writing my own sobel filter convolution - something is wrong


Posted on 16th Feb 2014 07:03 pm by admin

I am trying to keep it very simple, I cant see anything wrong with my logic, could anybody help point me to the right direction?!!


Did you know?Explore Trending and Topic pages for more stories like this.
Code: { int Shorizontal[] = {-1, 0, 1, -2, 0, 2, -1, 0, 1}; int Svertical[] = {1, 2, 1, 0, 0, 0, -1, -2, -1}; for (int x = 0; x < image.dimx(); x++) for (int y = 0; y < image.dimy(); y++) for (int c = 0; c < 3; c++) // loop through colour channels { int counter = 0; float tempH = 0; float tempV = 0; for (int a = -1; a <= 1; a++) for (int b = -1; b <= 1; b++) if (x + a >= 0 && x + a <= image.dimx() && y + b >= 0 && y + b <= image.dimy()) { tempH += image(x + a,y + b,0, c) * Shorizontal[counter]; tempV += image(x + a,y + b,0, c) * Svertical[counter]; counter++; } image(x,y,0,c) = sqrt(pow(tempH,2) + pow(tempV,2)); } }
No comments posted yet

Your Answer:

Login to answer
291 Like 22 Dislike
Previous forums Next forums
Other forums

Problem with PHP code- simple contact form
I'm relativily new to PHP; I know HTML and CSS stuff but I have a problem- I have a contact form wit

Getting number of affected rows in SQLPLUS..
Hi everyone,
I have a shell script where i am invoking sqlplus, running a query and saving t

losing variables between php brackets
Hi

have got this code:
Code: $id=mysql_result($result,0,"itemid");
$title=mys

Need help with unexpected T-STRING error
I'm a newbie and I'm still learning PHP. However this error has me stumped. I've googled, searched t

Else statement screws up all css
Does anyone know what goes wrong in the process with this php code?
This code seems to be causing

Something like an INI editor or a DelimitedText-Editor
Hi all,

Am very, very, very new to PHP and not sure if I should be posting this to a Javascri

Automatic Webpage ??
I have a page www.mysite.com/test.php with a
<form>
<textarea name=&q

$GPRMC and NMEA how to extract from report
Hi There,

Im a little bi lost and not sure where to start with this one, ive got a small gps

DOMDocument parsing
Hello, I am parsing an xml file from an API which I have converted into a DOMDocument in php. This i

Just a white page
Okay so, my website, when I click SignUp on it it takes me to /join.php but its a complete white pag

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash