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)); } }

Your Answer:

Login to answer

Other forums

Google voice
I currently have a form in html, but I want it in php so the information is not in the source code.<

reating a background image
I am building a site in drupal and have a php form in it, due to certain annoyances with module buil

Creating a custom API
I'm creating a site, and I need to create a basic API. Unfortunately I have no idea where to start.

Form always sends to error page...
Hello,
Any help will be greatly appreciated. I am having trouble getting multiple fields to be re

Help uploading .JPG
I have a problem with upload images when the ending is .JPG capitalized.. I really don't know what c

Linking with Foreign Keys
I have been getting an erro when I try and link:

create table Faculty_Specialty (I_Name v

How to get exact 3 moths post date from today date using javascript
How to get exact 3 moths post date from today date using javascript
Please help

Frustrated php Newbie
First off, I am pretty much a PHP nub. I can read and understand the language (most of the time) so

I would like "for" to wait 5 sec
I would like my 'for' loop to wait 5 sec before second iteration.


for ($i=0; $i<10

Need help PLEASE
ok i have this warning showing up

Warning: in_array() [function.in-array]: Wrong datatype for