CHARACTER SEGMENTATION METHOD FOR DIGITAL BACK-LIGHT CONSOLE UNDER DIFFERENT LIGHTING CONDITIONS
DOI:
https://doi.org/10.11113/jt.v78.8785Keywords:
Color system, character segmentation, image processing, monitoring console, lighting conditionsAbstract
Nowadays, the amount of electronics data has been significantly increased especially for the case of capturing images. One particular application regarding this is the image capturing of the monitoring console. The real information in such console image capturing is the characters on the console. To transfer or store the captured images, a large amount of data is required. Instead of storing the whole image, some image processing techniques could be applied in order to reduce the amount of data required. In this paper, an image processing is done to the captured image by considering the value (V) parameter of the HSV (Hue, Saturation, and Value) color system. An adaptive threshold algorithm on V parameter is adopted for segmenting the console area and then the character areas from the whole image. Under different lighting conditions from 0 to 450 lux, the console area can be correctly selected. And, the characters appearing on the console area can be retrieved with 98 percent of accuracy.
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