Picture words detecting method
A text detection and image technology, applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of not fully utilizing the color information of the text area, unable to locate the text area well, and difficult to text information, and achieve simple text detection. and accuracy, simple edge cases, high recall and precision
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] As shown in Figure 1, a kind of method of picture character detection of the present invention specifically comprises the following steps:
[0025] (1) Merge the edge maps of the original image on multiple color components to obtain the cumulative edge map.
[0026] The cumulative edge map is obtained by merging multiple edge maps detected by the improved Sobel edge detection operator on each YUV component of the picture. The method of merging is shown in formula 1, E is the cumulative edge map, E Y ,E U and E V are the edge maps detected by the improved Sobel edge detection operator on each YUV component of the picture, and E(x, y) is the edge intensity value of the point whose coordinates are (x, y) in the cumulative edge map, which is equal to E. Y ,E U and E V The smaller one of the cumulative sum of the edge intensi...
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