function?ftenen=abs_grad（I）

%?Focusing?function?based?on?absolute?gradient?value.
%?Tenenbaum?algorithm.


[m?n]=size（I）;
f=fspecial（‘sobel‘）;
%?[g?t?gx?gy]=edge（I‘sobel‘‘horizontal‘‘vertical‘）;
gx=imfilter（If）;
gy=imfilter（If‘）;
mag_grad=（abs（gx）+abs（gy））;
mag_grad（1:）=0;?mag_grad（m:）=0;
mag_grad（:1）=0;?mag_grad（:n）=0;

ftenen=sum（sum（（mag_grad）））;

?屬性????????????大小?????日期????時間???名稱
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?????文件????5760054??2010-02-17?16:23??Image?evaluation?function-matlab\01.bmp

?????文件????5760054??2010-02-17?16:23??Image?evaluation?function-matlab\02.bmp

?????文件????5760054??2010-02-17?16:23??Image?evaluation?function-matlab\03.bmp

?????文件????5760054??2010-02-17?16:23??Image?evaluation?function-matlab\04.bmp

?????文件????????382??2011-07-01?11:59??Image?evaluation?function-matlab\abs_grad.m

?????文件????????431??2011-07-01?14:44??Image?evaluation?function-matlab\addmomenreg.m

?????文件???????3911??2016-04-10?13:42??Image?evaluation?function-matlab\Autofocusdemo.m

?????文件???????1526??2016-03-18?19:01??Image?evaluation?function-matlab\Bestfunction.m

?????文件???????1464??2011-12-22?11:31??Image?evaluation?function-matlab\computeDCTfocus.m

?????文件????????467??2011-07-01?14:45??Image?evaluation?function-matlab\enfeigen.m

?????文件????????215??2011-07-01?14:47??Image?evaluation?function-matlab\filterdct.m

?????文件???????1218??2011-12-30?03:57??Image?evaluation?function-matlab\gaussgradient.m

?????文件????????324??2011-07-01?14:48??Image?evaluation?function-matlab\laplacian.m

?????文件???????1579??2015-05-27?12:23??Image?evaluation?function-matlab\loadfilename.m

?????文件????????538??2011-04-05?11:04??Image?evaluation?function-matlab\log_hist.m

?????文件????????683??2016-03-14?15:09??Image?evaluation?function-matlab\log_histogram.m

?????文件????????448??2011-03-22?15:32??Image?evaluation?function-matlab\mpq.m

?????文件????????120??2016-03-14?14:36??Image?evaluation?function-matlab\power_image.m

?????文件????????359??2011-07-01?14:54??Image?evaluation?function-matlab\robust_function.m

?????文件????????309??2011-07-01?14:55??Image?evaluation?function-matlab\tenengrad.m

?????文件????????444??2011-07-01?14:59??Image?evaluation?function-matlab\threshold_func.m

?????文件????????194??2011-07-01?15:01??Image?evaluation?function-matlab\variance.m

?????文件????????215??2011-07-01?15:00??Image?evaluation?function-matlab\variance_norm.m

?????文件????????330??2011-07-01?15:02??Image?evaluation?function-matlab\volf4.m

?????文件????????241??2011-07-01?15:02??Image?evaluation?function-matlab\volf5.m

?????文件????????237??2011-07-01?15:04??Image?evaluation?function-matlab\weighted_histogram_sum.m

?????目錄??????????0??2016-04-13?14:40??Image?evaluation?function-matlab

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?????????????23055851????????????????????27



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