Pattern Recognition of Holographic Image Library Based on Deep Learning

Table 6

Function test cases and qualification criteria.

Function name	Test case	Expected output	Eligibility criteria
getLightCorrect	Color ID card image in highlight area	Correct the image	Visually distinguish the corrected image of the highlight area
ImageDiv_ Otsu_ Bersen	ID card image after grayscale	Binarized image	The characters are clearly separated from most of the background
getLineDiv	Binarized image	Character row and column split data	Split characters correctly
getGridDiv	Unit number normalization graph	Character elastic grid segmentation results	The projections within the grid are roughly equal
getHanziLine	Unit number normalization graph	The four fuzzy stroke features of Chinese characters	The four stroke characteristics of Chinese characters are correctly extracted through visual discrimination
getHanziFeature	Unit number normalization graph	Chinese character characteristics	No criterion