Image Processing: Region of Interest
LEADTOOLS region of interest makes it possible for you to process or display only a specific portion of an image rather than the entire image. Complete references to LEADTOOLS ROI features are located in the “Region Processing” book of the Raster Imaging help file.
Regions can be defined as any combination of shapes such as rectangles, ellipses, rounded-rectangles, freehand shapes, polygons, curves and Bezier curves.
LEADTOOLS also lets you select regions based on the color of pixels within the image. You can select all pixels in an image having a specific color, or you can select contiguous regions starting with a seed pixel and a color-match threshold by using the "Magic Wand". Complex regions can be built using a variety of boolean operations on simpler regions, including union, intersection, xor, and inverse.
Additionally, LEADTOOLS includes region functionality not found or difficult in Windows including resizing, rotating and other transformations of regions.
Region of Interest Function Groups
and Examples