3. A computer-implemented method of determining character frame size for text comprising logograms, the method comprising: under control of one or more computer systems configured with specific executable instructions, receiving a page image of the text; identifying centers of at least some of a plurality of characters in the page image of the text; calculating a plurality of distances between adjacent ones of the centers; and determining a character frame size for the text based at least in part on the plurality of distances between the centers.
3. A computer-implemented method of determining character frame size for text comprising logograms, the method comprising: under control of one or more computer systems configured with specific executable instructions, receiving a page image of the text; identifying centers of at least some of a plurality of characters in the page image of the text; calculating a plurality of distances between adjacent ones of the centers; and determining a character frame size for the text based at least in part on the plurality of distances between the centers. 7. The method of claim 3 , wherein calculating the distance between adjacent ones of the centers comprises calculating at least one horizontal distance between two centers of horizontally adjacent characters and at least one vertical distance between two centers of vertically adjacent characters.