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?!!


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

mails going in spam??
The mails I sent to folks in my database using mail(function) are going in spam??

Any idea ho

controlling/creating accounts with privileges
hi all,
i'm trying to figure out how i can create/control account with privileges, for instance a

Pagination
Okay here is the page in question: http://blenderteachings.000a.biz/tutorials.hamishhill.php

Multipe Dynamic Controls & AutoPostback Issue
I currently have a need to create many dynamic controls (Example Textboxes) that need to do a PostBa

getting weird error..
okay, I'm getting an error on this particular function, something about the syntax in the mysql LIMI

Pls help with PHP
Pls can anyone direct me on how to create a user account for a customer. For example i want know if

listing help
Hi,

at first, great new design!!! I like it,

i got a problem,

I want to list so

for loop without same $i digits?
Hi,

Can some guru please advise how can I accomplish this with a simple for loop ?

I

Option box to change variable
Hello, i need help by making a script!

I need to write a file with option box, so a dropdown

Check premium expire
Hi,

I am making a simple file hosting site and want to check if users premium subscriptions h

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