获得DCT在Android（离散余弦变换）图像 [英] Get DCT (Discrete Cosine Transform) of image on Android

问题描述

我对如何计算在Android 8 * 8博克图像的DCT一个问题。我用我的Andr​​oid项目OpenCV的，无法找到获取DCT适当的方法。

I have a problem on how to compute the DCT of 8*8 bock of image on android. I'm using opencv on my android project and can't find proper method for getting dct.

谁能知道如何计算呢？
有没有这样做在Android或者我应该用我自己的计算公式DCT任何方法？

can anyone know how to compute this ? is there any method for doing this on android or I should compute dct formula by my own?

请注意，我知道如何在原有的OpenCV获得图像的DCT（带cv2.dct（）），但我对Android的麻烦...

note that I know how to get DCT of image on original opencv (with cv2.dct()) but I have trouble on android ...

推荐答案

有一个在此链接：

<一个href=\"http://stackoverflow.com/questions/18123502/convert-opencv-dft-example-from-c-to-android\">Convert OpenCV的DFT例如，从C ++到Android

您可以到Core.dct调用替换DFT呼叫

you can replace the dft call with a call to Core.dct

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