Write block of data to region of image
region_start— Top-left coordinates of region
Top-left coordinates of the region to write, specified as a 2-element vector of
positive integers of the form
region_data— Image data
Image data, specified as a numeric array.
When you construct a class that inherits from the
class, you can optionally implement this method to enable incremental, region-based
writing of images. Image adapter classes that do not implement the
writeRegion method are read-only.