If statement with multiple conditions
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I am processing an image in which I have found a blob and I want to compare the location of that blob to the location of a blob in another image using these lines of code:
for j=1:10
if ((blob(j,4)-50)<centroid(1)<(blob(j,4)+50))
if ((blob(j,5)-50)<centroid(2)<(blob(j,5)+50))
%more processing code
end
end
end
The variable 'blob' is a table of previous blobs that have been found with their x location in column 4 and the y location in column 5. The code should cycle through the 10 other voids in the table and if their location is within +/- 50 pixels to the new void then some further code is run.
At the moment these if statements seem to be taken as true regardless of what centroid values I put in and I can't see why.
Note that centroid(1) and centroid(2) have been found using regionprops.
采纳的回答
Hi,
this ((blob(j,4)-50)<centroid(1)<(blob(j,4)+50)) wont work as you might think it will. You need to split it up into
((blob(j,4)-50)<centroid(1)) && (centroid(1)<(blob(j,4)+50))
For the answer to why is that needed see the second half of my answer here:
3 个评论
Robert
2013-4-16
Maryam ARIF
2019-2-24
write a matlab program which takes a number x from user and display the value of the following function f(x)
f(x)= x/a(x) if x<=-1
sqrtx/b(x) if-1<x<10
x^3/2/r(x) otherwise
where a(x)=1 if cosx>0
-1 otherwise
b(x)=1 if sinx>0
-1 otherwise
r(x)=1 ifcosxsinx>0
-1 otherwise
Maryam ARIF
2019-2-24
plz give me a answer of this question
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