Facebook图像缩放 [英] Facebook Image scaling

问题描述

我注意到Facebook上有一件奇怪的事情。我已经将3840 X 2400图像上传到Facebook。当我从Facebook下载相同的图像时，我得到了2048 X 1280（压缩比= 1.8）的图像。上传了2560 X 1600并获得了960 X 600（压缩比= 2.6）。我上传了1440 X 1280并获得了960 X 854（压缩比= 1.5）。为什么我的图像会缩放？按比例缩放图像的百分比是多少？另外，什么是高品质选项？如果我们选择那个选项会怎么样？任何人都可以解释一下吗？我浏览了 GRAPH API 但找不到任何线索....任何人都可以帮我pleaseeeee

Hi,
I noticed a strange thing on Facebook. I have uploaded 3840 X 2400 image to Facebook.When I downloaded the same image from Facebook, I got an image of 2048 X 1280(Compression ratio = 1.8) . Uploaded 2560 X 1600 and got 960 X 600(Compression ratio = 2.6).I uploaded 1440 X 1280 and got 960 X 854(Compression ratio = 1.5).Why are my images scaled? To what percentage, the image is scaled? Also, what is the option "High Quality"? What happens if we select that option? Can any one explain me? I went through GRAPH API but couldn't find any clue.... Can anyone help me pleaseeeee

推荐答案

你有没有尝试过： https://www.facebook.com/EnglishForums [ ^ ]？



问候，

- Manfred

Have you tried here yet: https://www.facebook.com/EnglishForums[^]?

Regards,

— Manfred

非常好的问题。好吧，它的图像调整大小和我找到了一个有用的链接，可以帮助你一点，理解这个问题。



Facebook图片的秘密透露：Facebook的照片压缩分析 [ ^ ]



问候......：笑：

Really good question.Well,its the matter of image resizing and i found one interesting link that will help you a bit,understanding the issue.

Facebook Picture Secrets Revealed: An Analysis of Facebook’s Photo Compression[^]

Regards.. :laugh:

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