什么是Node.js 官网介绍: Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open
什么是Node.js 官网介绍: Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open
摄像头基础介绍 一.摄像头结构和工作原理. 拍摄景物通过镜头,将生成的光学图像投射到传感器上,然后光学图像被转换成电信号,电信号再经过模数转换变为数字信号,数字信号经过DSP加工处理,再被送到电脑中进行处理,最终转换成手机屏幕上能够看到的图像. 数字信号处理芯片DSP(DIGITAL SIGNAL PROCESSING)功能:主要是通过一系列复杂的数学算法运算,对数字图像信号参数进行优化处理,并把处理后的信号通过USB等接口传到PC等设备.DSP结构框架: 1. ISP(image signal