PHP bindings for Leptonica library (www.leptonica.com)

Constants:

LEPT_SCALE
LEPT_SCALE_SMOOTH
LEPT_SCALE_AREA_MAP
LEPT_SCALE_BY_SAMPLING
LEPT_ROTATE_SHEAR
LEPT_ROTATE_AREA_MAP
LEPT_BRING_IN_WHITE
LEPT_BRING_IN_BLACK
LEPT_JPEG
LEPT_BMP
LEPT_PNG
LEPT_TIFF
LEPT_TIFF_PACKBITS
LEPT_TIFF_RLE
LEPT_TIFF_G3
LEPT_TIFF_G4
LEPT_TIFF_LZW
LEPT_TIFF_ZIP
LEPT_PNM
LEPT_PS
LEPT_GIF

Functions:
 resource leptonica_open(string file [, bool autorotate ]);
 resource leptonica_box_create(int x, int y, int width, int height);
 resource leptonica_scale(resource image, float scalefactorx, float scalefactory [, int mode ]);
 resource leptonica_rotate(resource image, float angle [, int type [, int incolor [, int width [, int height]]]]);
 resource leptonica_rotate_orth(resource image, int quads);
 resource leptonica_clip(resource image, resource box);
 resource leptonica_unsharpmask(resource image, int smooth, float fract);
 bool leptonica_save(resource image, string filename[, int format [, bool quality ]]);
 resource leptonica_clone(resource image);
 bool leptonica_close(resource image);
 bool leptonica_box_close(resource box);
 bool leptonica_comment_set(resource image, string text);
 string leptonica_comment_get(resource image);
 array leptonica_pixel_get(resource image, int x, int y);
 array leptonica_image_info(resource image);
 resource leptonica_filter_rank(resource image, int width, int height [, double rank ])
 resource leptonica_to_8bit_gray(resource image);
 string leptonica_data_get(resource image);
 int leptonica_color(int red, int blue, int green)
 resource leptonica_open_from_string(string data[, zend_bool autorotate)
 string leptonica_save_to_string(resource image[, int format [, int quality ]])