chrominance

简明释义

英[ˈkrəʊmɪnəns]美[ˈkroʊmɪnəns]

n. [光] 色度；色差；彩色信号

英英释义

单词用法

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例句

1.After being treated, the wastewater looks transparent. Both BOD and COD values are lowered for 60%. The suspension removed rate to 91%, and chrominance for 77%.

经该法处理的酿酒废水外观清晰透明，BOD,COD值均降低6 0 %以上，悬浮质去除率达91%，色度去除率为77%。

2.In detail, there is reported on the achievable improvement of picture sharpness and signal-to-noise ratio as well as on the reduction of flicker effects and luminance-chrominance-interference.

本文还详细报导了图象尖锐度和信噪比，以及抑制闪烁效应和亮度色度串扰等方面可获得的改善。

3.The luminance and chrominance measurement principle of color TV and the ways to luminance and chrominance measurement of white color TV will be introduced and discussed in the second chapter.

第二章阐述了彩色电视机光色测量的原理，介绍了测量彩色电视机白场光色特性的方法。

4.This paper presents a "waveform display method" for checking the colour TV Chrominance Delay Line in the factory, and introduces a simple, practical and self-made test-signal generator.

本文提出一种适用于工厂检测彩色电视色度延迟线的“波形方法”，并介绍了一种自制的简易实用的测试信号源。

5.In detail, there is reported on the achievable improvement of picture sharpness and signal-to-noise ratio as well as on the reduction of flicker effects and luminance-chrominance-interference.

本文还详细报导了图象尖锐度和信噪比，以及抑制闪烁效应和亮度色度串扰等方面可获得的改善。

6.A novel human face detection method is introduced, which is based on chrominance colour information feature from an image containing one face in indoor environment with non-uniform background.

介绍了一种新颖的人脸检测方法，该方法基于非统一背景下室内环境中单幅人脸图像的色度特征信息。

7.Applying the theory of multi dimensional digital signal processing, this paper analyses the 2-dimensional interleaving structure of luminance and chrominance spectrum for the PAL signal.

运用多维数字信号处理理论，分析了PAL信号亮度和色度频谱的二维交错结构。

8.In digital imaging, chrominance 色度 is often separated from brightness to enhance color quality.

在数字成像中，色度通常与亮度分开，以提高颜色质量。

9.Adjusting the chrominance 色度 settings can significantly improve the overall appearance of the photo.

调整色度设置可以显著改善照片的整体外观。

10.The chrominance 色度 component is essential for accurate color reproduction in displays.

在显示器中，色度组件对于准确的颜色再现是至关重要的。

11.Television broadcasts often use chrominance 色度 and luminance to create a full-color image.

电视广播通常使用色度和亮度来创建全彩图像。

12.The video compression algorithm reduces the amount of data by focusing on the chrominance 色度 rather than the luminance.

视频压缩算法通过关注色度而不是亮度来减少数据量。

作文

In the world of digital imaging and video technology, understanding the concept of chrominance is crucial for both professionals and enthusiasts. Chrominance, or '色度', refers to the color information in a video signal, which is separate from the brightness information known as luminance. This distinction is essential because it allows for more efficient processing and transmission of video data. By separating these two components, we can achieve better quality images while using less bandwidth.When we watch a movie or a television show, our eyes perceive colors and brightness simultaneously. However, the way these elements are encoded in digital formats is quite complex. The chrominance component encodes the color aspects of the image, such as hue and saturation, while the luminance component handles the brightness levels. This separation is particularly important in applications like video compression, where reducing the amount of data transmitted without significantly impacting perceived quality is necessary.For example, in the widely used JPEG image format, the compression algorithm takes advantage of the human eye's sensitivity to brightness over color. By compressing the chrominance information more than the luminance, JPEG can achieve a smaller file size while maintaining a visually acceptable image. This principle is also applied in video encoding standards such as MPEG, where the chrominance data can be sampled at a lower resolution than the luminance data, a technique known as chroma subsampling.The significance of chrominance extends beyond just technical specifications; it plays a vital role in artistic expression and visual storytelling. Filmmakers and video editors manipulate color grading to evoke emotions and set the mood of a scene. Understanding how chrominance interacts with luminance allows creators to make informed decisions about color palettes and lighting, enhancing the overall impact of their work.Moreover, advancements in technology have led to the development of high dynamic range (HDR) imaging, which further emphasizes the importance of chrominance. HDR allows for a wider range of brightness and color, providing a more realistic viewing experience. In HDR content, both luminance and chrominance are critical in delivering the vibrant colors and deep contrasts that characterize this format.In conclusion, chrominance is a fundamental concept in the fields of digital imaging and video technology. Its role in separating color information from brightness enables more efficient data processing and enhances visual quality. As technology continues to evolve, the understanding and application of chrominance will remain essential for creators and consumers alike, ensuring that the art of visual storytelling continues to thrive. Whether you are a filmmaker, a photographer, or simply a viewer, recognizing the significance of chrominance can deepen your appreciation for the visual media we consume every day.

在数字图像和视频技术的世界中，理解chrominance这个概念对专业人士和爱好者来说至关重要。chrominance或称为“色度”，指的是视频信号中的颜色信息，它与被称为亮度的亮度信息是分开的。这种区分非常重要，因为它允许更高效地处理和传输视频数据。通过将这两个组件分开，我们可以在使用更少带宽的情况下实现更高质量的图像。当我们观看电影或电视节目时，我们的眼睛同时感知颜色和亮度。然而，这些元素在数字格式中的编码方式相当复杂。chrominance组件编码图像的颜色方面，例如色调和饱和度，而亮度组件处理亮度水平。这种分离在视频压缩等应用中尤为重要，在这些应用中，需要减少传输的数据量，同时不显著影响感知质量。例如，在广泛使用的JPEG图像格式中，压缩算法利用了人眼对亮度比对颜色的敏感性。通过比亮度压缩chrominance信息更多，JPEG能够在保持视觉可接受图像的同时实现更小的文件大小。这一原理也适用于视频编码标准，如MPEG，其中chrominance数据可以以低于亮度数据的分辨率进行采样，这一技术被称为色度子采样。chrominance的重要性不仅仅局限于技术规格；它在艺术表达和视觉叙事中也发挥着至关重要的作用。电影制作人和视频编辑通过调色来唤起情感并设置场景的氛围。理解chrominance如何与亮度相互作用使创作者能够就色彩调色板和照明做出明智的决定，从而增强其作品的整体影响。此外，技术的进步导致了高动态范围（HDR）成像的发展，这进一步强调了chrominance的重要性。HDR允许更宽的亮度和颜色范围，提供更真实的观看体验。在HDR内容中，亮度和chrominance在提供特征化这种格式的生动颜色和深邃对比方面都是至关重要的。总之，chrominance是数字图像和视频技术领域的一个基本概念。它在将颜色信息与亮度分开方面的作用使得数据处理更加高效，并增强了视觉质量。随着技术的不断发展，对chrominance的理解和应用将继续对创作者和消费者至关重要，确保视觉叙事艺术的不断繁荣。无论您是电影制作人、摄影师还是单纯的观众，认识到chrominance的重要性都能加深您对我们每天消费的视觉媒体的欣赏。