Detection of circles in image with measuring radius and center doesn't work

@zygmuntszpak When I was trying to use ImageEdgeDetection.jl with ImageFeatures.jl and tried to measure circular objects in image.came across the issue that hough_circle_gradient() doesn't work with Canny() and It shouldn't I think since old canny() is implemented very differently.Would we need a new implementation of hough transform?or should we stick with old canny() to get hough_circle_gradient() work?

Also faced issue that I had to manually tweak the Percentiles for high ,low ,spatial_scale especially with this image with extra white padded border,I felt it was some bug at first..then realized I had to set low above a certain value then it worked just fine...is there a method to automatically detect that specific low?

Start by reproducing hough_circle_gradient() with Canny() and the older canny() implementation on the linked padded-border image. Trace how each function handles gradients and the high, low, and spatial_scale percentiles. Done means the incompatibility or parameter behavior is reproduced, tested, and resolved or clearly documented with an agreed implementation direction.