selectROI: Select a Region of Interest in an Image
In neuroconductor-devel-releases/Rvision: Basic Computer Vision Library

Description Usage Arguments Value Author(s) See Also Examples

selectROI allows the user to select a region of interest (ROI) in an image. An ROI is a polygonal region selected by clicking on the locations of the vertices of the polygon.

1 2	selectROI(image, window_name = "Display", scale = 1, return_mask = TRUE)

`image`	An `Image` object.
`window_name`	A character string representing the name of the display window (default: "Display").
`scale`	The scaling of the display relative to the image size (default: 1).
`return_mask`	Should the function return a mask of the ROI. The mask is an 8-bit single-channel image with the pixels inside the ROI painted white and the pixels outside the ROI painted black (default: TRUE).

If return_mask == FALSE, a data frame with the following two columns:

x: the x coordinates of the ROI polygon.
y: the y coordinates of the ROI polygon.

If return_mask == TRUE, a list containing the data frame containing the coordinates of the ROIand an 8-bit single-channel image corresponding to the mask of the ROI.

Simon Garnier, garnier@njit.edu

Image, newDisplay, display, click