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Color information reconstruction method for producing image with low resolution

A technology of color information and resolution, applied in the direction of image communication, electrical components, etc., can solve the problems of unable to meet the user's image quality requirements, full-color image quality degradation, etc., to increase practicability and application range, and to achieve good image quality , fast processing effect

Inactive Publication Date: 2007-07-04
ALTEK CORP
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Problems solved by technology

This method first reduces the resolution at the beginning, so it can save most of the calculation time to meet the user's requirements for speed, but it also leads to the degradation of the final full-color image quality and cannot meet the user's image quality requirements.

Method used

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  • Color information reconstruction method for producing image with low resolution
  • Color information reconstruction method for producing image with low resolution
  • Color information reconstruction method for producing image with low resolution

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Embodiment Construction

[0023] Take a Bayer pattern with a resolution of 4 million (ie 4M) pixels and finally produce a full-color image with a target resolution of 2 million (ie 2M) pixels as an example. First, generate the color information of the lower resolution image The reconstruction method is shown in the process 300 of FIG. 3. First, input a full-resolution original image that does not have all color information, such as two million green pixels, one million red pixels, and one million blue pixels (G :2M, R:1M and B:1M), in the CFAI calculation of step 310, only the green color information with full resolution 4M is reconstructed first, and in step 312, the resolution of the green color image is changed from full resolution 4M Reduce to the target resolution of 2M, perform CFAI calculation and zoom resolution at the same time in step 314 to reconstruct the red and blue color information with the target resolution of 2M, and then in step 320, the resolution is both the target resolution of 2M The...

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Abstract

The invention relates to a colorful information rebuild method for generating low-resolution image, wherein said method comprises that: using the full-resolution original image without all color information to rebuild the first information with full resolution; reducing its resolution to the target solution; directly rebuilding the second and third information with target resolution, and processing following image treatment on the first, second and third information to rebuild the colorful image with target resolution. The invention can reduce the image operation time, improve the output image quality, and improve the processing efficiency.

Description

Technical field [0001] The invention relates to a color image processing method, in particular to a color information reconstruction method for generating a lower-resolution image from a full-resolution original image without all color information. Background technique [0002] Color images can be obtained by a sensor with a specific pixel arrangement pattern corresponding to each color value, such as Bayer pattern (Bayer pattern). Each pixel position in the original image plane obtained by this sensor only senses a single color to generate a For the color value, the color filter array interpolation (ColorFilter Array Interpolation; CFAI) is used to calculate the missing color value for each pixel to generate a full-resolution red, green, and blue full-color image. In this process, in order to save the storage space for storing the full-color image, a step of scaling down is added to the image processing, so that the resolution of the full-color image is reduced to a target resol...

Claims

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Application Information

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IPC IPC(8): H04N1/56
Inventor 廖明俊郭俊廷张尹彬
Owner ALTEK CORP
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