A method and device for correcting bill characters
A character and bill technology, applied in the field of bill character correction, can solve the problems of increasing the time complexity of the algorithm and reducing the efficiency of the algorithm, and achieves the effect of reducing the time complexity, improving the efficiency and avoiding the rotation correction.
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Embodiment 1
[0030] Bills include various securities and certificates, such as stocks, treasury bills, corporate bonds, invoices, bills of lading, etc. Most of their shapes are symmetrical, especially rectangular.
[0031] In order to effectively solve the problem that the existing character inclination correction method is used for the situation that "note characters have different degrees of inclination, and the inclination degree of each character is different", when the inclination characters are corrected as a whole, on the one hand, some characters are still in a serious inclination, On the other hand, correcting the entire bill image increases the time complexity of the algorithm and reduces the efficiency of the algorithm. The method for correcting bill characters provided in this embodiment includes: detecting a single character in the face image; determining a rectangular area within the preset buffer area outside the minimum circumscribed rectangle of the single character; calcul...
Embodiment 2
[0074] figure 2 A schematic structural diagram of an apparatus for correcting notes characters provided by the second embodiment of the present invention is shown. For illustrative purposes, figure 2 Only the parts relevant to the embodiment of the present invention are shown. figure 2 The device for character correction of the example includes a detection module 201, a determination module 202, a calculation module 203 and a correction module 204, wherein:
[0075] The detection module 201 is configured to detect a single character in the banknote image.
[0076] Preferably, the individual characters on the face of the banknote can be printed or handwritten in various fonts of characters and numbers used in various countries or regions or ethnic groups in the world, such as Arabic numerals, Chinese pinyin letters, Chinese characters, English letters and the like.
[0077] Preferably, according to the characteristics of the characters in the bill face, for example, the b...
Embodiment 3
[0098] figure 2 The shown determination module 202 may include a search unit 301 and an exclusion unit 302, such as image 3 A schematic structural diagram of the device for character correction of bills provided by the third embodiment of the present invention is shown in . in:
[0099] The search unit 301 is configured to search for a rectangular area outside the preset buffer range outside the smallest circumscribed rectangle of the single character.
[0100] It should be noted that there are innumerable rectangular areas within the preset buffer area outside the minimum circumscribed rectangle of a single character, and as long as a reasonable number (for example, 1) of the preset buffer outside the minimum circumscribed rectangle is found for each character The rectangular area within the range is searched for the rectangular area within the preset buffer range outside the minimum circumscribing rectangle of the next character. This method can flexibly search for the req...
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