推荐回答(5个)
1、使用的工具不一样
扫描图片需要用扫描仪,而照相需要用到照相机。
2、原理不一样
扫描的原理是通电子束、无线电波等移动呈像;而照相的原理则是通过将物体所反射的光线通过感光介质曝光来呈相。
3、运用范围不一样
扫描广泛应用在标牌面板、印制板、印刷行业等,在办公室使用扫描功能比较多;照相则在日常生活中很常见,用于各种图片摄影,如日常自拍、艺术摄影等。
4、图片清晰度不一样
扫描是把已经拍好的照片或者书面的文件用扫描仪器扫到电脑里面,扫描出来的图片效果会受到纸的质量、反光等因素影响,导致扫描的相片不清晰;拍照直接用相机拍下来,像素比较清晰。
5、图片信息不不一样
照相留下的图片文件中会有拍摄时间、相机焦距等信息,而扫描出来的图片没有这些信息。
参考资料来源:百度百科-照相
参考资料来源:百度百科-扫描
扫描和照相的区别有清晰度不同、过程不同、比例不同等,具体如下:
1、清晰度不同
扫描件是完全还原原件的电子版图片,清晰度非常好,而照片则是根据手机像素的效果来决定的,手机像素越高,清晰度就越高。
2、比例不同
扫描件是与原文件一比一还原的,而照片则是根据拍照的远近程度或手机像素或手机设置而呈现出的或有放大或缩小的效果,与原文件大小不一定相同。
3、色彩不同
扫描件的色彩平衡很均匀,不会出现忽明忽暗的情况,而照片不同,会根据当时环境而变化。
4、格式不同
扫描件的格式一般为PDF,而照相的照片一般为JPG、JEPG等图片格式。
5、过程不同
扫描指的是通过扫描仪,利用光电技术和数字处理技术,将图形或图像信息转换为数字信号,扫描需要先进的设备如扫描仪;而照相是利用数码设备将实物转换为图片,使用手机即可,程序较扫描简单方便。
参考资料来源:百度百科-扫描仪
【扫描】电子束、无线电波等在特定区域按一定规律移动而描绘出画面、物体等图形。
【照相】用照相机拍下实物影像。
扫描可以把一个文件上面所以的东西给扫描下来,比较均匀。
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