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raf转换jpeg

在线计算网 · 收录于 2022-08-08 11:55:44

raf怎么转换成jpeg

raf格式介绍

  • 文件扩展名.raf
  • 文件类别images
  • 程序Adobe LightroomAdobe PhotoshopAdobe Photoshop ElementsCorel DrawGoogle Picasa
  • 说明RAF是由富士制造的数码相机使用RAW文件格式。如果照片是拍摄,从相机的传感器收集到的所有信息被捕获,包括饱和度和对比度设置和色温。当相比JPG等图像格式的文件RAF具有更宽的颜色范围和接近拍摄的对象。从RAF文件的图像是相同的是什么相机传感器在拍摄画面的点捕获。
  • 技术细节关于相机设置的详细信息可以在不使用照片处理或图片编辑程序改变RAF文件进行调整。然而,图像可以以JPG或PNG格式的编辑后出口。此外,英国皇家空军文件不支持被出口或通过图像编辑程序保存。偶尔,英国皇家空军的文件来与文件中的图像的专用JPG版本。
  • MIME类型image/x-fuji-rafimage/x-fujifilm-raf

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raf


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