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

HELP with mysql_real_escape_string
I'm looking to remove apostrophes completely when someone enters lyrics but don't have a clue how to

Using two $_POST Function / Switch () statements, second does not work.
Hi all. I’m new to php and am having a problem getting $_POST Function / switch () to work. I

PHP Game
hy i was wondering what's the best method in order to make some automatic updates in a php game
<

Auto fill in input value based on User_ID
Hello,

I'm looking form some input on the following problem.

User loads page ->

Send current URL in URL with a $_GET variable problem.
Hello community,

I have created a function that gets the current variable of a page, example:

str_replace help
Hey there,

I'm a PHP newb, I'm having troubles with the str_replace function. I want to clean

parse error
On my local machine I keep getting parse error for my footer. When I put it online, it doesn't show

Request for tunning the below query
Hi,

Can any one help me on the below query while improving the performance,

How do I get the row number from from an sql table query
Hi all

I have a table that I query and it returns a number of rows.
mysql_num_rows($query)

Saving data from a form into a file
Hey everybody,

Sorry, I am really new to PHP coding and such but a project kind of got thrust

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