<div dir="ltr">Hello,<br><br>Currently i am using HoughTransform2DCirclesImageFi<div dir="ltr">lter to detect circular objects within the images. <br>By
reading the documentation of this filter, it is not so hard to
understand the whole procedure of detection and the meaning of
parameters.<br>
<br>However, one thing which really puzzled me is that, how the accumulator and radius images are filled.<br>As
i understood, the accumulator image is filled by drawing a line
interval specified by MIN_RADIUS and MAX_RADIUS along the gradient
direction.<br>
But how the radius image is filled simultaneously and how the radius is determined after having the center point? <br><br>Anybody
can give me some hints about this or send me a link of the papers which
might be related to the algorithm inside this filter in detail?<br>
<br>Thanks a lot.<br><br>William</div></div>