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Method for improving image quality of digital camera stationary pictures

A digital camera and still image technology, applied in image communication, electrical components, etc., can solve the problems of not effectively using user data space, etc., and achieve the effects of increasing sharpness, sharpness, brightness difference and chromaticity difference Effect

Inactive Publication Date: 2007-03-14
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, in the process of image data processing, the traditional technology fails to effectively use the user data space

Method used

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  • Method for improving image quality of digital camera stationary pictures
  • Method for improving image quality of digital camera stationary pictures
  • Method for improving image quality of digital camera stationary pictures

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Embodiment Construction

[0032] Embodiments of the method for improving still image quality of a digital camera according to the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Fig. 3 is a schematic flow chart of improving the still image quality of a digital camera according to the present invention. As shown in the figure, the present invention consists of the following steps. The first step is to use the JPEG algorithm to compress the image data step S100; the second step is to grasp the maximum and minimum values ​​of the brightness and chrominance values ​​of the compressed image data, and store them in the user data step S110; the third step is to compress the JPEG Compressed image data decompression step S120; the fourth step, transform the decompressed YUV image data into a new value step S130 using the maximum and minimum values ​​stored in the user data; the fifth step, transform the YUV data into RGB form step S140 .

[0034] Gener...

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Abstract

This invention relates to one digital cameral static image quality improvement method, which comprises the following steps: a, using JPEG formula to compress image data; b, storing image information to compressed user data; c, decompressing JPEG images; d, through storing user data part to convert compressed data into new image data; e, converting new image data into RGB form.

Description

【Technical field】 [0001] The present invention relates to a method for improving the still image quality of a digital camera, more specifically, a method for improving the still image quality of a digital camera by using the maximum and minimum values ​​of image brightness and color. 【Background technique】 [0002] At present, people's demand for digital cameras is increasing day by day. In order to ensure effective processing of images in digital cameras, the JPEG algorithm is used to compress and elongate the data. The core of the JPEG algorithm is the discrete cosine transform. (DCT: Dixcete Cosine Transform) [0003] Discrete cosine transform is an orthogonal transform that transforms the 8×8 image space expression into a frequency domain expression. After transformation, most of the image energy is concentrated in the low frequency part. Using this characteristic, the information in the high frequency part is discarded to achieve compression. In order to discard the h...

Claims

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Application Information

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IPC IPC(8): H04N1/64H04N1/41
Inventor 吴锡炳
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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