MATLAB Answers

Why did the image duplicated 3 times?

14 views (last 30 days)
Shu Yi Ho
Shu Yi Ho on 13 Aug 2019
Commented: stanley Nwade on 12 Oct 2020
How do I make it to display only once instead of 3 times for "after adjusting brightness" & "number of circles detected"?
[x,y] = size(ori_roi{i});
%%Replace each pixel of the image
for a=1:1:x
for b=1:1:y
C(a,b) = ori_roi{i}(a,b) + imageBrightness;

Accepted Answer

Geoff Hayes
Geoff Hayes on 13 Aug 2019
Edited: Geoff Hayes on 13 Aug 2019
Shu - it looks like your original image is in colour so consider this line of code
[x,y] = size(ori_roi{i});
i suspect that y is three times what it should be...and so your image is replicated three times. For example,
Z = randi(255,100,50,3);
[x y] = size(Z);
Where x is 100 (correct) but y is 150 (incorrect!). And so the code
for a=1:1:x
for b=1:1:y
C(a,b) = Z(a,b) + 0;
creates C which is a 100x150 array.
To fix you can use
[x y, ~] = size(ori_roi{i});
so that the third dimension is ignored and your x and y should now be the correct height and width of your original image.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!