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nef转换jpeg

在线计算网 · 收录于 2022-08-08 11:47:42

nef怎么转换成jpeg

nef格式介绍

  • 文件扩展名.nef
  • 文件类别images
  • 程序Adobe PhotoshopAdobe Photoshop LightroomPaint Shop ProPicasadigiKam
  • 说明人们,尤其是那些谁使用尼康品牌的摄像头,采用这种格式的RAW图像的优点。这些文件包含元数据相关的透镜,这是必要的图像获取,设置细节等该格式包含的数据记录作为基质。摄像机的通过透镜的传感器获得的记录。的色调,颜色,图像的清晰度可以在不影响内容进行更改。此功能不正确地应用到压缩图像。 12位的图像和14比特图像通过此格式的支持。
  • 技术细节无需更改主或初始文件进行编辑NEF文件。在相机的色调调整,白平衡,锐度,色调的内部操作的情况下,没有必要永久应用NEF。这些仍然为一组的文件中说明。此外,该文件可以在不阻碍的内容进行修改。相比于TIFF或JPEG文件,品种的NEF文件的色彩较大。使用这些文件可以保持数据位24:14;您也可以快速查看图片,因为这些文件有一个JPEG文件和缩略图版本,无论元数据。您可以保存或编辑文件作为NEF NEF格式或TIFF或JPEG格式。编辑,存档,打印和发送这些文件很简单。
  • MIME类型image/NEF

jpeg格式介绍

  • 文件扩展名.jpeg
  • 文件类别images
  • 程序Adobe PhotoshopApple PreviewCorel Paint Shop Pro
  • 主程序MS Paint
  • 说明JPEG – is a popular graphic format, which is characterized by a high degree of compression, which leads to a decrease in image quality. It uses the technology of encoding of smooth color renditions, providing the ability to reduce the amount of data frequently during the recording of the image. Because of the small size it is requested by the owners of websites, allowing you to save the traffic effectively. It is also frequently used in memory cards of digital video cameras. The JPEG algorithm is optimally suitable for compressing photographs and pictures, in which realistic scenes with little contrast of colors are present. It is not recommended to use this format for compression of drawings and various kinds of graphics, since a strong contrast between a number of closely located pixels provokes the appearance of visible artifacts.
  • 技术细节The procedure for compressing the digital images in JPEG format is carried out in several stages. First, the photo is transformed into a color space YCbCr, then it is divided into squares to determine the upper range of the color spectrum. Finally, the colors and brightness are coded. JPEG uses a "lossy" compression system and discrete cosine transform technology. The format acts simultaneously as the standard of ISO and the International Telecommunication Union. The file compression ratio is in the range from 10:1 to 100:1. In this case, the reduction in image quality can vary from insignificant to substantial.
  • MIME类型image/jpeg

转换成nef


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