Azzera filtri
Azzera filtri

Hough Transform source code explanation

1 visualizzazione (ultimi 30 giorni)
I couldn't understand the following code's for loop.
What is the purpose of the for loop here?
Why is for iterating from 7 to 7?
And, why is num_peak = 3?
clc
close all
clear all
imageCaption = sprintf('scratchedImage.jpg');
inputOriginalImage = imread(imageCaption);
inputOriginalImageGrayscale = rgb2gray(inputOriginalImage);
completelyPreprocessedImage = Preprocessing( inputOriginalImage );
N = 12;
bandpassFilteredImage = BandpassFiltering(completelyPreprocessedImage, N);
[ROWS, COLS, k] = size(bandpassFilteredImage);
homomorphicFilteredImage = HomomorphicFiltering(bandpassFilteredImage, N);
num_peak=3;
length_line=[];
for n=7:7
inputImageForHaughtTransform = bwareaopen( homomorphicFilteredImage(:,:,n),20);
[houghtTransformMatrix, theta, rho] = hough(inputImageForHaughtTransform);
imshow(houghtTransformMatrix,[],'XData',theta,
'YData',rho,'InitialMagnification','fit');
xlabel('\theta'), ylabel('\rho');
axis on, axis normal, hold on;
peaks = houghpeaks(houghtTransformMatrix,3,'threshold',
ceil(0.3*max(houghtTransformMatrix(:))));
x = theta(peaks(:,2));
y = rho(peaks(:,1));
plot(x,y,'s','color','white');
foundLinesInHoughOperation = houghlines(inputImageForHaughtTransform,
theta, rho, peaks,'FillGap',
5,'MinLength',7);
figure, imshow(completelyPreprocessedImage), hold on
MarkLines(foundLinesInHoughOperation, COLS, x, y);
end

Risposta accettata

Walter Roberson
Walter Roberson il 22 Apr 2017
We do not know. The routines Preprocessing(), BandpassFiltering(), and HomomorphicFiltering() are not Mathworks routines, and they do not appear to be anywhere in a File Exchange contribution either. We do not know what they do.

Più risposte (0)

Prodotti

Community Treasure Hunt

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

Start Hunting!

Translated by