|
|
|
|
News Overview Download Order F.A.Q. More info Support Links Welcome QuickStart ActiveX Control C++ Wrapper J2K_Image open easyDecode selectTiles getMetaData decode close J2K_Frames open getFrames getFrame operators close API Reference General getVersion getLastError getErrorStr getLastErrorStr Unlock Open / Close Open Close Info GetInfo •GetInfoEx GetResolutions GetResDimensions GetMetaData Decoding EasyDecode SelectTiles Decode Cancel Debug StartLogging StopLogging |
J2K_GetInfoEx Use this function to get extended information about J2K image. int J2K_GetInfoEx(void *image, J2K_Info *info); Parameters image A pointer, obtained from J2K_Open(). info A pointer to a J2K_Info structure:
Return value
typedef struct
{
int Version; // J2K-Codec version as returned by J2K_getVersion()
int Width, Height; // Width and height of the image in pixels
int Components; // The number of components in the image
int FileType; // The image file type (0 = Lossy J2K, 1 = Lossy JP2, 2 = Lossless J2K, 3 = Lossless JP2).
int hTiles, vTiles; // The number of tiles in horizontal and vertical directions
int Precision; // Component precision in bits. All components must have the same precision.
}
J2K_Info;
Returns J2KERR_SUCCESS or an error code if the function has failed. See the list of error codes here. Notes The main reason to use J2K_GetInfoEx() is to obtain the number of horizontal and vertical tiles in the image for selective tiles decoding. Example
J2K_Info info; J2K_Open() J2K_GetInfo() |
| 2004-2008 © Alex Saveliev |