Coder Social home page Coder Social logo

panderan.github.io's People

Contributors

panderan avatar

Watchers

 avatar  avatar

panderan.github.io's Issues

索引颜色与抖动 | Deran Pan's Pages

https://panderan.github.io/2020/02/24/%E7%B4%A2%E5%BC%95%E9%A2%9C%E8%89%B2%E4%B8%8E%E6%8A%96%E5%8A%A8/

RGB 颜色广泛应用于数字图像,8 位深度的 RGB 颜色一共可以表示 1600 万中颜色,其中一个像素点的颜色将使用 3×8=24 位来存储,即需要 3 Bytes 的存储空间。一副分辨率为 1920×1080 的图像在未压缩时将需要约为 6M 大小的存储空间,因此,如何减少图像的体积大小是当前计算机当中的广泛需求。实现减小图像体积的主要方法除了常见的图像压缩算法之外,还有使用索引颜色以及抖动。

脉冲编码调制、数字图像/音频信噪比、分贝 | Deran Pan's Pages

https://panderan.github.io/2020/03/07/%E6%95%B0%E5%AD%97%E5%9B%BE%E5%83%8F%E9%9F%B3%E9%A2%91%E4%B8%AD%E4%BF%A1%E5%99%AA%E6%AF%94/

文本首先简单介绍了脉冲编码调制的方法,并由其中的量化误差引出了信噪比概念。接着对信号-量化噪声比进行了介绍以及如何用分贝单位对噪声比进行计算表示。最后对如何用分贝表示声音进行了说明,并介绍了分贝声压级以及满量程分贝级两种表示方法。

颜色在计算机中的表示方法 | Pages

https://panderan.github.io/2020/02/13/%E9%A2%9C%E8%89%B2%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E4%B8%AD%E7%9A%84%E8%A1%A8%E7%A4%BA%E6%96%B9%E6%B3%95/#more

博文首先对人眼的颜色感知方式进行了简要的说明,叙述了人眼感知颜色的方式。接着对 RGB 色彩显示的方法进行了说明,类似于人眼的三种视锥细胞,RGB色彩通过使用三种基本色混合来产生其他颜色。最终引出 CIE XYZ 颜色坐标空间,,并进行了简要介绍。该空间提供了其他颜色空间相互转换的能力,以及可以对不同颜色空间进行对比。

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.