ppt转换jpeg
在线计算网 · 收录于 2022-08-08 12:30:23
-
文件扩展名.ppt
-
文件类别documents
-
程序Apple KeynoteLibreOfficeOpenOffice
-
主程序Microsoft PowerPoint
-
说明PPT - 是一种用于创建各种演示文稿的流行格式。 它是由Forethought的专家创建的，然后被微软收购。 使用此解决方案，您可以在Microsoft Office中开发复杂的演示文稿，包括文本和图形数据，图像，声音，图表等。 用户可以应用该功能来添加更改幻灯片或文本外观的效果，以及在.pot，.potx或.potm扩展上构建的众多模板。
Microsoft Office套件或免费的PowerPoint Viewer应用程序用于打开文件。 此外，该格式由开源实用程序支持，例如Libre Office或Corel WordPerfect Office。 要使用移动设备上的演示文稿，可以使用金山办公室程序。
-
技术细节该扩展包含用于制作小屏保的各种动画设置。 脚注和文本包装的使用允许您为性能创建最佳形式。 幻灯片的主人负责演示设计风格的开发，允许使用简单的布局进行复杂的编辑。 用户可以选择特定类型的添加项。 PPT的格式在2007年之前一直用于Microsoft Office程序，然后由PPTX取代。
-
MIME类型application/mspowerpointapplication/powerpointapplication/vnd.ms-powerpointapplication/x-mspowerpoint
-
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
