Separates overlapping circular particles and classifies them based on their radius, surface area, and perimeter.
Starting from a binary image, Find Circles finds the radius and center of the circular particles even when multiple circular particles overlap. In addition, this node can trace the circles in the destination image by constructing and using a distance map to determine the radius of each particle. This node modifies the source image. If you need the original source image, create a copy of the image using the Copy Image node before using this nodeI.
Reference to the source image.
Reference to the destination image.
Smallest radius, in pixels, to detect.
Default: 1
Largest radius, in pixels, to detect.
Default: 10
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Default: No error
Reference to the destination image.
If image dst is connected, image dst out is the same as image dst. Otherwise, image dst out refers to the image referenced by image src.
Array of measurements for all detected circles.
Horizontal position, in pixels, of the center of the circle.
Vertical position, in pixels, of the center of the circle.
Radius of the circle in pixels.
Surface area, in pixels, of the nucleus of the circle as defined by the Danielsson distance map.
Number of circles detected in the image.
Error information.
The node produces this output according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application