| 一种新的PDP低灰度级图像增强技术 |
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| 引用本文： | 唐晓静,赵静. 一种新的PDP低灰度级图像增强技术[J]. 宁夏大学学报(自然科学版), 2011, 32(4): 325-328 |
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| 作者姓名： | 唐晓静 赵静 |
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| 作者单位： | 1. 宁夏财经职业技术学院,宁夏银川,750021
2. 宁夏大学数学计算机学院,宁夏银川,750021 |
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| 基金项目： | 宁夏自然科学基金资助项目(NZ1026);宁夏大学科研基金资助项目(NDZR10-22) |
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| 摘 要： | 针对常规PDP显示中的低灰度级轮廓问题，提出了一种新的PDP低灰度级图像增强算法．该算法根据PDP线性离散化的显示特点利用图像的表现率动态选择多种子场的编码，减少了图像伽马变化过程中灰度级的细节损失．针对PDP实际输出亮度相对于输入灰度级有反转的现象进行了理论分析和算法处理，消除了低灰度图像灰阶反转的现象．利用误差扩散算法最大限度地重现了图像的细节．实际结果表明该算法能够减少低灰度级轮廓，其显示效果明显优于传统方案．
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| 关 键 词： | 伽马变换 低灰度级轮廓 等离子显示器 |
A New Algorithm of Low Gray-level Image Enhancement in PDP |
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| Tang Xiaojing , Zhao Jing. A New Algorithm of Low Gray-level Image Enhancement in PDP[J]. Journal of Ningxia University(Natural Science Edition), 2011, 32(4): 325-328 |
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| Authors: | Tang Xiaojing Zhao Jing |
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| Affiliation: | 1.Ningxia Finance and Economics Vocational College,Yinchuan 750021,China; 2.School of Mathematics and Computer Science,Ningxia University,Yinchuan 750021,China) |
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| Abstract: | With regard to the problem of low gray level contour noise in conventional PDP algorithm, a new PDP gray-scale image enhancement algorithm is proposed. It first increases the detail gray lost in gammaconversion by using picture weight to choice variety subfield code. In order to reduce gray inversion, the theoretical foundation and algorithm of inversion of input gray level for PDP actual light are analyzed.Meanwhile the image detail is restored with error diffusion. The results show that this algorithm is able to reduce low level gray contour noise and its effect is better than the traditional one. |
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| Keywords: | gamma conversion low gray contour noise plasma display panels |
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