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首页> 外文会议>Conference on color imaging: Device-independent color, color hardcopy, and graphic arts >Designing method for tone and color reproducibility of digital still cameras and digital prints
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Designing method for tone and color reproducibility of digital still cameras and digital prints

机译：数码相机和数码照片的色调和颜色再现性的设计方法

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Abstract: A private standard and procedure for designing tone and color reproducibility of digital still cameras are described. We defined a 'hub' color space which interconnect input devices and output devices. As the images taken by digital still cameras are usually displayed 'as is' on CRTs and often exchanged as digital image files, the color space employed in compliant to the international standard, Recommendation ITU-R BT.709. We also defined a procedure for designing image processing parameters of digital still cameras to achieve proper exposure level, tone reproduction curve, color hue and saturation. The basis of this procedure is to reproduce subject color correctly in the hub color space. Every our digital still camera product is designed and evaluated following this procedure to minimize the difference of the image characteristics between products. Objective and colorimetric evaluation is performed by analyzing the image data hot in a studied where illuminants are strictly controlled. Subjective evaluation is performed by taking pictures under many different conditions and print them by a photographic color printer. Also described are some analysis on image characteristics of digital still camera when its images are printed on silver halide paper. Some limitations and difficulties to produce 'photographic' print from 'CRT' oriented image are presented and discussed. !2
机译：摘要：描述了用于设计数码相机的色调和颜色再现性的专用标准和程序。我们定义了一个“集线器”色彩空间，该色彩空间将输入设备和输出设备互连。由于数码相机拍摄的图像通常按原样显示在CRT上并经常作为数字图像文件交换，因此所使用的色彩空间符合国际标准ITU-R BT.709建议书。我们还定义了一种程序，用于设计数码相机的图像处理参数，以实现适当的曝光度，色调再现曲线，色相和饱和度。该步骤的基础是在中心颜色空间中正确再现主题颜色。我们的每款数码相机产品均按照以下步骤进行设计和评估，以最大程度地减少产品之间的图像特性差异。通过对严格控制光源的研究中的热图像数据进行分析，从而进行客观和比色评估。主观评估是通过在许多不同条件下拍照并通过照相彩色打印机进行打印来进行的。还介绍了数字照相机在卤化银纸上打印时的图像特性分析。提出并讨论了从面向“ CRT”的图像产生“照相”印刷品的一些局限性和困难。 ！2

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