Lesson 7: Color Sample And Store
In the previous two articles, we discuss the relationships among color spaces, pixels, images, and videos. We also talk in detail about the sampling and storage formats for a red, green, and blue (RGB) color space and a luma, blue projection, and red projection (YUV) color space. In this article,…
Lesson 6: RGB Color And YUV Color
The previous part of this lesson describes the relations between the video, image, pixel, and color, and also introduces two popular types of color spaces. One is RGB color, which is widely known, and the other is YUV color, which is frequently used for videos. This part will introduce more…
Lesson 5: Color and Color Space
Preface In previous articles, we have learned the audio basics. Today, we are going to move on to the video part. Sounds play an irreplaceable role in our daily life, work, and entertainment, but we often say that “seeing is believing”. Actually, we have been never relying solely on “sounds”…
Lesson 4: Audio Encoding And Decoding
Advanced Audio and Video Development — Lesson 4: Necessity and Format Selection of Audio Encoding and Decoding In the previous lesson, we learned about the three A’s for audio pre-processing. After being processed by the audio pre-processing module, sound signals are purified. Before you want to share sound signals with…
Lesson 3: Automatic Gain Control (AGC)
Previously we had talked about Acoustic Echo Cancellation (AEC), an important audio pre-processing module that effectively removes acoustic echoes and noise in real-time communications (RTC), significantly improving user experience. In this lesson, we are going to introduce Automatic Gain Control (AGC). Volume Problems in Real-life Scenarios and Necessity of AGC…
Lesson 2: Acoustic Echo Cancellation
To help developers better understand the concepts of audio and video and quickly get started with the development of audio and video apps, ZEGOCLOUD and its audio and video development experts have designed this course “Advanced Audio and Video Development”. This course consists of a series of lessons starting from…
Lesson 1: Elements Of Audio
To help developers better understand concepts related to audio and videos and easily build audio and video apps, ZEGOCLOUD has developed this Advanced Audio and Video Development course with the help of its internal experts. This course includes a series of lessons. We will start with the basic concepts related to…
How Low-Light Image Enhancement Technology Helps You Improve User Experience
When visibility is low at night and you turn on your smartphone camera, the video preview is full of darkness, and the visibility is even lower than what you can see. With the surging of real-time video apps, we have seen various video enhancement technologies (such as beautification or AR…
