Low contrast object detection
15 views (last 30 days)
Show older comments
I am trying to write a matlab code to draw a line over the rope in the attached photo. Probably due to the low contrast between rope (object) an the background, I was unabel to detect the edges / identify the location of the rope. Can someone help me ?
I have tried many methods including methods such as Radon transform and peak detection. But no luck so far.
Thanks in adance.
0 Comments
Answers (1)
JESUS DAVID ARIZA ROYETH
on 15 Nov 2019
I leave you an example:
close all
RGB=imread('negativo/drone_image.jpg');
BW = (RGB(:,:,1) >= 142 ) & (RGB(:,:,1) <= 178) & ...
(RGB(:,:,2) >= 93 ) & (RGB(:,:,2) <= 215) & ...
(RGB(:,:,3) >= 182 ) & (RGB(:,:,3) <= 226);
BW = imdilate(BW,strel('line',300,90));
BW = bwpropfilt(BW, 'MajorAxisLength', [500, 5262]);
imshowpair(RGB,BW,'montage')
0 Comments
See Also
Categories
Find more on Array Geometries and Analysis in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!