Minrect I Minarearect Mat Contours I

This is a recurring subject in and since i was unable to find a relevant implementation i decided to accept the challenge.

Minrect i minarearect mat contours i. This is an example for an application using detection of contours unevenness and skin color detection using hsv color space etc. I minrect i minarearect cv mat contours i. So far by using a threshold and a series of dilations and erosions i can successfully find the contour for the area i require. I was working on an opencv project which needed to determine angle of a rotatedrect extracted from a contour using minarearect function.

As an application example of opencv this time we will run ahmet yaylalioglu s example of counting fingers with gr lychee. It took me a while to understand whats going on with the determined rotatedrect. Creating bounding boxes and circles for contours next tutorial. For size t 0.

I made some modifications to the squares demo present in opencv and the resulting c code below is able to detect a sheet of paper in the image. Use the opencv function cv fitellipse. Unknown of the weird and intelligent logic behind the angle property of the rotatedrect my results weren t as expected. Use the opencv function cv minarearect.

ابتدا در خط 57 با استفاده از تابع minarearect کوچک ترین مستطیل در بر گیرنده همه نقاط کانتور contours i را پیدا می کنیم و آن را در minrect i قرار می دهیم. Image moments goal. I think your result is quite good maybe if you select the contour with greatest area using image moments and then finding the minimal rotated rectangle of the bigger contour. However my attempts to use minarearect as a precursor to rotation and cropping are failing to generate a rectangle that contains the input contour.