Retinex图像增强方法
Retinex图像增强方法:
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视频专用播放器:http://halcom.cn/forum.php?mod=viewthread&tid=258&extra=page%3D1
可参考链接:http://blog.csdn.net/carson2005/article/details/9502053
http://www.cnblogs.com/Imageshop/p/3810402.html
MATLAB retinex:http://halcom.cn/forum.php?mod=v ... ge=1&extra=#pid1127
read_image (Image, 'C:/Users/ysw/Desktop/视频讲解/图库/Tulips.jpg')
count_channels(Image, Channels)
if(Channels==1)
return()
else
decompose3(Image,R,G,B)
c :=500
get_image_size(R,Width, Height)
tuple_gen_sequence(0, Width*Height-1, 1, Sequence)
tuple_mod(Sequence,Width, CF)
tuple_div(Sequence,Width,RF)
Fnok := exp( - ( (RF-Height/2)*(RF-Height/2)+ (CF-Width/2)*(CF-Width/2) )*1.0/c/c )
K:=1.0/sum(Fnok)
F := K*Fnok
convert_image_type(R,IR,'real')
convert_image_type(G,IG,'real')
convert_image_type(B,IB,'real')
gen_image_const(Filters, 'real', Width, Height)
set_grayval(Filters, RF,CF,F)
*fft_generic(Filters, FF,'to_freq', -1, 'sqrt', 'dc_center', 'complex')
fft_image(Filters,FF)
fft_generic(IR, IFR, 'to_freq', -1, 'sqrt', 'dc_center', 'complex')
mult_image(IFR,FF,IFR,1.0,0)
fft_generic(IFR,IFR,'from_freq',1,'sqrt','dc_center','real')
fft_generic(IG, IFG, 'to_freq', -1, 'sqrt', 'dc_center', 'complex')
mult_image(IFG,FF,IFG,1.0,0)
fft_generic(IFG,IFG,'from_freq',1,'sqrt','dc_center','real')
fft_generic(IB, IFB, 'to_freq', -1, 'sqrt', 'dc_center', 'complex')
mult_image(IFB,FF,IFB,1.0,0)
fft_generic(IFB,IFB,'from_freq',1,'sqrt','dc_center','real')
log_image(IR, LIR, 10)
log_image(IG, LIG, 10)
log_image(IB, LIB, 10)
log_image(IFR, LIFR, 10)
log_image(IFG, LIFG, 10)
log_image(IFB, LIFB, 10)
sub_image(LIR, LIFR, RR,1.0, 0)
sub_image(LIG, LIFG, GG,1.0, 0)
sub_image(LIB, LIFB, BB,1.0, 0)
scale_image_max(RR,RR)
scale_image_max(GG,GG)
scale_image_max(BB,BB)
compose3(RR,GG,BB,ImageRetinex)
endif
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