple method, but this simple mirroring method...

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Application Information

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IPC IPC(8): H04N9/64
Inventor 曹玉弟
Owner VIMICRO CORP
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