swf转换jpeg
在线计算网 · 收录于 2022-08-08 12:50:15
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文件扩展名.swf
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文件类别video
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程序Web Browser with flash plugin
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主程序Adobe Flash Player
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说明Adobe拥有的Swiff用于动画矢量表示，它可以包含文本以及其他面向矢量的图形。 任何安装了Flash插件的Web浏览器都可以播放该文件。
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技术细节它首先只是“Shockwave Flash”的首字母缩写词，因为它最初是为Shockwave播放器开发的。 这些文件是二进制文件，以8位字节的形式存储，最新的SWF10版本允许扩展文本功能，支持双向文本和复杂脚本。 这允许嵌入在α通道上操作的JPEG定向图像，用于不透明度和平滑滤波器。
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MIME类型application/x-shockwave-flash
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文件扩展名.jpeg
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文件类别images
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程序Adobe PhotoshopApple PreviewCorel Paint Shop Pro
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主程序MS Paint
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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.
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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.
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MIME类型image/jpeg
