diff options
Diffstat (limited to 'test/lua/fft.lua')
| -rw-r--r-- | test/lua/fft.lua | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/lua/fft.lua b/test/lua/fft.lua new file mode 100644 index 0000000..3589635 --- /dev/null +++ b/test/lua/fft.lua @@ -0,0 +1,17 @@ +require"imlua" +require"imlua_process" +require"imlua_fftw" + +local filename = "lena.jpg" +local image = im.FileImageLoad(filename) + +local complex = im.ImageCreate(image:Width(), image:Height(), image:ColorSpace(), im.CFLOAT) +im.ProcessFFT(image, complex) + +local c = complex[0][5][10] -- component=0(Red), y = 5 x =10 +print(c[1], c[2]) + +complex[0][5][10] = { 2*c[1], c[2]/2 } + +local c = complex[0][5][10] +print(c[1], c[2]) |