Omar Rizwan
.
@omar,
Woah
Profile for
Omar Rizwan.
Username @omar, social.omar.website.
Role: admin
About
"The program should, in some way, expand the concept of what computer paint programs are, as well as what mark making can be."
Joined on Dec, 2022.
754 posts.
Followed by 270.
Following 142.
Omar Rizwan
.
@omar,
Omar Rizwan
.
@omar,
"The intentions are great (sometimes the outcomes are great too)"
Omar Rizwan
.
@omar,
double-entry programming https://hachyderm.io/@inthehands/111647871515141630
Omar Rizwan
.
@omar,
"An Atlas of Cyberspaces: 3D Information Spaces" https://personalpages.manchester.ac.uk/staff/m.dodge/cybergeography/atlas/info_spaces.html
Omar Rizwan
.
@omar,
Omar Rizwan
.
@omar,
Omar Rizwan
.
@omar,
Omar Rizwan
.
@omar,
![do u ever watch someone take a
picture of someone else's phone
screen and feel the angel of omar
give a nod of approval
[heart react]](https://social.omar.website/fileserver/01PG4R73NMJC888MJM2KBM4CFF/attachment/original/01QZNSC0Z04VCWZHSS0ECTX6W0.png)
Omar Rizwan
.
@omar,
Rekt
![The Truth
Source code in opencv
The truth is, as usual, in the source code of opencv. Typically, we see the relevant code blocks,
x0 = x = (x - cx)*ifx;
y0 = y = (y - cy)*ify;
// compensate distortion iteratively
for( j = 0; j < iters; j++ )
{
double r2 = x*x + y*y;
double icdist = (1 + ((k[7]*r2 + k[6])*r2 + k[5])*r2)/(1 + ((k[4]*r2 + k[1])*r2 + k[0])*r2);
double deltaX = 2*k[2]*x*y + k[3]*(r2 + 2*x*x);
double deltaY = k[2]*(r2 + 2*y*y) + 2*k[3]*x*y;
x = (x0 - deltaX)*icdist;
y = (y0 - deltaY)*icdist;
}
This confirmed my guess and the math equations in the opencv tutorial is not correct.](https://social.omar.website/fileserver/01PG4R73NMJC888MJM2KBM4CFF/attachment/original/01M8VPTJTBYHK78C48QP46Y57Y.png)
Omar Rizwan
.
@omar,
feel like the older i get the more i'm like, nothing on the internet can be relied on to last at its original location, and people should copy and paste / blockquote as much as possible so that the information is more likely to survive in at least 1 place https://mastodon.coffee/@shammers/111574867456966246