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图像(image)依语境又称影像物像,是人对视觉感知的物质再现,也是物体反射或辐射电磁波能量强度的连续多维空间信息、显示、记录[1][2]

图像可以由光学设备获取,如照相机镜子望远镜显微镜等;也可以人为创作,如手工绘画。图像可以记录、保存在纸质媒介、胶片等等对光信号敏感的介质上。随着数字采集技术和信号处理理论的发展,越来越多的图像以数字形式存储。因而,有些情况下“图像”一词实际上是指数字图像

与图像相关的话题包括图像采集、图像制作、图像分析图像处理等。

图像分為静態影像,如圖片、照片等,和动態影像,如视频等兩種。

圖像是一種視覺符號。透過專業設計的圖像,可以發展成人與人溝通的視覺語言,也可以是了解族群文化與歷史源流的史料。世界美術史中大量的平面繪畫、立體雕塑與建築,也可視為人類由古自今文明發展的圖像文化資產

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