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dng转换jpeg

在线计算网 · 收录于 2022-08-08 11:30:03

dng怎么转换成jpeg

dng格式介绍

  • 文件扩展名.dng
  • 文件类别images
  • 程序Adobe PhotoshopAdobe Photoshop ElementsAdobe Photoshop LightroomCorel DrawGoogle Picasa
  • 说明数字负片(DNG)是一个开放的图像文件格式RAW,由Adobe开发,这ESENZA损失。 Adobe开发的DNG文件格式,以满足特定的目标,你认为无法通过RAW文件格式即可到达。数字图像,简单的存储和软件开发人员,在相机应用程序通过相机厂商和多厂商兼容开放给所有使用。
  • 技术细节DNG文件扩展名是基于TIFF / EP水平建立。 DNG支持不同形式的元数据。的图像是与它们的原始数据或不都是由这种格式,其结果为“线性DNG”旁边的各种原料的支撑。可能的是,一个DNG线性变化控制,例如颜色特征文件,HDR,等等,这些都在从原始转换器创建的事实。支持DNG RAW文件格式每个转换器还支持线性DNG文件。
  • MIME类型image/dngimage/x-adobe-dng

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dng


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