An image text detection method
A text detection and image technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve problems such as unsatisfactory results, and achieve the effects of high detection rate, wide application range, and high work efficiency
Active Publication Date: 2017-11-03
西安烽火软件科技有限公司
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[0002] In the Internet society, there is a large amount of multimedia data on the network, and picture data is overwhelming in the network society. There is a large amount of visual information in the picture, which can reflect the information to the viewer. However, the current digital image and photo coding form is all based on red, green and blue pixels. Composition, like computer text data, it is impossible to directly read the text in the form of a string to read the text on the photo. When there is text in the photo, it must be recognized by human eyes. Therefore, there are special pictures on the market Text detection and recognition products (OCR, Optical Character Recognition) are launched, such as Hanwang and Wentong; although these OCR products have been launched on the market, these products have certain shortcomings, which can only be used for standard clear black characters on white background or black background Scanned pictures with white typesetting can be detected and recognized, but the effect of text captured by photographs in natural scenes is not ideal
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[0039] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0040] Such as figure 1 As shown, the present invention designs a kind of image text detection method, is used for detecting and obtaining the text in the picture, in actual application process, comprises the following steps:
[0041] Step A. Enlarge the image to be detected according to a preset ratio, then perform grayscale processing on the image to be detected, and then perform sharpening processing on the image to be detected after grayscale processing, specifically including the following steps:
[0042] Step A01. Enlarge the image to be detected by a preset ratio by applying a high-order interpolation method with a cubic polynomial, adjust the image DPI (Dots Per Inch) to 300 to enhance the text detection effect under low-resolution images, and then perform Grayscale processing;
[0043] Among them, cubic polyno...
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The invention relates to an image text detection method, which is based on a new step process design, has a wider range of applications, and has a higher detection rate. In the environment with complex scenes, such as photos, parade banners, handwritten text and other scenes, the text on the picture can be detected, and the work efficiency is higher.
Description
technical field [0001] The invention relates to an image character detection method. Background technique [0002] In the Internet society, there is a large amount of multimedia data on the network, and picture data is overwhelming in the network society. There is a large amount of visual information in the picture, which can reflect the information to the viewer. However, the current digital image and photo coding form is all based on red, green and blue pixels. Composition, like computer text data, it is impossible to directly read the text in the form of a string to read the text on the photo. When there is text in the photo, it must be recognized by human eyes. Therefore, there are special pictures on the market Text detection and recognition products (OCR, Optical Character Recognition) are launched, such as Hanwang and Wentong; although these OCR products have been launched on the market, these products have certain shortcomings, which can only be used for standard cle...
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IPC IPC(8): G06K9/20G06K9/54G06K9/62
Inventor 王康李峰岳
Owner 西安烽火软件科技有限公司