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

Not Loading Function Into Div
I'm not sure whether to put this under the php forum or ajax forum but because I tink it's more of a

cookie problem
I hv a website url
In this site main menu functionality based on cookie when user click on parti

a multi dimensional array with for each
hi, I have been asked to write an array, I have Zone 2,3,4,5,6,7,8 each zone has 3 sections of weigh

empty() error
Why does

Code: empty($USER_ID = $_SESSION["USER_ID"])
create this error...

path to include folder
Hi everyone,

When I'm testing locally, I have to add the name of the site folder as part of t

TCP Sending Unsigned Char...
Hi...

I want to send over tcp/ip some data, i have the data in hexadecimal, and when i tr

Displaying returned XML in another PHP page
I have an online payment form that will return XML given if a payment is successful or declines. I

Captcha problem users just refresh and it will let them auto submit again
Users will just re submit and not have to enter the new captcha.. ? Lol but if i refresh the page, t

mysqli_fetch_assoc returns multiple arrays, how to return a single array
Hello, I am using mysqli_fetch_assoc which is returning multiple rows, so it looks like:

Code

Change Age automatically
hi guys . im new to php , is it possible to change age value in mysql automatically when year change

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