目前在我开发我通过图像的像素循环模糊是一个Android应用程序。这对一个640×480的图像需要约30秒。

Currently in an Android application that I'm developing I'm looping through the pixels of an image to blur it. This takes about 30 seconds on a 640x480 image.

而在Android Market中的应用程序浏览我碰到一个包括虚化功能和它们的虚化非常快（如5秒），所以他们必须使用模糊不同的方法。

While browsing apps in the Android Market I came across one that includes a blur feature and their blur is very fast (like 5 seconds) so they must be using a different method of blurring.

任何人都知道一个更快的方式不是通过像素循环其他？

Anyone know a faster way other than looping through the pixels?

推荐答案

这是一个在黑暗中拍摄，但你可以尝试图像缩小，然后再次把它做大。这可以用 Bitmap.createScaledBitmap完成（位图SRC，诠释dstWidth，INT dstHeight，布尔型过滤器）。确认和过滤器参数设置为true。它会在本地code运行，所以它可能会更快。

This is a shot in the dark, but you might try shrinking the image and then enlarging it again. This can be done with Bitmap.createScaledBitmap(Bitmap src, int dstWidth, int dstHeight, boolean filter). Make sure and set the filter parameter to true. It'll run in native code so it might be faster.