From 8ed9819713ad50b006097a2a6135b04a8e7d95fe Mon Sep 17 00:00:00 2001
From: quantumwebx <131485434+quantumwebx@users.noreply.github.com>
Date: Sat, 17 Feb 2024 03:30:42 +0530
Subject: [PATCH] Fix bias in HoughLines with even number of rho discretization
 steps #25038

---
 README.md                     | 1 +
 modules/imgproc/src/hough.cpp | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index e812c37393..0bbf182043 100644
--- a/README.md
+++ b/README.md
@@ -34,3 +34,4 @@ Please read the [contribution guidelines](https://github.com/opencv/opencv/wiki/
 * [Follow OpenCV on Mastodon](http://mastodon.social/@opencv) in the Fediverse
 * [Follow OpenCV on Twitter](https://twitter.com/opencvlive)
 * [OpenCV.ai](https://opencv.ai): Computer Vision and AI development services from the OpenCV team.
+
diff --git a/modules/imgproc/src/hough.cpp b/modules/imgproc/src/hough.cpp
index 9961e9aace..d5793446d1 100644
--- a/modules/imgproc/src/hough.cpp
+++ b/modules/imgproc/src/hough.cpp
@@ -214,7 +214,7 @@ HoughLinesStandard( InputArray src, OutputArray lines, int type,
         int idx = _sort_buf[i];
         int n = cvFloor(idx*scale) - 1;
         int r = idx - (n+1)*(numrho+2) - 1;
-        line.rho = (r - (numrho - 1)*0.5f) * rho;
+        line.rho = (r - (numrho - 1)/2) * rho;
         line.angle = static_cast<float>(min_theta) + n * theta;
         if (type == CV_32FC2)
         {