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The J2KREGIONOFINTEREST data type indicates how to define the region of interest.
typedef enum _J2KREGIONOFINTEREST{J2K_USE_LEAD_REGION = 0, // Use LEAD bitmap regionJ2K_USE_OPTION_RECT = 1, // Use rcROI member of FILEJ2KOPTIONS}J2KREGIONOFINTEREST, *pJ2KREGIONOFINTEREST;
If J2K_USE_LEAD_REGION is used, then any region shape is acceptable. It will be converted internally by the filter to a rectangle.
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