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

WORDPRESS - Multiple Loops Only Going to One Post?
I have various pages with multiple loops and i need them to be individual to all other categories.

Compare user input to flat file data
Help...Am a complete newbie to programming so my code is prolly quite long. Am trying to verify a us

Error with Font and imagettfbbox
I keep getting an error that says "Warning: imagettfbbox() [function.imagettfbbox]: Could not f

How to load mysql (and other) extensions into PHP
How to load mysql (and other) extensions into PHP PHP Development forum discussing coding practices,

Sequencing or queuing parallel process
Scenario is as follows
There is one parent process say P1 and 4 child processes say A B C D

Buggy registration system
Hey, I just started scripting in PHP, and I ran into a few problems.
Code: <?php
includ

Registration
ok so i have a site where people can register and login which works now thanks to someone on here th

please hep to get values from a table row
can anyone tel me how I can select and get data from one row by pressing an Edit button in that row

please help me in this update statment
hi every one

if I have table and this data in it

id name
10

OPINIONS WANTED
This is my login page code, and I want your opinion on it please!

Code: // Login ~ CHECKS

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