roicolor() - Image Processing

roicolor selects a region of interest (ROI)
within an indexed or intensity image and returns a binary image. (You
can use the returned image as a mask for masked filtering using roifilt2.)BW = roicolor(A,low,high) 
returns an ROI selected as those pixels that lie within the colormap
range [low high].BW = (A >= low) & (A <= high)
BW is a binary image with 0's outside the
region of interest and 1's inside.BW = roicolor(A,v) returns
an ROI selected as those pixels in A that match
the values in vector v. BW is
a binary image with 1's where the values of A match
the values of v.

Syntax

BW = roicolor(A,low,high)BW = roicolor(A,v)

Example

BW = (A >= low) & (A <= high)

Output / Return Value

Limitations

Alternatives / See Also

Reference