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gamma校正
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  gamma correction
     By importing 18 reference voltages from outside, the internal D/A circuits generate the Gamma Correction curve for TFT-LCD.
     通过外接18个基准电压,由内部D/A电路生成Gamma校正曲线,为显示屏提供驱动电压。
短句来源
     Automatic Gamma correction system for liquid crystal projector
     液晶投影机自动Gamma校正系统
短句来源
     Some circuit functions,such as digital gamma correction,time base correction,timing generator,phase-lock loop,I2C control,can be realized efficiently with FPGA instead of all the functions of integrated chips.
     在FPGA内部设计了数字GAMMA校正、时基校正、时钟发生器、锁相环、I2C控制等模块,替代了各个专用集成芯片的功能,用数字技术取代传统模拟技术实现电路各模块,简化了电路;
短句来源
     At the s ame time, a BP neural network Gamma correction was provided to modify the CRT Ga mma correction given by CIE.
     同时对CIE的CRT显示器Gamma校正方法进行改进,提出了基于神经网络的Gamma校正方法.
短句来源
     Experimental results showed that after Gamma correction,the luminance outputted by the LC projector accorded perfectly with the theoretical power function. The percentage luminance error was within-1%~1%,and the outputted image recurred every gradation.
     测试结果表明,经Gamma校正系统校正后的投影机输出光强曲线符合理想的幂指数函数,且光强误差在-1%~1%以内,能够重现输出图像的各个层次.
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  gamma adjustment
     Gamma Adjustment: Based on the characteristic of digital photofinishing and the photoelectric characteristic of LCOS, Gamma adjustment flow is designed with the mathematical feedback method.
     Gamma校正:根据冲印系统特性和LCOS的光电特性,运用数学反馈的方法建立了LCOS的Gamma校正流程。
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  “gamma校正”译为未确定词的双语例句
     3. Several methods were used to improve the system calibration and measurement accuracy. A novel interpolation algorithm for calibration was proposed, system gamma and distortion correction was used, and sampling error was controlled.
     3.针对三维测量中测量精度不高的问题,运用多种方法进行改进:提出了一种新的插值标定算法,进行了系统的GAMMA校正、畸变校正以及抑制量化误差,提高了标定与测量精度;
短句来源
     The emendation of GAMMA curve in LCD TV is only looking for appropriate emending data that is inputted into GAMMA emending memory in LCD TV, so color pictures can be correctly transmitted and recurred.
     液晶电视的GAMMA曲线的校正,就是找出红绿蓝三组合适的GAMMA校正数据,并把校正数据输入到液晶电视内部的GAMMA校正表中,以实现彩色的正确传输与重现。
短句来源
     Then the Gamma data are generated automatically according to the line and sent to the LUT real-time.
     系统中的软件根据此曲线自动生成Gamma数据,并实时写入到投影机驱动电路Gamma校正寄存器中.
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  gamma correction
We analyze the influence of image enhancement processing and gamma correction on SFR characteristics by varying the edge chart contrast.
      
Applying the inverse of this function to intensity values is referred to as gamma correction.
      
A gamma correction was applied to the combined data sets, allowing for varying rates of evolution at different positions.
      
A tune adjustment of the precharge voltage improves the picture quality, ensures the right gamma correction, and increases light efficiency.
      
All of our examples were constructed from JPG-encoded photographs, with unknown gamma correction and camera response curve.
      
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  gamma adjustment
Additionally, most cameras apply a gamma adjustment to map the range of intensity values on the CCD to the available output range.
      
Most modern cameras use some kind of gamma adjustment to map the image in the available quantization range for obtaining a better looking image.
      


It is not a linear relation between the light output and the signals input of color CRTgraphics monitor,so the monitor property must be corrected(Gamma Correction beforetransforming signals input and its display colorimetry.This paper develops a mathematicmethod for the correction by a simple light meter,describes a visual checks which can be usedfor quick verification of the integrity of the correction,and finaly gives a example to build aHVC color solid for a color graphics monitor.

彩色CRT图形显示器的光输出与其信号输入之间并不呈线性关系,因此在完成信号输入与显示色度的线性变换之前必须对显示器进行线性校正(Gamma校正)。本文提出了一种用简单的测光仪完成这一校正的数学方法,和一种可用于快速检验校正结果的视觉检测方法,并给出在显示器上建立HVC色立体的应用实例。

Digital watermarking is a new method for copyright protection of multimedia in a networked environment. A new watermarking algorithm for still image based on classification of image features is presented in this paper. The strength of watermark is a constant in most of the current image watermarking schemes. In this paper, the strength of the watermark which is embedded in the block DCT coefficients of the image varies with the texture, edge and luminance feature of the image adaptively. Therefore, it can ensure...

Digital watermarking is a new method for copyright protection of multimedia in a networked environment. A new watermarking algorithm for still image based on classification of image features is presented in this paper. The strength of watermark is a constant in most of the current image watermarking schemes. In this paper, the strength of the watermark which is embedded in the block DCT coefficients of the image varies with the texture, edge and luminance feature of the image adaptively. Therefore, it can ensure the invisibility and enhance the strength of the watermark simultaneously. By exploiting the statistical properties of the watermark, the watermark can be detected reliably. Experimental results demonstrate that the watermark is robust to several processings such as JPEG compression, luminance altering, contrast altering, Gamma rectification, histogram balance, crop, etc.

数字水印是一种新型的数字媒体版权保护技术。提出了一种基于图像区域特征分类的数字水印算法 ,它利用图像区域特征分类结果对水印的嵌入强度进行自适应调制 ,从而在确保水印不可见性的同时有效地增强了水印的强度。实验表明 ,该算法对 JPEG压缩、亮度改变、对比度改变、Gamma校正、直方图均衡、剪切等具有较强的鲁棒性

A linear model which could simulate CIE standard illumination and Munsell color chips was establishe d and implemented. Simulating the spectrum of CIE standard illumination and Muns ell color chips with high precision was the core function of the model. At the s ame time, a BP neural network Gamma correction was provided to modify the CRT Ga mma correction given by CIE.Test results showed that the simulation precision w as very high; and that the reality degree of the simulated color appearance was highly...

A linear model which could simulate CIE standard illumination and Munsell color chips was establishe d and implemented. Simulating the spectrum of CIE standard illumination and Muns ell color chips with high precision was the core function of the model. At the s ame time, a BP neural network Gamma correction was provided to modify the CRT Ga mma correction given by CIE.Test results showed that the simulation precision w as very high; and that the reality degree of the simulated color appearance was highly improved by BP Gamma correction. The simulation system could be widely ap plied to research fields such as color recognition, optics, computer graphics, and machine vision.

构建并实现了CIE标准照明体和Munsell颜色体仿真线性模型,该模型的核心是模拟CIE标准照明体和Munsell颜色体的光谱能量分布;同时对CIE的CRT显示器Gamma校正方法进行改进,提出了基于神经网络的Gamma校正方法.通过对仿真结果的检验发现,该模型对CIE标准照明体和Munsell颜色体的仿真精度很高,且对CRT显示器上仿真的颜色外观较CIEGamma校正方法更为逼真.该仿真系统可应用于颜色认知、光学、计算机图形学和机器视觉等相关学科领域.

 
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