显著性检测

参考文献：http://www.cnblogs.com/CCBB/archive/2011/05/19/2051442.html

1、一个简单的matlab例子

 1 clear
 2 clc
 3
 4 %% Read image from file
 5 inImg = im2double(rgb2gray(imread(‘256.png‘)));
 6 %%inImg = imresize(inImg, 64/size(inImg, 2));
 7
 8 %% Spectral Residual
 9 myFFT = fft2(inImg);
10 myLogAmplitude = log(abs(myFFT));
11 myPhase = angle(myFFT);
12 mySpectralResidual = myLogAmplitude - imfilter(myLogAmplitude, fspecial(‘average‘, 3), ‘replicate‘);
13 saliencyMap = abs(ifft2(exp(mySpectralResidual + i*myPhase))).^2;
14
15 %% After Effect
16 saliencyMap = mat2gray(imfilter(saliencyMap, fspecial(‘gaussian‘, [10, 10], 2.5)));
17 imshow(saliencyMap);

原图：

显著性：