How can i extract the component H of only the region of interest?

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Tomas
Tomas 2012-11-12
Hello
To calculate the difference between the value h of an image and values from tab, I used these lines.
h=HSV(:,:,1);
d = abs(h - tab(i,1));
Now how can i extract the H of only the region of interest because I want to calculate the difference between the value h of only the region of interest of the image and the values from tab. knowing that bw is the binairy mask of the segmented image. thanks

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回答（1 个）

Image Analyst
Image Analyst 2012-11-13
You can do this
maskedDifferences = d(bw);
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Tomas
Tomas 2012-11-14
using whos bw, I get
Name Size Bytes Class Attributes
bw 498x750 2988000 double
To get this image, I used
bw=zeros(L,C);
if (some instructions)
bw(i,j)=1;

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