Caches image pyramids in main memory up to a maximum number of images or memory limit.
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| drwnImagePyramidCache (double downSampleRate=0.5, int minSize=32, int maxLevels=DRWN_INT_MAX, bool bGreyImages=GREY_IMAGES, bool bBigMemory=BIG_MEMORY) |
| | constructor
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| drwnImagePyramidCache (const vector< string > &filenames, double downSampleRate=0.5, int minSize=32, int maxLevels=DRWN_INT_MAX, bool bGreyImages=GREY_IMAGES, bool bBigMemory=BIG_MEMORY) |
| | constructor with filename initialization
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| ~drwnImagePyramidCache () |
| | destructor
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void | initialize (const vector< string > &filenames) |
| | initializes the cache with a list of filenames (cache must be clear)
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void | append (const string &filename) |
| | adds a filename to the list of filenames managed by the cache
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void | clear () |
| | Clear all images from the cache (cannot be called if some images are still locked). Does nothing if in big memory mode.
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bool | empty () const |
| | returns true if the cache is empty (but may still be initialized with filenames)
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size_t | size () const |
| | returns number of image pyramids stored in the cache
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size_t | numLocked () const |
| | returns number of locked image pyramids in the cache
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size_t | memory () const |
| | returns memory used by in-memory image pyramids
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const string & | filename (unsigned indx) const |
| | return the filename for image indx
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int | index (const string &filename) const |
| | returns the index for filename (slow)
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void | lock (unsigned indx) |
| | lock an image pyramid for use (loads if not already in the cache)
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void | lock (const string &filename) |
| | lock an image pyramid for use (loads if not already in the cache)
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size_t | levels (unsigned indx) const |
| | returns the number of levels in an image pyramid (which must first be locked)
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size_t | levels (const string &filename) const |
| | returns the number of levels in an image pyramid (which must first be locked)
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const cv::Mat & | get (unsigned indx, unsigned level=0) const |
| | returns an image (which must first be locked)
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const cv::Mat & | get (const string &filename, unsigned level=0) const |
| | returns an image (which must first be locked)
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void | unlock (unsigned indx) |
| | marks an image as free
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void | unlock (const string &filename) |
| | marks an image as free
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cv::Mat | copy (unsigned indx, unsigned level=0) |
| | copies an image without locking it (caller must free the image)
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cv::Mat | copy (const string &filename, unsigned level=0) |
| | copies an image without locking it (caller must free the image)
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Caches image pyramids in main memory up to a maximum number of images or memory limit.
- See also
- drwnImageCache.
